docs: update .all-contributorsrc [skip ci]

docs: update README.md [skip ci]
dix(webapp): create quick customer/vendor (#206 )
2026-02-17 21:30:31 +00:00 · 2023-08-16 19:36:08 +00:00 · 2023-08-16 19:36:07 +00:00 · 2023-08-14 18:38:02 +02:00 · 2023-08-10 20:29:39 +02:00 · 2023-07-23 22:38:13 +02:00
428 changed files with 10695 additions and 9471 deletions
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -0,0 +1,71 @@
+{
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": false,
+  "commitType": "docs",
+  "commitConvention": "angular",
+  "contributors": [
+    {
+      "login": "abouolia",
+      "name": "Ahmed Bouhuolia",
+      "avatar_url": "https://avatars.githubusercontent.com/u/2197422?v=4",
+      "profile": "https://github.com/abouolia",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "ameir",
+      "name": "Ameir Abdeldayem",
+      "avatar_url": "https://avatars.githubusercontent.com/u/374330?v=4",
+      "profile": "http://ameir.net",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "elforjani13",
+      "name": "ElforJani13",
+      "avatar_url": "https://avatars.githubusercontent.com/u/39470382?v=4",
+      "profile": "https://github.com/elforjani13",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "scheibling",
+      "name": "Lars Scheibling",
+      "avatar_url": "https://avatars.githubusercontent.com/u/24367830?v=4",
+      "profile": "https://scheibling.se",
+      "contributions": [
+        "bug"
+      ]
+    },
+    {
+      "login": "suhaibaffan",
+      "name": "Suhaib Affan",
+      "avatar_url": "https://avatars.githubusercontent.com/u/18115937?v=4",
+      "profile": "https://github.com/suhaibaffan",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "KalliopiPliogka",
+      "name": "Kalliopi Pliogka",
+      "avatar_url": "https://avatars.githubusercontent.com/u/81677549?v=4",
+      "profile": "https://github.com/KalliopiPliogka",
+      "contributions": [
+        "bug"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7,
+  "skipCi": true,
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "projectName": "bigcapital",
+  "projectOwner": "bigcapitalhq"
+}
--- a/.env.example
+++ b/.env.example
@@ -8,26 +8,32 @@ MAIL_FROM_NAME=
 MAIL_FROM_ADDRESS=

 # Database
-DB_USER=
-DB_HOST=
-DB_PASSWORD=
-DB_CHARSET=
+DB_HOST=mysql
+DB_USER=bigcapital
+DB_PASSWORD=bigcapital
+DB_ROOT_PASSWORD=root
+DB_CHARSET=utf8

 # System database
 SYSTEM_DB_NAME=bigcapital_system
+# SYSTEM_DB_USER=
+# SYSTEM_DB_PASSWORD=
+# SYSTEM_DB_NAME=
+# SYSTEM_DB_CHARSET=

-# Tenants databases
+# Tenant databases
 TENANT_DB_NAME_PERFIX=bigcapital_tenant_
-
-# MongoDB
-MONGODB_DATABASE_URL=mongodb://localhost/bigcapital
-
-# Authentication
-JWT_SECRET=b0JDZW56RnV6aEthb0RGPXVEcUI
+# TENANT_DB_HOST=
+# TENANT_DB_USER=
+# TENANT_DB_PASSWORD=
+# TENANT_DB_CHARSET=

 # Application
-BASE_URL=https://bigcapital.ly
-CONTACT_US_MAIL=support@bigcapital.ly
+BASE_URL=http://example.com
+JWT_SECRET=b0JDZW56RnV6aEthb0RGPXVEcUI
+
+# Jobs MongoDB
+MONGODB_DATABASE_URL=mongodb://localhost/bigcapital

 # App proxy
 PUBLIC_PROXY_PORT=80
@@ -38,6 +44,9 @@ AGENDASH_AUTH_USER=agendash
 AGENDASH_AUTH_PASSWORD=123123

 # Sign-up restrictions
-SIGNUP_DISABLED=true
+SIGNUP_DISABLED=false
 SIGNUP_ALLOWED_DOMAINS=
-SIGNUP_ALLOWED_EMAILS=
+SIGNUP_ALLOWED_EMAILS=
+
+# API rate limit (points,duration,block duration).
+API_RATE_LIMIT=120,60,600
--- a/.gitattributes
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+docker/nginx/scripts/build-nginx.sh text eol=lf
+docker/mariadb/docker-entrypoint.sh text eol=lf
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,93 @@

 All notable changes to Bigcapital server-side will be in this file.

+# [0.9.11] - 23-07-2023
+
+* added: Restart policy to docker compose files. by @suhaibaffan in https://github.com/bigcapitalhq/bigcapital/pull/198
+* fix: Expose and expand the rate limit to the env variables by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/195
+
+# [0.9.10] - 18-07-2023
+
+* feat(e2e): E2E onboarding process by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/176
+* fix(webapp): Show loading message of cost computing job on financial reports by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/196
+* fix(webapp): Change the currency code of sales and purchases transactions with foreign contacts. 
+
+# [0.9.9] - 28-06-2023
+
+* refactor: Customer and vendor select component by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/171
+* chore: Move auto-increment components in separate files by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/170
+* fix: Style of quick item drawer by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/173
+* fix: Should not show the form before loading account by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/172
+* fix: Payment made form does not handle not unique number an e… by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/177
+* fix: Internal note of invoice/bill payment does not saving by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/181
+* fix: Storing cash flow transaction description by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/180
+* fix: No currency in amount field on money in/out dialogs by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/179
+* fix: No default branch for customer/vendor opening balance branch by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/182
+
+# [0.9.8] - 19-06-2023
+
+`bigcapitalhq/webapp`
+
+* add: Inventory Adjustment option to the item drawer by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/158
+* fix: use all drawers names from common enum object by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/157
+* fix: adjustment type options do not show up by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/159
+* fix: change the remove line text to be red to intent as a danger action by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/162
+* fix: rename sidebar localization keys names to be keyword path by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/161
+* fix: manual journal placeholder text by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/160
+* fix: warehouses select component by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/168
+
+`bigcapitalhq/server`
+
+* fix: sending emails on reset password and registration by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/167
+
+## [0.9.7] - 14-06-2023
+
+`@bigcapital/webapp`
+* fix: change the footer links of onboarding pages by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/139
+
+`@bigcapital/server`
+* fix: expense transaction journal entries by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/155
+
+## [0.9.6] - 12-06-2023
+
+`@bigcapital/webapp`
+
+* fix: remove duplicated form submitting by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/138
+* feat: add monorepo version on the application sidebar by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/136
+
+## [0.9.5] - 11-06-2023
+
+`@bigcapital/server`
+
+* fix: filter ledger entries that effect contact balance to AR/AP accounts only by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/132
+
+`@bigcapital/webapp`
+
+* fix: catch journal error when create a journal with accounts have different currency by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/135
+* fix: add duplicate icon to context menu of customers and vendors table by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/133
+* fix: customer/vendor opening balance with exchange rate by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/134
+
+## [0.9.4] - 08-06-2023
+
+`@bigcapital/monorepo`
+- fixed: docker-compose line-ending issue on Windows by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/130
+
+`@bigcapital/server`
+- fixed: Disable Webpack minification for JS class name reading.
+
+## [0.9.3] -04-06-2023
+
+`@bigcapital/monorepo`
+* Added: Add env variable to customize the proxy public ports by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/125
+* Added: Migrate the server database to MariaDB by @abouolia in https://github.com/bigcapitalhq/bigcapital/pull/128
+
+## [0.9.2] - 31-05-2023
+
+`@bigcapital/webapp`
+
+- fixed: move `packaeg-lock.json` inside docker container.
+- fixed: remove Sentry from the web client.
+
 ## [0.9.1] - 28-05-2023

 `@bigcapital/server`
--- a/README.md
+++ b/README.md
@@ -7,6 +7,24 @@
  <p align="center">
    Simple, smart online accounting software for small and medium businesses.
  </p>
+
+  <p align="center">
+    <a href="https://github.com/bigcapitalhq/bigcapital/commits/develop">
+      <img src="https://img.shields.io/github/commit-activity/m/bigcapitalhq/bigcapital/develop" />
+    </a>
+    <a href="https://discord.com/invite/c8nPBJafeb">
+      <img src="https://img.shields.io/discord/1066514716752625725?label=Discord" alt="" />
+    </a>
+    <a href="https://github.com/bigcapitalhq/bigcapital/graphs/contributors">
+      <img src="https://img.shields.io/github/contributors/bigcapitalhq/bigcapital" alt="" />
+    </a>
+    <a href="https://github.com/bigcapitalhq/bigcapital/blob/develop/LICENSE">
+      <img src="https://img.shields.io/github/license/bigcapitalhq/bigcapital" alt="" />
+    </a>
+    <a href="https://twitter.com/bigcapitalhq"> 
+      <img src="https://img.shields.io/twitter/follow/bigcapitalhq?style=social" alt="twitter" />
+    </a>
+  </p>
 </p>

 # What's Bigcapital?
@@ -22,10 +40,47 @@ Bigcapital is a smart and open-source accounting and inventory software, Bigcapi
 # Resources

 - [Documentation](https://docs.bigcapital.ly/) - Learn how to use.
+- [Contribution](https://github.com/bigcapitalhq/bigcapital/blob/develop/CONTRIBUTING.md) - Welcome to any contributions.
 - [Discord](https://discord.com/invite/c8nPBJafeb) - Ask for help.
 - [Bug Tracker](https://github.com/bigcapitalhq/bigcapital/issues) - Notify us new bugs.
- [Source Code](https://github.com/bigcapitalhq/bigcapital) - Github repo.

 # Changelog

 Please see [Releases](https://github.com/bigcapitalhq/bigcapital/releases) for more information what has changed recently.
+
+# Recognition
+
+<a href="https://news.ycombinator.com/item?id=36118990">
+  <img
+    style="width: 250px; height: 54px;" width="250" height="54"
+    alt="Featured on Hacker News"
+    src="https://hackernews-badge.vercel.app/api?id=36118990"
+  />
+</a>
+
+# Contributors
+
+Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/abouolia"><img src="https://avatars.githubusercontent.com/u/2197422?v=4?s=100" width="100px;" alt="Ahmed Bouhuolia"/><br /><sub><b>Ahmed Bouhuolia</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/commits?author=abouolia" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://ameir.net"><img src="https://avatars.githubusercontent.com/u/374330?v=4?s=100" width="100px;" alt="Ameir Abdeldayem"/><br /><sub><b>Ameir Abdeldayem</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Aameir" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/elforjani13"><img src="https://avatars.githubusercontent.com/u/39470382?v=4?s=100" width="100px;" alt="ElforJani13"/><br /><sub><b>ElforJani13</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/commits?author=elforjani13" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://scheibling.se"><img src="https://avatars.githubusercontent.com/u/24367830?v=4?s=100" width="100px;" alt="Lars Scheibling"/><br /><sub><b>Lars Scheibling</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3Ascheibling" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/suhaibaffan"><img src="https://avatars.githubusercontent.com/u/18115937?v=4?s=100" width="100px;" alt="Suhaib Affan"/><br /><sub><b>Suhaib Affan</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/commits?author=suhaibaffan" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/KalliopiPliogka"><img src="https://avatars.githubusercontent.com/u/81677549?v=4?s=100" width="100px;" alt="Kalliopi Pliogka"/><br /><sub><b>Kalliopi Pliogka</b></sub></a><br /><a href="https://github.com/bigcapitalhq/bigcapital/issues?q=author%3AKalliopiPliogka" title="Bug reports">🐛</a></td>
+    </tr>
+  </tbody>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -21,10 +21,16 @@ services:
    depends_on:
      - server
      - webapp
+    deploy:
+      restart_policy:
+        condition: unless-stopped

  webapp:
    container_name: bigcapital-webapp
    image: ghcr.io/bigcapitalhq/webapp:latest
+    deploy:
+      restart_policy:
+        condition: unless-stopped

  server:
    container_name: bigcapital-server
@@ -37,6 +43,9 @@ services:
      - mysql
      - mongo
      - redis
+    deploy:
+      restart_policy:
+        condition: unless-stopped
    environment:
      # Mail
      - MAIL_HOST=${MAIL_HOST}
@@ -93,20 +102,26 @@ services:

  mysql:
    container_name: bigcapital-mysql
+    deploy:
+      restart_policy:
+        condition: unless-stopped
    build:
-      context: ./docker/mysql
+      context: ./docker/mariadb
    environment:
      - MYSQL_DATABASE=${SYSTEM_DB_NAME}
      - MYSQL_USER=${DB_USER}
      - MYSQL_PASSWORD=${DB_PASSWORD}
-      - MYSQL_ROOT_PASSWORD=${DB_PASSWORD}
+      - MYSQL_ROOT_PASSWORD=${DB_ROOT_PASSWORD}
    volumes:
      - mysql:/var/lib/mysql
    expose:
      - '3306'

  mongo:
-    container_name: bigcapital-mongo 
+    container_name: bigcapital-mongo
+    deploy:
+      restart_policy:
+        condition: unless-stopped
    build: ./docker/mongo
    expose:
      - '27017'
@@ -115,6 +130,9 @@ services:

  redis:
    container_name: bigcapital-redis
+    deploy:
+      restart_policy:
+        condition: unless-stopped
    build:
      context: ./docker/redis
    expose:
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,20 +6,23 @@
 version: '3.3'

 services:
-  mysql:
+  mariadb:
    build:
-      context: ./docker/mysql
+      context: ./docker/mariadb
    environment:
      - MYSQL_DATABASE=${SYSTEM_DB_NAME}
      - MYSQL_USER=${DB_USER}
      - MYSQL_PASSWORD=${DB_PASSWORD}
-      - MYSQL_ROOT_PASSWORD=${DB_PASSWORD}
+      - MYSQL_ROOT_PASSWORD=${DB_ROOT_PASSWORD}
    volumes:
      - mysql:/var/lib/mysql
    expose:
      - '3306'
    ports:
      - '3306:3306'
+    deploy:
+      restart_policy:
+        condition: unless-stopped

  mongo:
    build: ./docker/mongo
@@ -29,6 +32,9 @@ services:
      - mongo:/var/lib/mongodb
    ports:
      - '27017:27017'
+    deploy:
+      restart_policy:
+        condition: unless-stopped

  redis:
    build:
@@ -37,6 +43,9 @@ services:
      - "6379"
    volumes:
      - redis:/data
+    deploy:
+      restart_policy:
+        condition: unless-stopped

 # Volumes
 volumes:
--- a/docker/mariadb/Dockerfile
+++ b/docker/mariadb/Dockerfile
@@ -1,4 +1,4 @@
-FROM mysql:5.7
+FROM mariadb:10.2

 USER root
 ADD my.cnf /etc/mysql/conf.d/my.cnf
@@ -17,7 +17,7 @@ ENV MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD
 COPY ./init.sql /scripts/init.template.sql
 COPY ./docker-entrypoint.sh /docker-entrypoint-initdb.d/docker-initialize.sh

-# The scripts in the docker-entrypoint-initdb.d/ directory are executed as
+# The scripts in the `docker-entrypoint-initdb.d/` directory are executed as
 # the mysql user inside the MySQL Docker container.
 RUN chown -R mysql:root /docker-entrypoint-initdb.d
 RUN chown -R mysql:root /scripts
--- a/docker/mariadb/docker-entrypoint.sh
+++ b/docker/mariadb/docker-entrypoint.sh
--- a/docker/mariadb/init.sql
+++ b/docker/mariadb/init.sql
@@ -1,2 +1,3 @@
 GRANT ALL PRIVILEGES ON *.* TO '{MYSQL_USER}'@'%' IDENTIFIED BY '{MYSQL_PASSWORD}' WITH GRANT OPTION;
+
 FLUSH PRIVILEGES;
--- a/docker/mariadb/my.cnf
+++ b/docker/mariadb/my.cnf
--- a/e2e/_utils.ts
+++ b/e2e/_utils.ts
@@ -0,0 +1,13 @@
+import { Page } from '@playwright/test';
+
+export const clearLocalStorage = (page: Page) => {
+  return page.evaluate(`window.localStorage.clear()`);
+};
+
+export const defaultPageConfig = () => {
+  return {
+    extraHTTPHeaders: {
+      'ngrok-skip-browser-warning': 'any-value',
+    },
+  };
+};
--- a/e2e/authentication.spec.ts
+++ b/e2e/authentication.spec.ts
@@ -1,14 +1,23 @@
 import { test, expect, Page } from '@playwright/test';
+import { faker } from '@faker-js/faker';
+import { clearLocalStorage, defaultPageConfig } from './_utils';

 let authPage: Page;

 test.describe('authentication', () => {
  test.beforeAll(async ({ browser }) => {
-    authPage = await browser.newPage();
+    authPage = await browser.newPage({ ...defaultPageConfig() });
+  });
+  test.afterAll(async () => {
+    await authPage.close();
+  });
+  test.afterEach(async ({ context }) => {
+    context.clearCookies();
+    await clearLocalStorage(authPage);
  });

  test.describe('login', () => {
-    test.beforeAll(async () => {
+    test.beforeEach(async () => {
      await authPage.goto('/auth/login');
    });
    test('should show the login page.', async () => {
@@ -30,10 +39,23 @@ test.describe('authentication', () => {
      await authPage.getByRole('link', { name: 'Sign up' }).click();
      await expect(authPage.url()).toContain('/auth/register');
    });
+    test('should the email or password is not correct.', async () => {
+      await authPage.getByLabel('Email Address').click();
+      await authPage.getByLabel('Email Address').fill(faker.internet.email());
+
+      await authPage.getByLabel('Password').click();
+      await authPage.getByLabel('Password').fill(faker.internet.password());
+
+      await authPage.getByRole('button', { name: 'Log in' }).click();
+
+      await expect(authPage.locator('body')).toContainText(
+        'The email and password you entered did not match our records.'
+      );
+    });
  });

  test.describe('register', () => {
-    test.beforeAll(async () => {
+    test.beforeEach(async () => {
      await authPage.goto('/auth/register');
    });
    test('should first name, last name, email and password be required.', async () => {
@@ -52,10 +74,36 @@ test.describe('authentication', () => {
        'Password is a required field'
      );
    });
+    test('should signup successfully.', async () => {
+      const form = authPage.locator('form');
+      await form.getByLabel('First Name').click();
+      await form.getByLabel('First Name').fill(faker.person.firstName());
+
+      await form.getByLabel('Email').click();
+      await form.getByLabel('Email').fill(faker.internet.email());
+
+      await form.getByLabel('Last Name').click();
+      await form.getByLabel('Last Name').fill(faker.person.lastName());
+
+      await form.getByLabel('Password').click();
+      await form.getByLabel('Password').fill(faker.internet.password());
+
+      await authPage.getByRole('button', { name: 'Register' }).click();
+
+      await expect(authPage.locator('h1')).toContainText(
+        'Register a New Organization now!'
+      );
+    });
  });

  test.describe('reset password', () => {
-    test.beforeAll(async () => {
+    test.beforeAll(async ({ browser }) => {
+      authPage = await browser.newPage({ ...defaultPageConfig() });
+    });
+    test.afterAll(async () => {
+      await authPage.close();
+    });
+    test.beforeEach(async () => {
      await authPage.goto('/auth/send_reset_password');
    });
    test('should email be required.', async () => {
--- a/e2e/items.spec.ts
+++ b/e2e/items.spec.ts
@@ -0,0 +1,7 @@
+import { test, expect, Page } from '@playwright/test';
+
+test.describe('item', () => {
+  test('should validate all required fields.', () => {});
+  test('should save the item successfully.', () => {});
+  test('should item code be unqiue.', () => {});
+});
--- a/e2e/onboarding.spec.ts
+++ b/e2e/onboarding.spec.ts
@@ -0,0 +1,86 @@
+import { test, expect, Page } from '@playwright/test';
+import { faker } from '@faker-js/faker';
+import { defaultPageConfig } from './_utils';
+
+let authPage: Page;
+let businessLegalName: string = faker.company.name();
+
+test.describe('onboarding', () => {
+  test.beforeAll(async ({ browser }) => {
+    authPage = await browser.newPage({ ...defaultPageConfig() });
+    await authPage.goto('/auth/register');
+
+    const form = authPage.locator('form');
+
+    await form.getByLabel('First Name').fill(faker.person.firstName());
+    await form.getByLabel('Email').fill(faker.internet.email());
+    await form.getByLabel('Last Name').fill(faker.person.lastName());
+    await form.getByLabel('Password').fill(faker.internet.password());
+
+    await authPage.getByRole('button', { name: 'Register' }).click();
+  });
+  test('should validation catch all required fields', async () => {
+    const form = authPage.locator('form');
+
+    await authPage.getByRole('button', { name: 'Save & Continue' }).click();
+
+    await expect(form).toContainText('Organization name is a required field');
+    await expect(form).toContainText('Location is a required field');
+    await expect(form).toContainText('Base currency is a required field');
+    await expect(form).toContainText('Fiscal year is a required field');
+    await expect(form).toContainText('Time zone is a required field');
+  });
+  test.describe('after onboarding', () => {
+    test.beforeAll(async () => {
+      await authPage.getByLabel('Legal Organization Name').click();
+      await authPage
+        .getByLabel('Legal Organization Name')
+        .fill(businessLegalName);
+
+      // Fill Business Location.
+      await authPage
+        .getByRole('button', { name: 'Select Business Location...' })
+        .click();
+      await authPage.locator('a').filter({ hasText: 'Albania' }).click();
+
+      // Fill Base Currency.
+      await authPage
+        .getByRole('button', { name: 'Select Base Currency...' })
+        .click();
+      await authPage
+        .locator('a')
+        .filter({ hasText: 'AED - United Arab Emirates Dirham' })
+        .click();
+
+      // Fill Fasical Year.
+      await authPage
+        .getByRole('button', { name: 'Select Fiscal Year...' })
+        .click();
+      await authPage.locator('a').filter({ hasText: 'June - May' }).click();
+
+      // Fill Timezone.
+      await authPage
+        .getByRole('button', { name: 'Select Time Zone...' })
+        .click();
+      await authPage.getByText('Pacific/Marquesas-09:30').click();
+
+      // Click on Submit button
+      await authPage.getByRole('button', { name: 'Save & Continue' }).click();
+    });
+    test('should onboarding process success', async () => {
+      await expect(authPage.locator('body')).toContainText(
+        'Congrats! You are ready to go',
+        {
+          timeout: 30000,
+        }
+      );
+    });
+    test('should go to the dashboard after clicking on "Go to dashboard" button.', async () => {
+      await authPage.getByRole('button', { name: 'Go to dashboard' }).click();
+
+      await expect(
+        authPage.locator('[data-testId="dashboard-topbar"] h1')
+      ).toContainText(businessLegalName);
+    });
+  });
+});
--- a/lerna.json
+++ b/lerna.json
@@ -1,6 +1,6 @@
 {
  "$schema": "node_modules/lerna/schemas/lerna-schema.json",
  "useWorkspaces": true,
-  "version": "0.0.0",
+  "version": "0.9.6",
  "npmClient": "npm"
 }
--- a/package-lock.json
+++ b/package-lock.json
@@ -333,6 +333,12 @@
        "@jridgewell/trace-mapping": "0.3.9"
      }
    },
+    "@faker-js/faker": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/@faker-js/faker/-/faker-8.0.2.tgz",
+      "integrity": "sha512-Uo3pGspElQW91PCvKSIAXoEgAUlRnH29sX2/p89kg7sP1m2PzCufHINd0FhTXQf6DYGiUlVncdSPa2F9wxed2A==",
+      "dev": true
+    },
    "@gar/promisify": {
      "version": "1.1.3",
      "resolved": "https://registry.npmjs.org/@gar/promisify/-/promisify-1.1.3.tgz",
@@ -945,6 +951,7 @@
      "version": "1.32.3",
      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.32.3.tgz",
      "integrity": "sha512-BvWNvK0RfBriindxhLVabi8BRe3X0J9EVjKlcmhxjg4giWBD/xleLcg2dz7Tx0agu28rczjNIPQWznwzDwVsZQ==",
+      "dev": true,
      "requires": {
        "@types/node": "*",
        "fsevents": "2.3.2",
@@ -954,7 +961,8 @@
        "playwright-core": {
          "version": "1.32.3",
          "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.32.3.tgz",
-          "integrity": "sha512-SB+cdrnu74ZIn5Ogh/8278ngEh9NEEV0vR4sJFmK04h2iZpybfbqBY0bX6+BLYWVdV12JLLI+JEFtSnYgR+mWg=="
+          "integrity": "sha512-SB+cdrnu74ZIn5Ogh/8278ngEh9NEEV0vR4sJFmK04h2iZpybfbqBY0bX6+BLYWVdV12JLLI+JEFtSnYgR+mWg==",
+          "dev": true
        }
      }
    },
@@ -1003,7 +1011,8 @@
    "@types/node": {
      "version": "18.14.6",
      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.14.6.tgz",
-      "integrity": "sha512-93+VvleD3mXwlLI/xASjw0FzKcwzl3OdTCzm1LaRfqgS21gfFtK3zDXM5Op9TeeMsJVOaJ2VRDpT9q4Y3d0AvA=="
+      "integrity": "sha512-93+VvleD3mXwlLI/xASjw0FzKcwzl3OdTCzm1LaRfqgS21gfFtK3zDXM5Op9TeeMsJVOaJ2VRDpT9q4Y3d0AvA==",
+      "dev": true
    },
    "@types/normalize-package-data": {
      "version": "2.4.1",
@@ -2324,6 +2333,7 @@
      "version": "2.3.2",
      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
      "optional": true
    },
    "function-bind": {
--- a/package.json
+++ b/package.json
@@ -18,12 +18,13 @@
    "shared/*"
  ],
  "devDependencies": {
+    "@commitlint/cli": "^17.4.2",
    "@commitlint/config-conventional": "^17.4.2",
    "@commitlint/config-lerna-scopes": "^17.4.2",
+    "@faker-js/faker": "^8.0.2",
+    "@playwright/test": "^1.32.3",
    "husky": "^8.0.3",
-    "lerna": "^6.4.1",
-    "@commitlint/cli": "^17.4.2",
-    "@playwright/test": "^1.32.3"
+    "lerna": "^6.4.1"
  },
  "engines": {
    "node": "14.x"
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@bigcapital/server",
-  "version": "1.7.1",
+  "version": "0.9.5",
  "description": "",
  "main": "src/server.ts",
  "scripts": {
--- a/packages/server/scripts/webpack.common.js
+++ b/packages/server/scripts/webpack.common.js
@@ -65,6 +65,9 @@ exports.getCommonWebpackOptions = ({
        },
      ],
    },
+    optimization: {
+      minimize: false,
+    },
  };

  if (isDev) {
--- a/packages/server/src/api/controllers/Authentication.ts
+++ b/packages/server/src/api/controllers/Authentication.ts
@@ -92,6 +92,7 @@ export default class AuthenticationController extends BaseController {
      check('password')
        .exists()
        .isString()
+        .isLength({ min: 6 })
        .trim()
        .escape()
        .isLength({ max: DATATYPES_LENGTH.STRING }),
@@ -106,7 +107,7 @@ export default class AuthenticationController extends BaseController {
    return [
      check('password')
        .exists()
-        .isLength({ min: 5 })
+        .isLength({ min: 6 })
        .custom((value, { req }) => {
          if (value !== req.body.confirm_password) {
            throw new Error("Passwords don't match");
--- a/packages/server/src/api/controllers/Purchases/Bills.ts
+++ b/packages/server/src/api/controllers/Purchases/Bills.ts
@@ -1,26 +1,27 @@
+import { Service, Inject } from 'typedi';
 import { Router, Request, Response, NextFunction } from 'express';
 import { check, param, query } from 'express-validator';
-import { Service, Inject } from 'typedi';
-import { AbilitySubject, BillAction, IBillDTO, IBillEditDTO } from '@/interfaces';
+import {
+  AbilitySubject,
+  BillAction,
+  IBillDTO,
+  IBillEditDTO,
+} from '@/interfaces';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
-import BillsService from '@/services/Purchases/Bills';
 import BaseController from '@/api/controllers/BaseController';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
 import { ServiceError } from '@/exceptions';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
-import BillPaymentsService from '@/services/Purchases/BillPaymentsService';
+import { BillsApplication } from '@/services/Purchases/Bills/BillsApplication';

@Service()
 export default class BillsController extends BaseController {
  @Inject()
-  private billsService: BillsService;
+  private billsApplication: BillsApplication;

  @Inject()
  private dynamicListService: DynamicListingService;

-  @Inject()
-  private billPayments: BillPaymentsService;
-
  /**
   * Router constructor.
   */
@@ -97,7 +98,7 @@ export default class BillsController extends BaseController {
  /**
   * Common validation schema.
   */
-  get billValidationSchema() {
+  private get billValidationSchema() {
    return [
      check('bill_number').exists().trim().escape(),
      check('reference_no').optional().trim().escape(),
@@ -142,7 +143,7 @@ export default class BillsController extends BaseController {
  /**
   * Common validation schema.
   */
-  get billEditValidationSchema() {
+  private get billEditValidationSchema() {
    return [
      check('bill_number').optional().trim().escape(),
      check('reference_no').optional().trim().escape(),
@@ -184,14 +185,14 @@ export default class BillsController extends BaseController {
  /**
   * Bill validation schema.
   */
-  get specificBillValidationSchema() {
+  private get specificBillValidationSchema() {
    return [param('id').exists().isNumeric().toInt()];
  }

  /**
   * Bills list validation schema.
   */
-  get billsListingValidationSchema() {
+  private get billsListingValidationSchema() {
    return [
      query('view_slug').optional().isString().trim(),
      query('stringified_filter_roles').optional().isJSON(),
@@ -203,7 +204,7 @@ export default class BillsController extends BaseController {
    ];
  }

-  get dueBillsListingValidationSchema() {
+  private get dueBillsListingValidationSchema() {
    return [
      query('vendor_id').optional().trim().escape(),
      query('payment_made_id').optional().trim().escape(),
@@ -216,17 +217,16 @@ export default class BillsController extends BaseController {
   * @param {Response} res
   * @param {Function} next
   */
-  async newBill(req: Request, res: Response, next: NextFunction) {
+  private async newBill(req: Request, res: Response, next: NextFunction) {
    const { tenantId, user } = req;
    const billDTO: IBillDTO = this.matchedBodyData(req);

    try {
-      const storedBill = await this.billsService.createBill(
+      const storedBill = await this.billsApplication.createBill(
        tenantId,
        billDTO,
        user
      );
-
      return res.status(200).send({
        id: storedBill.id,
        message: 'The bill has been created successfully.',
@@ -241,13 +241,13 @@ export default class BillsController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async editBill(req: Request, res: Response, next: NextFunction) {
+  private async editBill(req: Request, res: Response, next: NextFunction) {
    const { id: billId } = req.params;
    const { tenantId, user } = req;
    const billDTO: IBillEditDTO = this.matchedBodyData(req);

    try {
-      await this.billsService.editBill(tenantId, billId, billDTO, user);
+      await this.billsApplication.editBill(tenantId, billId, billDTO, user);

      return res.status(200).send({
        id: billId,
@@ -263,12 +263,12 @@ export default class BillsController extends BaseController {
   * @param {Request} req -
   * @param {Response} res -
   */
-  async openBill(req: Request, res: Response, next: NextFunction) {
+  private async openBill(req: Request, res: Response, next: NextFunction) {
    const { id: billId } = req.params;
    const { tenantId } = req;

    try {
-      await this.billsService.openBill(tenantId, billId);
+      await this.billsApplication.openBill(tenantId, billId);

      return res.status(200).send({
        id: billId,
@@ -285,12 +285,12 @@ export default class BillsController extends BaseController {
   * @param {Response} res
   * @return {Response}
   */
-  async getBill(req: Request, res: Response, next: NextFunction) {
+  private async getBill(req: Request, res: Response, next: NextFunction) {
    const { tenantId } = req;
    const { id: billId } = req.params;

    try {
-      const bill = await this.billsService.getBill(tenantId, billId);
+      const bill = await this.billsApplication.getBill(tenantId, billId);

      return res.status(200).send(this.transfromToResponse({ bill }));
    } catch (error) {
@@ -304,12 +304,12 @@ export default class BillsController extends BaseController {
   * @param {Response} res -
   * @return {Response}
   */
-  async deleteBill(req: Request, res: Response, next: NextFunction) {
+  private async deleteBill(req: Request, res: Response, next: NextFunction) {
    const billId = req.params.id;
    const { tenantId } = req;

    try {
-      await this.billsService.deleteBill(tenantId, billId);
+      await this.billsApplication.deleteBill(tenantId, billId);

      return res.status(200).send({
        id: billId,
@@ -326,7 +326,7 @@ export default class BillsController extends BaseController {
   * @param {Response} res -
   * @return {Response}
   */
-  public async billsList(req: Request, res: Response, next: NextFunction) {
+  private async billsList(req: Request, res: Response, next: NextFunction) {
    const { tenantId } = req;
    const filter = {
      page: 1,
@@ -338,7 +338,7 @@ export default class BillsController extends BaseController {

    try {
      const { bills, pagination, filterMeta } =
-        await this.billsService.getBills(tenantId, filter);
+        await this.billsApplication.getBills(tenantId, filter);

      return res.status(200).send({
        bills: this.transfromToResponse(bills),
@@ -356,12 +356,13 @@ export default class BillsController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  public async getDueBills(req: Request, res: Response, next: NextFunction) {
+  private async getDueBills(req: Request, res: Response, next: NextFunction) {
    const { tenantId } = req;
    const { vendorId } = this.matchedQueryData(req);

    try {
-      const bills = await this.billsService.getDueBills(tenantId, vendorId);
+      const bills = await this.billsApplication.getDueBills(tenantId, vendorId);
+
      return res.status(200).send({ bills });
    } catch (error) {
      next(error);
@@ -374,7 +375,7 @@ export default class BillsController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  public getBillPaymentsTransactions = async (
+  private getBillPaymentsTransactions = async (
    req: Request,
    res: Response,
    next: NextFunction
@@ -383,7 +384,7 @@ export default class BillsController extends BaseController {
    const { id: billId } = req.params;

    try {
-      const billPayments = await this.billPayments.getBillPayments(
+      const billPayments = await this.billsApplication.getBillPayments(
        tenantId,
        billId
      );
--- a/packages/server/src/api/controllers/Purchases/BillsPayments.ts
+++ b/packages/server/src/api/controllers/Purchases/BillsPayments.ts
@@ -4,7 +4,7 @@ import { check, param, query, ValidationChain } from 'express-validator';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
 import { ServiceError } from '@/exceptions';
 import BaseController from '@/api/controllers/BaseController';
-import BillPaymentsService from '@/services/Purchases/BillPayments/BillPayments';
+import { BillPaymentsApplication } from '@/services/Purchases/BillPayments/BillPaymentsApplication';
 import BillPaymentsPages from '@/services/Purchases/BillPayments/BillPaymentsPages';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
@@ -17,18 +17,18 @@ import { AbilitySubject, IPaymentMadeAction } from '@/interfaces';
@Service()
 export default class BillsPayments extends BaseController {
  @Inject()
-  billPaymentService: BillPaymentsService;
+  private billPaymentsApplication: BillPaymentsApplication;

  @Inject()
-  dynamicListService: DynamicListingService;
+  private dynamicListService: DynamicListingService;

  @Inject()
-  billPaymentsPages: BillPaymentsPages;
+  private billPaymentsPages: BillPaymentsPages;

  /**
   * Router constructor.
   */
-  router() {
+  public router() {
    const router = Router();

    router.post(
@@ -106,7 +106,7 @@ export default class BillsPayments extends BaseController {
   * Bill payments schema validation.
   * @return {ValidationChain[]}
   */
-  get billPaymentSchemaValidation(): ValidationChain[] {
+  private get billPaymentSchemaValidation(): ValidationChain[] {
    return [
      check('vendor_id').exists().isNumeric().toInt(),
      check('exchange_rate').optional().isFloat({ gt: 0 }).toFloat(),
@@ -129,7 +129,7 @@ export default class BillsPayments extends BaseController {
   * Specific bill payment schema validation.
   * @returns {ValidationChain[]}
   */
-  get specificBillPaymentValidateSchema(): ValidationChain[] {
+  private get specificBillPaymentValidateSchema(): ValidationChain[] {
    return [param('id').exists().isNumeric().toInt()];
  }

@@ -137,7 +137,7 @@ export default class BillsPayments extends BaseController {
   * Bills payment list validation schema.
   * @returns {ValidationChain[]}
   */
-  get listingValidationSchema(): ValidationChain[] {
+  private get listingValidationSchema(): ValidationChain[] {
    return [
      query('custom_view_id').optional().isNumeric().toInt(),
      query('stringified_filter_roles').optional().isJSON(),
@@ -154,7 +154,7 @@ export default class BillsPayments extends BaseController {
   * @param {Request} req -
   * @param {Response} res -
   */
-  async getBillPaymentNewPageEntries(req: Request, res: Response) {
+  private async getBillPaymentNewPageEntries(req: Request, res: Response) {
    const { tenantId } = req;
    const { vendorId } = this.matchedQueryData(req);

@@ -174,7 +174,7 @@ export default class BillsPayments extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async getBillPaymentEditPage(
+  private async getBillPaymentEditPage(
    req: Request,
    res: Response,
    next: NextFunction
@@ -205,16 +205,19 @@ export default class BillsPayments extends BaseController {
   * @param {Response} res
   * @param {Response} res
   */
-  async createBillPayment(req: Request, res: Response, next: NextFunction) {
+  private async createBillPayment(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const billPaymentDTO = this.matchedBodyData(req);

    try {
-      const billPayment = await this.billPaymentService.createBillPayment(
+      const billPayment = await this.billPaymentsApplication.createBillPayment(
        tenantId,
        billPaymentDTO
      );
-
      return res.status(200).send({
        id: billPayment.id,
        message: 'Payment made has been created successfully.',
@@ -229,13 +232,17 @@ export default class BillsPayments extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async editBillPayment(req: Request, res: Response, next: NextFunction) {
+  private async editBillPayment(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const billPaymentDTO = this.matchedBodyData(req);
    const { id: billPaymentId } = req.params;

    try {
-      const paymentMade = await this.billPaymentService.editBillPayment(
+      const paymentMade = await this.billPaymentsApplication.editBillPayment(
        tenantId,
        billPaymentId,
        billPaymentDTO
@@ -256,12 +263,19 @@ export default class BillsPayments extends BaseController {
   * @param {Response} res -
   * @return {Response} res -
   */
-  async deleteBillPayment(req: Request, res: Response, next: NextFunction) {
+  private async deleteBillPayment(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: billPaymentId } = req.params;

    try {
-      await this.billPaymentService.deleteBillPayment(tenantId, billPaymentId);
+      await this.billPaymentsApplication.deleteBillPayment(
+        tenantId,
+        billPaymentId
+      );

      return res.status(200).send({
        id: billPaymentId,
@@ -277,16 +291,19 @@ export default class BillsPayments extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async getBillPayment(req: Request, res: Response, next: NextFunction) {
+  private async getBillPayment(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: billPaymentId } = req.params;

    try {
-      const billPayment = await this.billPaymentService.getBillPayment(
+      const billPayment = await this.billPaymentsApplication.getBillPayment(
        tenantId,
        billPaymentId
      );
-
      return res.status(200).send({
        bill_payment: this.transfromToResponse(billPayment),
      });
@@ -301,12 +318,16 @@ export default class BillsPayments extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async getPaymentBills(req: Request, res: Response, next: NextFunction) {
+  private async getPaymentBills(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: billPaymentId } = req.params;

    try {
-      const bills = await this.billPaymentService.getPaymentBills(
+      const bills = await this.billPaymentsApplication.getPaymentBills(
        tenantId,
        billPaymentId
      );
@@ -322,7 +343,11 @@ export default class BillsPayments extends BaseController {
   * @param {Response} res -
   * @return {Response}
   */
-  async getBillsPayments(req: Request, res: Response, next: NextFunction) {
+  private async getBillsPayments(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const billPaymentsFilter = {
      page: 1,
@@ -335,7 +360,7 @@ export default class BillsPayments extends BaseController {

    try {
      const { billPayments, pagination, filterMeta } =
-        await this.billPaymentService.listBillPayments(
+        await this.billPaymentsApplication.getBillPayments(
          tenantId,
          billPaymentsFilter
        );
@@ -357,7 +382,7 @@ export default class BillsPayments extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  handleServiceError(
+  private handleServiceError(
    error: Error,
    req: Request,
    res: Response,
--- a/packages/server/src/api/controllers/Sales/PaymentReceives.ts
+++ b/packages/server/src/api/controllers/Sales/PaymentReceives.ts
@@ -1,42 +1,29 @@
+import { Inject, Service } from 'typedi';
 import { Router, Request, Response, NextFunction } from 'express';
 import { check, param, query, ValidationChain } from 'express-validator';
-import { Inject, Service } from 'typedi';
 import {
  AbilitySubject,
  IPaymentReceiveDTO,
  PaymentReceiveAction,
-  SaleInvoiceAction,
 } from '@/interfaces';
 import BaseController from '@/api/controllers/BaseController';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
-import PaymentReceiveService from '@/services/Sales/PaymentReceives/PaymentsReceives';
 import PaymentReceivesPages from '@/services/Sales/PaymentReceives/PaymentReceivesPages';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
-import { ServiceError } from '@/exceptions';
-import PaymentReceiveNotifyBySms from '@/services/Sales/PaymentReceives/PaymentReceiveSmsNotify';
+import { PaymentReceivesApplication } from '@/services/Sales/PaymentReceives/PaymentReceivesApplication';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
-import GetPaymentReceivePdf from '@/services/Sales/PaymentReceives/GetPaymentReeceivePdf';
+import { ServiceError } from '@/exceptions';

-/**
- * Payments receives controller.
- * @service
- */
@Service()
 export default class PaymentReceivesController extends BaseController {
  @Inject()
-  paymentReceiveService: PaymentReceiveService;
+  private paymentReceiveApplication: PaymentReceivesApplication;

  @Inject()
-  PaymentReceivesPages: PaymentReceivesPages;
+  private PaymentReceivesPages: PaymentReceivesPages;

  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  paymentReceiveSmsNotify: PaymentReceiveNotifyBySms;
-
-  @Inject()
-  paymentReceivePdf: GetPaymentReceivePdf;
+  private dynamicListService: DynamicListingService;

  /**
   * Router constructor.
@@ -137,7 +124,7 @@ export default class PaymentReceivesController extends BaseController {
   * Payment receive schema.
   * @return {Array}
   */
-  get paymentReceiveSchema(): ValidationChain[] {
+  private get paymentReceiveSchema(): ValidationChain[] {
    return [
      check('customer_id').exists().isNumeric().toInt(),
      check('exchange_rate').optional().isFloat({ gt: 0 }).toFloat(),
@@ -162,7 +149,7 @@ export default class PaymentReceivesController extends BaseController {
  /**
   * Payment receive list validation schema.
   */
-  get validatePaymentReceiveList(): ValidationChain[] {
+  private get validatePaymentReceiveList(): ValidationChain[] {
    return [
      query('stringified_filter_roles').optional().isJSON(),

@@ -181,7 +168,7 @@ export default class PaymentReceivesController extends BaseController {
  /**
   * Validate payment receive parameters.
   */
-  get paymentReceiveValidation() {
+  private get paymentReceiveValidation() {
    return [param('id').exists().isNumeric().toInt()];
  }

@@ -189,14 +176,14 @@ export default class PaymentReceivesController extends BaseController {
   * New payment receive validation schema.
   * @return {Array}
   */
-  get newPaymentReceiveValidation() {
+  private get newPaymentReceiveValidation() {
    return [...this.paymentReceiveSchema];
  }

  /**
   * Edit payment receive validation.
   */
-  get editPaymentReceiveValidation() {
+  private get editPaymentReceiveValidation() {
    return [
      param('id').exists().isNumeric().toInt(),
      ...this.paymentReceiveSchema,
@@ -209,13 +196,17 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Response} res
   * @return {Response}
   */
-  async newPaymentReceive(req: Request, res: Response, next: NextFunction) {
+  private async newPaymentReceive(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const paymentReceive: IPaymentReceiveDTO = this.matchedBodyData(req);

    try {
      const storedPaymentReceive =
-        await this.paymentReceiveService.createPaymentReceive(
+        await this.paymentReceiveApplication.createPaymentReceive(
          tenantId,
          paymentReceive,
          user
@@ -235,14 +226,18 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Response} res
   * @return {Response}
   */
-  async editPaymentReceive(req: Request, res: Response, next: NextFunction) {
+  private async editPaymentReceive(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const { id: paymentReceiveId } = req.params;

    const paymentReceive: IPaymentReceiveDTO = this.matchedBodyData(req);

    try {
-      await this.paymentReceiveService.editPaymentReceive(
+      await this.paymentReceiveApplication.editPaymentReceive(
        tenantId,
        paymentReceiveId,
        paymentReceive,
@@ -262,17 +257,20 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async deletePaymentReceive(req: Request, res: Response, next: NextFunction) {
+  private async deletePaymentReceive(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const { id: paymentReceiveId } = req.params;

    try {
-      await this.paymentReceiveService.deletePaymentReceive(
+      await this.paymentReceiveApplication.deletePaymentReceive(
        tenantId,
        paymentReceiveId,
        user
      );
-
      return res.status(200).send({
        id: paymentReceiveId,
        message: 'The payment receive has been deleted successfully',
@@ -288,7 +286,7 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async getPaymentReceiveInvoices(
+  private async getPaymentReceiveInvoices(
    req: Request,
    res: Response,
    next: NextFunction
@@ -298,7 +296,7 @@ export default class PaymentReceivesController extends BaseController {

    try {
      const saleInvoices =
-        await this.paymentReceiveService.getPaymentReceiveInvoices(
+        await this.paymentReceiveApplication.getPaymentReceiveInvoices(
          tenantId,
          paymentReceiveId
        );
@@ -315,7 +313,11 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Response} res
   * @return {Response}
   */
-  async getPaymentReceiveList(req: Request, res: Response, next: NextFunction) {
+  private async getPaymentReceiveList(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const filter = {
      sortOrder: 'desc',
@@ -327,7 +329,10 @@ export default class PaymentReceivesController extends BaseController {

    try {
      const { paymentReceives, pagination, filterMeta } =
-        await this.paymentReceiveService.listPaymentReceives(tenantId, filter);
+        await this.paymentReceiveApplication.getPaymentReceives(
+          tenantId,
+          filter
+        );

      return res.status(200).send({
        payment_receives: this.transfromToResponse(paymentReceives),
@@ -344,7 +349,7 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Request} req - Request.
   * @param {Response} res - Response.
   */
-  async getPaymentReceiveNewPageEntries(
+  private async getPaymentReceiveNewPageEntries(
    req: Request,
    res: Response,
    next: NextFunction
@@ -371,7 +376,7 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Request} req -
   * @param {Response} res -
   */
-  async getPaymentReceiveEditPage(
+  private async getPaymentReceiveEditPage(
    req: Request,
    res: Response,
    next: NextFunction
@@ -402,15 +407,20 @@ export default class PaymentReceivesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async getPaymentReceive(req: Request, res: Response, next: NextFunction) {
+  private async getPaymentReceive(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: paymentReceiveId } = req.params;

    try {
-      const paymentReceive = await this.paymentReceiveService.getPaymentReceive(
-        tenantId,
-        paymentReceiveId
-      );
+      const paymentReceive =
+        await this.paymentReceiveApplication.getPaymentReceive(
+          tenantId,
+          paymentReceiveId
+        );

      const ACCEPT_TYPE = {
        APPLICATION_PDF: 'application/pdf',
@@ -423,10 +433,11 @@ export default class PaymentReceivesController extends BaseController {
          });
        },
        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent = await this.paymentReceivePdf.getPaymentReceivePdf(
-            tenantId,
-            paymentReceive
-          );
+          const pdfContent =
+            await this.paymentReceiveApplication.getPaymentReceivePdf(
+              tenantId,
+              paymentReceive
+            );
          res.set({
            'Content-Type': 'application/pdf',
            'Content-Length': pdfContent.length,
@@ -454,10 +465,11 @@ export default class PaymentReceivesController extends BaseController {
    const { id: paymentReceiveId } = req.params;

    try {
-      const paymentReceive = await this.paymentReceiveSmsNotify.notifyBySms(
-        tenantId,
-        paymentReceiveId
-      );
+      const paymentReceive =
+        await this.paymentReceiveApplication.notifyPaymentBySms(
+          tenantId,
+          paymentReceiveId
+        );
      return res.status(200).send({
        id: paymentReceive.id,
        message: 'The payment notification has been sent successfully.',
@@ -482,10 +494,11 @@ export default class PaymentReceivesController extends BaseController {
    const { id: paymentReceiveId } = req.params;

    try {
-      const smsDetails = await this.paymentReceiveSmsNotify.smsDetails(
-        tenantId,
-        paymentReceiveId
-      );
+      const smsDetails =
+        await this.paymentReceiveApplication.getPaymentSmsDetails(
+          tenantId,
+          paymentReceiveId
+        );
      return res.status(200).send({
        data: smsDetails,
      });
--- a/packages/server/src/api/controllers/Sales/SalesEstimates.ts
+++ b/packages/server/src/api/controllers/Sales/SalesEstimates.ts
@@ -1,20 +1,17 @@
 import { Router, Request, Response, NextFunction } from 'express';
-import { check, param, query, matchedData } from 'express-validator';
+import { check, param, query } from 'express-validator';
 import { Inject, Service } from 'typedi';
 import {
  AbilitySubject,
  ISaleEstimateDTO,
  SaleEstimateAction,
-  SaleInvoiceAction,
 } from '@/interfaces';
 import BaseController from '@/api/controllers/BaseController';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
-import SaleEstimateService from '@/services/Sales/SalesEstimate';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
 import { ServiceError } from '@/exceptions';
-import SaleEstimatesPdfService from '@/services/Sales/Estimates/SaleEstimatesPdf';
-import SaleEstimateNotifyBySms from '@/services/Sales/Estimates/SaleEstimateSmsNotify';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
+import { SaleEstimatesApplication } from '@/services/Sales/Estimates/SaleEstimatesApplication';

 const ACCEPT_TYPE = {
  APPLICATION_PDF: 'application/pdf',
@@ -23,21 +20,15 @@ const ACCEPT_TYPE = {
@Service()
 export default class SalesEstimatesController extends BaseController {
  @Inject()
-  saleEstimateService: SaleEstimateService;
+  private saleEstimatesApplication: SaleEstimatesApplication;

  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  saleEstimatesPdf: SaleEstimatesPdfService;
-
-  @Inject()
-  saleEstimateNotifySms: SaleEstimateNotifyBySms;
+  private dynamicListService: DynamicListingService;

  /**
   * Router constructor.
   */
-  router() {
+  public router() {
    const router = Router();

    router.post(
@@ -136,7 +127,7 @@ export default class SalesEstimatesController extends BaseController {
  /**
   * Estimate validation schema.
   */
-  get estimateValidationSchema() {
+  private get estimateValidationSchema() {
    return [
      check('customer_id').exists().isNumeric().toInt(),
      check('estimate_date').exists().isISO8601().toDate(),
@@ -177,14 +168,14 @@ export default class SalesEstimatesController extends BaseController {
  /**
   * Specific sale estimate validation schema.
   */
-  get validateSpecificEstimateSchema() {
+  private get validateSpecificEstimateSchema() {
    return [param('id').exists().isNumeric().toInt()];
  }

  /**
   * Sales estimates list validation schema.
   */
-  get validateEstimateListSchema() {
+  private get validateEstimateListSchema() {
    return [
      query('view_slug').optional().isString().trim(),
      query('stringified_filter_roles').optional().isJSON(),
@@ -202,15 +193,16 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Response} res -
   * @return {Response} res -
   */
-  async newEstimate(req: Request, res: Response, next: NextFunction) {
+  private async newEstimate(req: Request, res: Response, next: NextFunction) {
    const { tenantId } = req;
    const estimateDTO: ISaleEstimateDTO = this.matchedBodyData(req);

    try {
-      const storedEstimate = await this.saleEstimateService.createEstimate(
-        tenantId,
-        estimateDTO
-      );
+      const storedEstimate =
+        await this.saleEstimatesApplication.createSaleEstimate(
+          tenantId,
+          estimateDTO
+        );

      return res.status(200).send({
        id: storedEstimate.id,
@@ -226,19 +218,18 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async editEstimate(req: Request, res: Response, next: NextFunction) {
+  private async editEstimate(req: Request, res: Response, next: NextFunction) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;
    const estimateDTO: ISaleEstimateDTO = this.matchedBodyData(req);

    try {
      // Update estimate with associated estimate entries.
-      await this.saleEstimateService.editEstimate(
+      await this.saleEstimatesApplication.editSaleEstimate(
        tenantId,
        estimateId,
        estimateDTO
      );
-
      return res.status(200).send({
        id: estimateId,
        message: 'The sale estimate has been created successfully.',
@@ -253,13 +244,19 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async deleteEstimate(req: Request, res: Response, next: NextFunction) {
+  private async deleteEstimate(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;

    try {
-      await this.saleEstimateService.deleteEstimate(tenantId, estimateId);
-
+      await this.saleEstimatesApplication.deleteSaleEstimate(
+        tenantId,
+        estimateId
+      );
      return res.status(200).send({
        id: estimateId,
        message: 'The sale estimate has been deleted successfully.',
@@ -274,13 +271,19 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async deliverSaleEstimate(req: Request, res: Response, next: NextFunction) {
+  private async deliverSaleEstimate(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;

    try {
-      await this.saleEstimateService.deliverSaleEstimate(tenantId, estimateId);
-
+      await this.saleEstimatesApplication.deliverSaleEstimate(
+        tenantId,
+        estimateId
+      );
      return res.status(200).send({
        id: estimateId,
        message: 'The sale estimate has been delivered successfully.',
@@ -296,12 +299,19 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async approveSaleEstimate(req: Request, res: Response, next: NextFunction) {
+  private async approveSaleEstimate(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;

    try {
-      await this.saleEstimateService.approveSaleEstimate(tenantId, estimateId);
+      await this.saleEstimatesApplication.approveSaleEstimate(
+        tenantId,
+        estimateId
+      );

      return res.status(200).send({
        id: estimateId,
@@ -318,12 +328,19 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async rejectSaleEstimate(req: Request, res: Response, next: NextFunction) {
+  private async rejectSaleEstimate(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;

    try {
-      await this.saleEstimateService.rejectSaleEstimate(tenantId, estimateId);
+      await this.saleEstimatesApplication.rejectSaleEstimate(
+        tenantId,
+        estimateId
+      );

      return res.status(200).send({
        id: estimateId,
@@ -340,12 +357,12 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async getEstimate(req: Request, res: Response, next: NextFunction) {
+  private async getEstimate(req: Request, res: Response, next: NextFunction) {
    const { id: estimateId } = req.params;
    const { tenantId } = req;

    try {
-      const estimate = await this.saleEstimateService.getEstimate(
+      const estimate = await this.saleEstimatesApplication.getSaleEstimate(
        tenantId,
        estimateId
      );
@@ -357,10 +374,11 @@ export default class SalesEstimatesController extends BaseController {
        },
        // PDF content type.
        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent = await this.saleEstimatesPdf.saleEstimatePdf(
-            tenantId,
-            estimate
-          );
+          const pdfContent =
+            await this.saleEstimatesApplication.getSaleEstimatePdf(
+              tenantId,
+              estimate
+            );
          res.set({
            'Content-Type': 'application/pdf',
            'Content-Length': pdfContent.length,
@@ -378,7 +396,7 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async getEstimates(req: Request, res: Response, next: NextFunction) {
+  private async getEstimates(req: Request, res: Response, next: NextFunction) {
    const { tenantId } = req;
    const filter = {
      sortOrder: 'desc',
@@ -390,7 +408,7 @@ export default class SalesEstimatesController extends BaseController {

    try {
      const { salesEstimates, pagination, filterMeta } =
-        await this.saleEstimateService.estimatesList(tenantId, filter);
+        await this.saleEstimatesApplication.getSaleEstimates(tenantId, filter);

      res.format({
        [ACCEPT_TYPE.APPLICATION_JSON]: () => {
@@ -408,7 +426,7 @@ export default class SalesEstimatesController extends BaseController {
    }
  }

-  public saleEstimateNotifyBySms = async (
+  private saleEstimateNotifyBySms = async (
    req: Request,
    res: Response,
    next: NextFunction
@@ -417,10 +435,11 @@ export default class SalesEstimatesController extends BaseController {
    const { id: estimateId } = req.params;

    try {
-      const saleEstimate = await this.saleEstimateNotifySms.notifyBySms(
-        tenantId,
-        estimateId
-      );
+      const saleEstimate =
+        await this.saleEstimatesApplication.notifySaleEstimateBySms(
+          tenantId,
+          estimateId
+        );
      return res.status(200).send({
        id: saleEstimate.id,
        message:
@@ -437,7 +456,7 @@ export default class SalesEstimatesController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  public saleEstimateSmsDetails = async (
+  private saleEstimateSmsDetails = async (
    req: Request,
    res: Response,
    next: NextFunction
@@ -446,10 +465,11 @@ export default class SalesEstimatesController extends BaseController {
    const { id: estimateId } = req.params;

    try {
-      const estimateSmsDetails = await this.saleEstimateNotifySms.smsDetails(
-        tenantId,
-        estimateId
-      );
+      const estimateSmsDetails =
+        await this.saleEstimatesApplication.getSaleEstimateSmsDetails(
+          tenantId,
+          estimateId
+        );
      return res.status(200).send({
        data: estimateSmsDetails,
      });
--- a/packages/server/src/api/controllers/Sales/SalesInvoices.ts
+++ b/packages/server/src/api/controllers/Sales/SalesInvoices.ts
@@ -3,7 +3,6 @@ import { check, param, query } from 'express-validator';
 import { Service, Inject } from 'typedi';
 import BaseController from '../BaseController';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
-import SaleInvoiceService from '@/services/Sales/SalesInvoices';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
 import { ServiceError } from '@/exceptions';
 import {
@@ -12,11 +11,8 @@ import {
  SaleInvoiceAction,
  AbilitySubject,
 } from '@/interfaces';
-import SaleInvoicePdf from '@/services/Sales/SaleInvoicePdf';
-import SaleInvoiceWriteoff from '@/services/Sales/SaleInvoiceWriteoff';
-import SaleInvoiceNotifyBySms from '@/services/Sales/SaleInvoiceNotifyBySms';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
-import InvoicePaymentsService from '@/services/Sales/Invoices/InvoicePaymentsService';
+import { SaleInvoiceApplication } from '@/services/Sales/Invoices/SaleInvoicesApplication';

 const ACCEPT_TYPE = {
  APPLICATION_PDF: 'application/pdf',
@@ -25,27 +21,15 @@ const ACCEPT_TYPE = {
@Service()
 export default class SaleInvoicesController extends BaseController {
  @Inject()
-  saleInvoiceService: SaleInvoiceService;
+  private saleInvoiceApplication: SaleInvoiceApplication;

  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  saleInvoicePdf: SaleInvoicePdf;
-
-  @Inject()
-  saleInvoiceWriteoff: SaleInvoiceWriteoff;
-
-  @Inject()
-  saleInvoiceSmsNotify: SaleInvoiceNotifyBySms;
-
-  @Inject()
-  invoicePaymentsSerivce: InvoicePaymentsService;
+  private dynamicListService: DynamicListingService;

  /**
   * Router constructor.
   */
-  router() {
+  public router() {
    const router = Router();

    router.post(
@@ -167,7 +151,7 @@ export default class SaleInvoicesController extends BaseController {
  /**
   * Sale invoice validation schema.
   */
-  get saleInvoiceValidationSchema() {
+  private get saleInvoiceValidationSchema() {
    return [
      check('customer_id').exists().isNumeric().toInt(),
      check('invoice_date').exists().isISO8601().toDate(),
@@ -227,14 +211,14 @@ export default class SaleInvoicesController extends BaseController {
  /**
   * Specific sale invoice validation schema.
   */
-  get specificSaleInvoiceValidation() {
+  private get specificSaleInvoiceValidation() {
    return [param('id').exists().isNumeric().toInt()];
  }

  /**
   * Sales invoices list validation schema.
   */
-  get saleInvoiceListValidationSchema() {
+  private get saleInvoiceListValidationSchema() {
    return [
      query('view_slug').optional({ nullable: true }).isString().trim(),
      query('stringified_filter_roles').optional().isJSON(),
@@ -249,7 +233,7 @@ export default class SaleInvoicesController extends BaseController {
  /**
   * Due sale invoice list validation schema.
   */
-  get dueSalesInvoicesListValidationSchema() {
+  private get dueSalesInvoicesListValidationSchema() {
    return [query('customer_id').optional().isNumeric().toInt()];
  }

@@ -259,17 +243,22 @@ export default class SaleInvoicesController extends BaseController {
   * @param {Response} res
   * @param {Function} next
   */
-  async newSaleInvoice(req: Request, res: Response, next: NextFunction) {
+  private async newSaleInvoice(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const saleInvoiceDTO: ISaleInvoiceCreateDTO = this.matchedBodyData(req);

    try {
      // Creates a new sale invoice with associated entries.
-      const storedSaleInvoice = await this.saleInvoiceService.createSaleInvoice(
-        tenantId,
-        saleInvoiceDTO,
-        user
-      );
+      const storedSaleInvoice =
+        await this.saleInvoiceApplication.createSaleInvoice(
+          tenantId,
+          saleInvoiceDTO,
+          user
+        );
      return res.status(200).send({
        id: storedSaleInvoice.id,
        message: 'The sale invoice has been created successfully.',
@@ -285,14 +274,18 @@ export default class SaleInvoicesController extends BaseController {
   * @param {Response} res
   * @param {Function} next
   */
-  async editSaleInvoice(req: Request, res: Response, next: NextFunction) {
+  private async editSaleInvoice(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const { id: saleInvoiceId } = req.params;
    const saleInvoiceOTD: ISaleInvoiceDTO = this.matchedBodyData(req);

    try {
      // Update the given sale invoice details.
-      await this.saleInvoiceService.editSaleInvoice(
+      await this.saleInvoiceApplication.editSaleInvoice(
        tenantId,
        saleInvoiceId,
        saleInvoiceOTD,
@@ -313,12 +306,16 @@ export default class SaleInvoicesController extends BaseController {
   * @param {Response} res -
   * @param {NextFunction} next -
   */
-  async deliverSaleInvoice(req: Request, res: Response, next: NextFunction) {
+  private async deliverSaleInvoice(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId, user } = req;
    const { id: saleInvoiceId } = req.params;

    try {
-      await this.saleInvoiceService.deliverSaleInvoice(
+      await this.saleInvoiceApplication.deliverSaleInvoice(
        tenantId,
        saleInvoiceId,
        user
@@ -338,13 +335,17 @@ export default class SaleInvoicesController extends BaseController {
   * @param {Response} res
   * @param {Function} next
   */
-  async deleteSaleInvoice(req: Request, res: Response, next: NextFunction) {
+  private async deleteSaleInvoice(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: saleInvoiceId } = req.params;
    const { tenantId, user } = req;

    try {
      // Deletes the sale invoice with associated entries and journal transaction.
-      await this.saleInvoiceService.deleteSaleInvoice(
+      await this.saleInvoiceApplication.deleteSaleInvoice(
        tenantId,
        saleInvoiceId,
        user
@@ -364,12 +365,16 @@ export default class SaleInvoicesController extends BaseController {
   * @param {Request} req - Request object.
   * @param {Response} res - Response object.
   */
-  async getSaleInvoice(req: Request, res: Response, next: NextFunction) {
+  private async getSaleInvoice(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { id: saleInvoiceId } = req.params;
    const { tenantId, user } = req;

    try {
-      const saleInvoice = await this.saleInvoiceService.getSaleInvoice(
+      const saleInvoice = await this.saleInvoiceApplication.getSaleInvoice(
        tenantId,
        saleInvoiceId,
        user
@@ -384,7 +389,7 @@ export default class SaleInvoicesController extends BaseController {
        },
        // PDF content type.
        [ACCEPT_TYPE.APPLICATION_PDF]: async () => {
-          const pdfContent = await this.saleInvoicePdf.saleInvoicePdf(
+          const pdfContent = await this.saleInvoiceApplication.saleInvoicePdf(
            tenantId,
            saleInvoice
          );
@@ -420,7 +425,7 @@ export default class SaleInvoicesController extends BaseController {
    };
    try {
      const { salesInvoices, filterMeta, pagination } =
-        await this.saleInvoiceService.salesInvoicesList(tenantId, filter);
+        await this.saleInvoiceApplication.getSaleInvoices(tenantId, filter);

      return res.status(200).send({
        sales_invoices: this.transfromToResponse(salesInvoices),
@@ -448,10 +453,11 @@ export default class SaleInvoicesController extends BaseController {
    const { customerId } = this.matchedQueryData(req);

    try {
-      const salesInvoices = await this.saleInvoiceService.getPayableInvoices(
-        tenantId,
-        customerId
-      );
+      const salesInvoices =
+        await this.saleInvoiceApplication.getReceivableSaleInvoices(
+          tenantId,
+          customerId
+        );
      return res.status(200).send({
        sales_invoices: this.transfromToResponse(salesInvoices),
      });
@@ -477,7 +483,7 @@ export default class SaleInvoicesController extends BaseController {
    const writeoffDTO = this.matchedBodyData(req);

    try {
-      const saleInvoice = await this.saleInvoiceWriteoff.writeOff(
+      const saleInvoice = await this.saleInvoiceApplication.writeOff(
        tenantId,
        invoiceId,
        writeoffDTO
@@ -485,7 +491,7 @@ export default class SaleInvoicesController extends BaseController {

      return res.status(200).send({
        id: saleInvoice.id,
-        message: 'The given sale invoice has been writte-off successfully.',
+        message: 'The given sale invoice has been written-off successfully.',
      });
    } catch (error) {
      next(error);
@@ -507,7 +513,7 @@ export default class SaleInvoicesController extends BaseController {
    const { id: invoiceId } = req.params;

    try {
-      const saleInvoice = await this.saleInvoiceWriteoff.cancelWrittenoff(
+      const saleInvoice = await this.saleInvoiceApplication.cancelWrittenoff(
        tenantId,
        invoiceId
      );
@@ -538,11 +544,12 @@ export default class SaleInvoicesController extends BaseController {
    const invoiceNotifySmsDTO = this.matchedBodyData(req);

    try {
-      const saleInvoice = await this.saleInvoiceSmsNotify.notifyBySms(
-        tenantId,
-        invoiceId,
-        invoiceNotifySmsDTO.notificationKey
-      );
+      const saleInvoice =
+        await this.saleInvoiceApplication.notifySaleInvoiceBySms(
+          tenantId,
+          invoiceId,
+          invoiceNotifySmsDTO.notificationKey
+        );
      return res.status(200).send({
        id: saleInvoice.id,
        message:
@@ -569,11 +576,12 @@ export default class SaleInvoicesController extends BaseController {
    const smsDetailsDTO = this.matchedQueryData(req);

    try {
-      const invoiceSmsDetails = await this.saleInvoiceSmsNotify.smsDetails(
-        tenantId,
-        invoiceId,
-        smsDetailsDTO
-      );
+      const invoiceSmsDetails =
+        await this.saleInvoiceApplication.getSaleInvoiceSmsDetails(
+          tenantId,
+          invoiceId,
+          smsDetailsDTO
+        );
      return res.status(200).send({
        data: invoiceSmsDetails,
      });
@@ -599,7 +607,7 @@ export default class SaleInvoicesController extends BaseController {

    try {
      const invoicePayments =
-        await this.invoicePaymentsSerivce.getInvoicePayments(
+        await this.saleInvoiceApplication.getInvoicePayments(
          tenantId,
          invoiceId
        );
--- a/packages/server/src/api/controllers/Sales/SalesReceipts.ts
+++ b/packages/server/src/api/controllers/Sales/SalesReceipts.ts
@@ -2,34 +2,26 @@ import { Router, Request, Response, NextFunction } from 'express';
 import { check, param, query } from 'express-validator';
 import { Inject, Service } from 'typedi';
 import asyncMiddleware from '@/api/middleware/asyncMiddleware';
-import SaleReceiptService from '@/services/Sales/SalesReceipts';
-import SaleReceiptsPdfService from '@/services/Sales/Receipts/SaleReceiptsPdfService';
 import BaseController from '../BaseController';
 import { ISaleReceiptDTO } from '@/interfaces/SaleReceipt';
 import { ServiceError } from '@/exceptions';
 import DynamicListingService from '@/services/DynamicListing/DynamicListService';
-import SaleReceiptNotifyBySms from '@/services/Sales/SaleReceiptNotifyBySms';
 import CheckPolicies from '@/api/middleware/CheckPolicies';
 import { AbilitySubject, SaleReceiptAction } from '@/interfaces';
+import { SaleReceiptApplication } from '@/services/Sales/Receipts/SaleReceiptApplication';

@Service()
 export default class SalesReceiptsController extends BaseController {
  @Inject()
-  saleReceiptService: SaleReceiptService;
+  private saleReceiptsApplication: SaleReceiptApplication;

  @Inject()
-  saleReceiptsPdf: SaleReceiptsPdfService;
-
-  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  saleReceiptSmsNotify: SaleReceiptNotifyBySms;
+  private dynamicListService: DynamicListingService;

  /**
   * Router constructor.
   */
-  router() {
+  public router() {
    const router = Router();

    router.post(
@@ -105,7 +97,7 @@ export default class SalesReceiptsController extends BaseController {
   * Sales receipt validation schema.
   * @return {Array}
   */
-  get salesReceiptsValidationSchema() {
+  private get salesReceiptsValidationSchema() {
    return [
      check('customer_id').exists().isNumeric().toInt(),
      check('exchange_rate').optional().isFloat({ gt: 0 }).toFloat(),
@@ -146,14 +138,14 @@ export default class SalesReceiptsController extends BaseController {
  /**
   * Specific sale receipt validation schema.
   */
-  get specificReceiptValidationSchema() {
+  private get specificReceiptValidationSchema() {
    return [param('id').exists().isNumeric().toInt()];
  }

  /**
   * List sales receipts validation schema.
   */
-  get listSalesReceiptsValidationSchema() {
+  private get listSalesReceiptsValidationSchema() {
    return [
      query('view_slug').optional().isString().trim(),
      query('stringified_filter_roles').optional().isJSON(),
@@ -170,16 +162,21 @@ export default class SalesReceiptsController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async newSaleReceipt(req: Request, res: Response, next: NextFunction) {
+  private async newSaleReceipt(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const saleReceiptDTO: ISaleReceiptDTO = this.matchedBodyData(req);

    try {
      // Store the given sale receipt details with associated entries.
-      const storedSaleReceipt = await this.saleReceiptService.createSaleReceipt(
-        tenantId,
-        saleReceiptDTO
-      );
+      const storedSaleReceipt =
+        await this.saleReceiptsApplication.createSaleReceipt(
+          tenantId,
+          saleReceiptDTO
+        );
      return res.status(200).send({
        id: storedSaleReceipt.id,
        message: 'Sale receipt has been created successfully.',
@@ -194,13 +191,20 @@ export default class SalesReceiptsController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async deleteSaleReceipt(req: Request, res: Response, next: NextFunction) {
+  private async deleteSaleReceipt(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: saleReceiptId } = req.params;

    try {
      // Deletes the sale receipt.
-      await this.saleReceiptService.deleteSaleReceipt(tenantId, saleReceiptId);
+      await this.saleReceiptsApplication.deleteSaleReceipt(
+        tenantId,
+        saleReceiptId
+      );

      return res.status(200).send({
        id: saleReceiptId,
@@ -217,14 +221,18 @@ export default class SalesReceiptsController extends BaseController {
   * @param {Request} req -
   * @param {Response} res -
   */
-  async editSaleReceipt(req: Request, res: Response, next: NextFunction) {
+  private async editSaleReceipt(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: saleReceiptId } = req.params;
    const saleReceipt = this.matchedBodyData(req);

    try {
      // Update the given sale receipt details.
-      await this.saleReceiptService.editSaleReceipt(
+      await this.saleReceiptsApplication.editSaleReceipt(
        tenantId,
        saleReceiptId,
        saleReceipt
@@ -244,13 +252,20 @@ export default class SalesReceiptsController extends BaseController {
   * @param {Response} res
   * @param {NextFunction} next
   */
-  async closeSaleReceipt(req: Request, res: Response, next: NextFunction) {
+  private async closeSaleReceipt(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const { id: saleReceiptId } = req.params;

    try {
      // Update the given sale receipt details.
-      await this.saleReceiptService.closeSaleReceipt(tenantId, saleReceiptId);
+      await this.saleReceiptsApplication.closeSaleReceipt(
+        tenantId,
+        saleReceiptId
+      );
      return res.status(200).send({
        id: saleReceiptId,
        message: 'Sale receipt has been closed successfully.',
@@ -265,7 +280,11 @@ export default class SalesReceiptsController extends BaseController {
   * @param {Request} req
   * @param {Response} res
   */
-  async getSalesReceipts(req: Request, res: Response, next: NextFunction) {
+  private async getSalesReceipts(
+    req: Request,
+    res: Response,
+    next: NextFunction
+  ) {
    const { tenantId } = req;
    const filter = {
      sortOrder: 'desc',
@@ -274,10 +293,9 @@ export default class SalesReceiptsController extends BaseController {
      pageSize: 12,
      ...this.matchedQueryData(req),
    };
-
    try {
      const { data, pagination, filterMeta } =
-        await this.saleReceiptService.salesReceiptsList(tenantId, filter);
+        await this.saleReceiptsApplication.getSaleReceipts(tenantId, filter);

      const response = this.transfromToResponse({
        data,
@@ -301,11 +319,10 @@ export default class SalesReceiptsController extends BaseController {
    const { tenantId } = req;

    try {
-      const saleReceipt = await this.saleReceiptService.getSaleReceipt(
+      const saleReceipt = await this.saleReceiptsApplication.getSaleReceipt(
        tenantId,
        saleReceiptId
      );
-
      res.format({
        'application/json': () => {
          return res
@@ -313,10 +330,11 @@ export default class SalesReceiptsController extends BaseController {
            .send(this.transfromToResponse({ saleReceipt }));
        },
        'application/pdf': async () => {
-          const pdfContent = await this.saleReceiptsPdf.saleReceiptPdf(
-            tenantId,
-            saleReceipt
-          );
+          const pdfContent =
+            await this.saleReceiptsApplication.getSaleReceiptPdf(
+              tenantId,
+              saleReceipt
+            );
          res.set({
            'Content-Type': 'application/pdf',
            'Content-Length': pdfContent.length,
@@ -344,10 +362,11 @@ export default class SalesReceiptsController extends BaseController {
    const { id: receiptId } = req.params;

    try {
-      const saleReceipt = await this.saleReceiptSmsNotify.notifyBySms(
-        tenantId,
-        receiptId
-      );
+      const saleReceipt =
+        await this.saleReceiptsApplication.saleReceiptNotifyBySms(
+          tenantId,
+          receiptId
+        );
      return res.status(200).send({
        id: saleReceipt.id,
        message:
@@ -373,10 +392,11 @@ export default class SalesReceiptsController extends BaseController {
    const { id: receiptId } = req.params;

    try {
-      const smsDetails = await this.saleReceiptSmsNotify.smsDetails(
-        tenantId,
-        receiptId
-      );
+      const smsDetails =
+        await this.saleReceiptsApplication.getSaleReceiptSmsDetails(
+          tenantId,
+          receiptId
+        );
      return res.status(200).send({
        data: smsDetails,
      });
--- a/packages/server/src/api/controllers/Sales/index.ts
+++ b/packages/server/src/api/controllers/Sales/index.ts
@@ -1,10 +1,10 @@
 import { Router } from 'express';
 import { Container, Service } from 'typedi';
+import SalesInvoices from './SalesInvoices'
 import SalesEstimates from './SalesEstimates';
 import SalesReceipts from './SalesReceipts';
-import SalesInvoices from './SalesInvoices'
-import PaymentReceives from './PaymentReceives';
 import CreditNotes from './CreditNotes';
+import PaymentReceives from './PaymentReceives';
@Service()
 export default class SalesController {
  /**
--- a/packages/server/src/config/index.ts
+++ b/packages/server/src/config/index.ts
@@ -1,9 +1,12 @@
 import dotenv from 'dotenv';
 import path from 'path';
+import { toInteger } from 'lodash';
 import { castCommaListEnvVarToArray, parseBoolean } from '@/utils';

 dotenv.config();

+const API_RATE_LIMIT = process.env.API_RATE_LIMIT?.split(',') || [];
+
 module.exports = {
  /**
   * Your favorite port
@@ -95,16 +98,15 @@ module.exports = {
   * JWT secret.
   */
  jwtSecret: process.env.JWT_SECRET,
-  resetPasswordSeconds: 600,

  /**
   *
   */
-  customerSuccess: {
-    email: 'success@bigcapital.ly',
-    phoneNumber: '(218) 92 791 8381',
-  },
+  resetPasswordSeconds: 600,

+  /**
+   * Application base URL.
+   */
  baseURL: process.env.BASE_URL,

  /**
@@ -131,19 +133,9 @@ module.exports = {
      blockDuration: 60 * 15,
    },
    requests: {
-      points: 60,
-      duration: 60,
-      blockDuration: 60 * 10,
-    },
-  },
-
-  /**
-   * Users registeration configuration.
-   */
-  registration: {
-    countries: {
-      whitelist: ['LY'],
-      blacklist: [],
+      points: API_RATE_LIMIT[0] ? toInteger(API_RATE_LIMIT[0]) : 120,
+      duration: API_RATE_LIMIT[1] ? toInteger(API_RATE_LIMIT[1]) : 60,
+      blockDuration: API_RATE_LIMIT[2] ? toInteger(API_RATE_LIMIT[2]) : 60 * 10,
    },
  },

@@ -167,8 +159,6 @@ module.exports = {
    browserWSEndpoint: process.env.BROWSER_WS_ENDPOINT,
  },

-  protocol: '',
-  hostname: '',
  scheduleComputeItemCost: 'in 5 seconds',

  /**
--- a/packages/server/src/interfaces/Ledger.ts
+++ b/packages/server/src/interfaces/Ledger.ts
@@ -4,6 +4,8 @@ export interface ILedger {

  getEntries(): ILedgerEntry[];

+  filter(cb: (entry: ILedgerEntry) => boolean): ILedger;
+
  whereAccountId(accountId: number): ILedger;
  whereContactId(contactId: number): ILedger;
  whereFromDate(fromDate: Date | string): ILedger;
@@ -39,6 +41,8 @@ export interface ILedgerEntry {
  index: number;
  indexGroup?: number;

+  note?: string;
+
  userId?: number;
  itemId?: number;
  branchId?: number;
--- a/packages/server/src/jobs/ResetPasswordMail.ts
+++ b/packages/server/src/jobs/ResetPasswordMail.ts
@@ -1,38 +1,34 @@
-import { Container, Inject } from 'typedi';
-import AuthenticationService from '@/services/Authentication/AuthApplication';
+import { Container } from 'typedi';
+import AuthenticationMailMesssages from '@/services/Authentication/AuthenticationMailMessages';

-export default class WelcomeEmailJob {
+export default class ResetPasswordEmailJob {
  /**
   * Constructor method.
-   * @param {Agenda} agenda 
+   * @param {Agenda} agenda
   */
  constructor(agenda) {
    agenda.define(
      'reset-password-mail',
      { priority: 'high' },
-      this.handler.bind(this),
+      this.handler.bind(this)
    );
  }

  /**
   * Handle send welcome mail job.
-   * @param {Job} job 
-   * @param {Function} done 
+   * @param {Job} job
+   * @param {Function} done
   */
  public async handler(job, done: Function): Promise<void> {
    const { data } = job.attrs;
    const { user, token } = data;
-    const Logger = Container.get('logger');
-    const authService = Container.get(AuthenticationService);
+    const authService = Container.get(AuthenticationMailMesssages);

-    Logger.info(`[send_reset_password] started.`, { data });
-  
    try {
-      await authService.mailMessages.sendResetPasswordMessage(user, token);
-      Logger.info(`[send_reset_password] finished.`, { data });
-      done()
+      await authService.sendResetPasswordMessage(user, token);
+      done();
    } catch (error) {
-      Logger.error(`[send_reset_password] error.`, { data, error });
+      console.log(error);
      done(error);
    }
  }
--- a/packages/server/src/jobs/SmsNotification.ts
+++ b/packages/server/src/jobs/SmsNotification.ts
@@ -1,22 +0,0 @@
-import { Container } from 'typedi';
-
-export default class SmsNotification {
-  constructor(agenda) {
-    agenda.define('sms-notification', { priority: 'high' }, this.handler);
-  }
-
-  /**
-   *
-   * @param {Job}job
-   */
-  async handler(job) {
-    const { message, to } = job.attrs.data;
-    const smsClient = Container.get('SMSClient');
-
-    try {
-      await smsClient.sendMessage(to, message);
-    } catch (error) {
-      done(e);
-    }
-  }
-}
--- a/packages/server/src/jobs/WelcomeSMS.ts
+++ b/packages/server/src/jobs/WelcomeSMS.ts
@@ -1,35 +0,0 @@
-import { Container, Inject } from 'typedi';
-import AuthenticationService from '@/services/Authentication/AuthApplication';
-
-export default class WelcomeSMSJob {
-  /**
-   * Constructor method.
-   * @param {Agenda} agenda 
-   */
-  constructor(agenda) {
-    agenda.define('welcome-sms', { priority: 'high' }, this.handler);
-  }
-
-  /**
-   * Handle send welcome mail job.
-   * @param {Job} job 
-   * @param {Function} done 
-   */
-  public async handler(job, done: Function): Promise<void> {
-    const { tenant, user } = job.attrs.data;
-
-    const Logger = Container.get('logger');
-    const authService = Container.get(AuthenticationService);
-
-    Logger.info(`[welcome_sms] started: ${job.attrs.data}`);
-
-    try {
-      await authService.smsMessages.sendWelcomeMessage(tenant, user);
-      Logger.info(`[welcome_sms] finished`, { tenant, user });
-      done();
-    } catch (error) {
-      Logger.info(`[welcome_sms] error`, { error, tenant, user });
-      done(error);
-    }
-  }
-}
--- a/packages/server/src/jobs/WriteInvoicesJEntries.ts
+++ b/packages/server/src/jobs/WriteInvoicesJEntries.ts
@@ -1,7 +1,7 @@
 import { Container } from 'typedi';
 import events from '@/subscribers/events';
-import SalesInvoicesCost from '@/services/Sales/SalesInvoicesCost';
 import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import { SaleInvoicesCost } from '@/services/Sales/Invoices/SalesInvoicesCost';

 export default class WriteInvoicesJournalEntries {
  eventPublisher: EventPublisher;
@@ -26,7 +26,7 @@ export default class WriteInvoicesJournalEntries {
   */
  public async handler(job, done: Function): Promise<void> {
    const { startingDate, tenantId } = job.attrs.data;
-    const salesInvoicesCost = Container.get(SalesInvoicesCost);
+    const salesInvoicesCost = Container.get(SaleInvoicesCost);

    try {
      await salesInvoicesCost.writeCostLotsGLEntries(tenantId, startingDate);
--- a/packages/server/src/jobs/welcomeEmail.ts
+++ b/packages/server/src/jobs/welcomeEmail.ts
@@ -1,39 +0,0 @@
-import { Container } from 'typedi';
-import AuthenticationService from '@/services/Authentication/AuthApplication';
-
-export default class WelcomeEmailJob {
-  /**
-   * Constructor method.
-   * @param {Agenda} agenda - 
-   */
-  constructor(agenda) {
-    // Welcome mail and SMS message.
-    agenda.define(
-      'welcome-email',
-      { priority: 'high' },
-      this.handler.bind(this),
-    );
-  }
-
-  /**
-   * Handle send welcome mail job.
-   * @param {Job} job 
-   * @param {Function} done 
-   */
-  public async handler(job, done: Function): Promise<void> {
-    const { organizationId, user } = job.attrs.data;
-    const Logger: any = Container.get('logger');
-    const authService = Container.get(AuthenticationService);
-
-    Logger.info(`[welcome_mail] started: ${job.attrs.data}`);
-
-    try {
-      await authService.mailMessages.sendWelcomeMessage(user, organizationId);
-      Logger.info(`[welcome_mail] finished: ${job.attrs.data}`);
-      done();
-    } catch (error) {
-      Logger.error(`[welcome_mail] error: ${job.attrs.data}, error: ${error}`);
-      done(error);
-    }
-  }
-}
--- a/packages/server/src/loaders/eventEmitter.ts
+++ b/packages/server/src/loaders/eventEmitter.ts
@@ -7,11 +7,11 @@ import PaymentSyncBillBalance from '@/subscribers/PaymentMades/PaymentSyncBillBa
 import SaleReceiptInventoryTransactionsSubscriber from '@/subscribers/SaleReceipt/WriteInventoryTransactions';
 import SaleInvoiceWriteInventoryTransactions from '@/subscribers/SaleInvoices/WriteInventoryTransactions';
 import SaleInvoiceWriteGLEntriesSubscriber from '@/subscribers/SaleInvoices/WriteJournalEntries';
+import SaleReceiptWriteGLEntriesSubscriber from '@/subscribers/SaleReceipt/WriteJournalEntries';
 import PaymentReceiveSyncInvoices from '@/subscribers/PaymentReceive/PaymentReceiveSyncInvoices';
 import CashflowTransactionSubscriber from '@/services/Cashflow/CashflowTransactionSubscriber';
 import PaymentReceivesWriteGLEntriesSubscriber from '@/subscribers/PaymentReceive/WriteGLEntries';
 import InventorySubscriber from '@/subscribers/Inventory/Inventory';
-import SaleReceiptWriteGLEntriesSubscriber from '@/subscribers/SaleReceipt/WriteJournalEntries';
 import { CustomerWriteGLOpeningBalanceSubscriber } from '@/services/Contacts/Customers/Subscribers/CustomerGLEntriesSubscriber';
 import { VendorsWriteGLOpeningSubscriber } from '@/services/Contacts/Vendors/Subscribers/VendorGLEntriesSubscriber';
 import SaleEstimateAutoSerialSubscriber from '@/subscribers/SaleEstimate/AutoIncrementSerial';
@@ -31,12 +31,11 @@ import OrgBuildSmsNotificationSubscriber from '@/subscribers/Organization/BuildS
 import PurgeUserAbilityCache from '@/services/Users/PurgeUserAbilityCache';
 import ResetLoginThrottleSubscriber from '@/subscribers/Authentication/ResetLoginThrottle';
 import AuthenticationSubscriber from '@/subscribers/Authentication/SendResetPasswordMail';
-import AuthSendWelcomeMailSubscriber from '@/subscribers/Authentication/SendWelcomeMail';
 import PurgeAuthorizedUserOnceRoleMutate from '@/services/Roles/PurgeAuthorizedUser';
 import SendSmsNotificationToCustomer from '@/subscribers/SaleInvoices/SendSmsNotificationToCustomer';
 import SendSmsNotificationSaleReceipt from '@/subscribers/SaleReceipt/SendSmsNotificationToCustomer';
 import SendSmsNotificationPaymentReceive from '@/subscribers/PaymentReceive/SendSmsNotificationToCustomer';
-import SaleInvoiceWriteoffSubscriber from '@/services/Sales/SaleInvoiceWriteoffSubscriber';
+import SaleInvoiceWriteoffSubscriber from '@/services/Sales/Invoices/SaleInvoiceWriteoffSubscriber';
 import LandedCostSyncCostTransactionsSubscriber from '@/services/Purchases/LandedCost/LandedCostSyncCostTransactionsSubscriber';
 import LandedCostInventoryTransactionsSubscriber from '@/services/Purchases/LandedCost/LandedCostInventoryTransactionsSubscriber';
 import CreditNoteGLEntriesSubscriber from '@/services/CreditNotes/CreditNoteGLEntriesSubscriber';
@@ -67,7 +66,6 @@ import { ActivateWarehousesSubscriber } from '@/services/Warehouses/ActivateWare
 import { ManualJournalWriteGLSubscriber } from '@/services/ManualJournals/ManualJournalGLEntriesSubscriber';
 import { BillGLEntriesSubscriber } from '@/services/Purchases/Bills/BillGLEntriesSubscriber';
 import { PaymentWriteGLEntriesSubscriber } from '@/services/Purchases/BillPayments/BillPaymentGLEntriesSubscriber';
-
 import BranchesIntegrationsSubscribers from '@/services/Branches/EventsProvider';
 import WarehousesIntegrationsSubscribers from '@/services/Warehouses/EventsProvider';
 import { WarehouseTransferAutoIncrementSubscriber } from '@/services/Warehouses/WarehousesTransfers/WarehouseTransferAutoIncrementSubscriber';
@@ -120,7 +118,6 @@ export const susbcribers = () => {
    PurgeUserAbilityCache,
    ResetLoginThrottleSubscriber,
    AuthenticationSubscriber,
-    AuthSendWelcomeMailSubscriber,
    PurgeAuthorizedUserOnceRoleMutate,
    SendSmsNotificationToCustomer,
    SendSmsNotificationSaleReceipt,
--- a/packages/server/src/loaders/jobs.ts
+++ b/packages/server/src/loaders/jobs.ts
@@ -1,24 +1,18 @@
 import Agenda from 'agenda';
-import WelcomeEmailJob from 'jobs/welcomeEmail';
-import WelcomeSMSJob from 'jobs/WelcomeSMS';
 import ResetPasswordMailJob from 'jobs/ResetPasswordMail';
 import ComputeItemCost from 'jobs/ComputeItemCost';
-import RewriteInvoicesJournalEntries from 'jobs/writeInvoicesJEntries';
+import RewriteInvoicesJournalEntries from 'jobs/WriteInvoicesJEntries';
 import UserInviteMailJob from 'jobs/UserInviteMail';
 import OrganizationSetupJob from 'jobs/OrganizationSetup';
 import OrganizationUpgrade from 'jobs/OrganizationUpgrade';
-import SmsNotification from 'jobs/SmsNotification';

 export default ({ agenda }: { agenda: Agenda }) => {
-  new WelcomeEmailJob(agenda);
  new ResetPasswordMailJob(agenda);
-  new WelcomeSMSJob(agenda);
  new UserInviteMailJob(agenda);
  new ComputeItemCost(agenda);
  new RewriteInvoicesJournalEntries(agenda);
  new OrganizationSetupJob(agenda);
  new OrganizationUpgrade(agenda);
-  new SmsNotification(agenda);

  agenda.start();
 };
--- a/packages/server/src/models/Bill.ts
+++ b/packages/server/src/models/Bill.ts
@@ -5,7 +5,7 @@ import TenantModel from 'models/TenantModel';
 import BillSettings from './Bill.Settings';
 import ModelSetting from './ModelSetting';
 import CustomViewBaseModel from './CustomViewBaseModel';
-import { DEFAULT_VIEWS } from '@/services/Purchases/constants';
+import { DEFAULT_VIEWS } from '@/services/Purchases/Bills/constants';
 import ModelSearchable from './ModelSearchable';

 export default class Bill extends mixin(TenantModel, [
--- a/packages/server/src/models/SaleInvoice.ts
+++ b/packages/server/src/models/SaleInvoice.ts
@@ -5,7 +5,7 @@ import TenantModel from 'models/TenantModel';
 import ModelSetting from './ModelSetting';
 import SaleInvoiceMeta from './SaleInvoice.Settings';
 import CustomViewBaseModel from './CustomViewBaseModel';
-import { DEFAULT_VIEWS } from '@/services/Sales/constants';
+import { DEFAULT_VIEWS } from '@/services/Sales/Invoices/constants';
 import ModelSearchable from './ModelSearchable';

 export default class SaleInvoice extends mixin(TenantModel, [
--- a/packages/server/src/services/Accounting/LedgerContactStorage.ts
+++ b/packages/server/src/services/Accounting/LedgerContactStorage.ts
@@ -1,9 +1,14 @@
 import { Service, Inject } from 'typedi';
 import async from 'async';
 import { Knex } from 'knex';
-import { ILedger, ISaleContactsBalanceQueuePayload } from '@/interfaces';
+import {
+  ILedger,
+  ILedgerEntry,
+  ISaleContactsBalanceQueuePayload,
+} from '@/interfaces';
 import HasTenancyService from '@/services/Tenancy/TenancyService';
 import { TenantMetadata } from '@/system/models';
+import { ACCOUNT_TYPE } from '@/data/AccountTypes';

@Service()
 export class LedgerContactsBalanceStorage {
@@ -49,6 +54,29 @@ export class LedgerContactsBalanceStorage {
    await this.saveContactBalance(tenantId, ledger, contactId, trx);
  };

+  /**
+   * Filters AP/AR ledger entries.
+   * @param {number} tenantId
+   * @param {Knex.Transaction} trx
+   * @returns {Promise<(entry: ILedgerEntry) => boolean>}
+   */
+  private filterARAPLedgerEntris = async (
+    tenantId: number,
+    trx?: Knex.Transaction
+  ): Promise<(entry: ILedgerEntry) => boolean> => {
+    const { Account } = this.tenancy.models(tenantId);
+
+    const ARAPAcounts = await Account.query(trx).whereIn('accountType', [
+      ACCOUNT_TYPE.ACCOUNTS_RECEIVABLE,
+      ACCOUNT_TYPE.ACCOUNTS_PAYABLE,
+    ]);
+    const ARAPAcountsIds = ARAPAcounts.map((a) => a.id);
+
+    return (entry: ILedgerEntry) => {
+      return ARAPAcountsIds.indexOf(entry.accountId) !== -1;
+    };
+  };
+
  /**
   *
   * @param   {number} tenantId
@@ -63,16 +91,24 @@ export class LedgerContactsBalanceStorage {
    trx?: Knex.Transaction
  ): Promise<void> => {
    const { Contact } = this.tenancy.models(tenantId);
-    const contact = await Contact.query().findById(contactId);
+    const contact = await Contact.query(trx).findById(contactId);

    // Retrieves the given tenant metadata.
    const tenantMeta = await TenantMetadata.query().findOne({ tenantId });
-    
+
    // Detarmines whether the contact has foreign currency.
    const isForeignContact = contact.currencyCode !== tenantMeta.baseCurrency;

    // Filters the ledger base on the given contact id.
-    const contactLedger = ledger.whereContactId(contactId);
+    const filterARAPLedgerEntris = await this.filterARAPLedgerEntris(
+      tenantId,
+      trx
+    );
+    const contactLedger = ledger
+      // Filter entries only that have contact id.
+      .whereContactId(contactId)
+      // Filter entries on AR/AP accounts.
+      .filter(filterARAPLedgerEntris);

    const closingBalance = isForeignContact
      ? contactLedger
--- a/packages/server/src/services/Accounting/utils.ts
+++ b/packages/server/src/services/Accounting/utils.ts
@@ -21,6 +21,8 @@ export const transformLedgerEntryToTransaction = (
    transactionNumber: entry.transactionNumber,
    referenceNumber: entry.referenceNumber,

+    note: entry.note,
+
    index: entry.index,
    indexGroup: entry.indexGroup,

--- a/packages/server/src/services/Authentication/AuthenticationMailMessages.ts
+++ b/packages/server/src/services/Authentication/AuthenticationMailMessages.ts
@@ -5,59 +5,24 @@ import Mail from '@/lib/Mail';

@Service()
 export default class AuthenticationMailMesssages {
-  /**
-   * Sends welcome message.
-   * @param {ISystemUser} user - The system user.
-   * @param {string} organizationName -
-   * @return {Promise<void>}
-   */
-  async sendWelcomeMessage(
-    user: ISystemUser,
-    organizationId: string
-  ): Promise<void> {
-    const root = __dirname + '/../../../views/images/bigcapital.png';
-
-    const mail = new Mail()
-      .setView('mail/Welcome.html')
-      .setSubject('Welcome to Bigcapital')
-      .setTo(user.email)
-      .setAttachments([
-        {
-          filename: 'bigcapital.png',
-          path: root,
-          cid: 'bigcapital_logo',
-        },
-      ])
-      .setData({
-        firstName: user.firstName,
-        organizationId,
-        successPhoneNumber: config.customerSuccess.phoneNumber,
-        successEmail: config.customerSuccess.email,
-      });
-
-    await mail.send();
-  }
-
  /**
   * Sends reset password message.
   * @param {ISystemUser} user - The system user.
   * @param {string} token - Reset password token.
   * @return {Promise<void>}
   */
-  async sendResetPasswordMessage(
+  public async sendResetPasswordMessage(
    user: ISystemUser,
    token: string
  ): Promise<void> {
-    const root = __dirname + '/../../../views/images/bigcapital.png';
-
-    const mail = new Mail()
+    await new Mail()
      .setSubject('Bigcapital - Password Reset')
      .setView('mail/ResetPassword.html')
      .setTo(user.email)
      .setAttachments([
        {
          filename: 'bigcapital.png',
-          path: root,
+          path: `${global.__views_dir}/images/bigcapital.png`,
          cid: 'bigcapital_logo',
        },
      ])
@@ -65,9 +30,7 @@ export default class AuthenticationMailMesssages {
        resetPasswordUrl: `${config.baseURL}/auth/reset_password/${token}`,
        first_name: user.firstName,
        last_name: user.lastName,
-        contact_us_email: config.contactUsMail,
-      });
-
-    await mail.send();
+      })
+      .send();
  }
 }
--- a/packages/server/src/services/Authentication/AuthenticationSMSMessages.ts
+++ b/packages/server/src/services/Authentication/AuthenticationSMSMessages.ts
@@ -1,19 +0,0 @@
-import { Service, Inject } from 'typedi';
-import { ISystemUser, ITenant } from '@/interfaces';
-
-@Service()
-export default class AuthenticationSMSMessages {
-  @Inject('SMSClient')
-  smsClient: any;
-
-  /**
-   * Sends welcome sms message.
-   * @param {ITenant} tenant
-   * @param {ISystemUser} user
-   */
-  sendWelcomeMessage(tenant: ITenant, user: ISystemUser) {
-    const message: string = `Hi ${user.firstName}, Welcome to Bigcapital, You've joined the new workspace, if you need any help please don't hesitate to contact us.`;
-
-    return this.smsClient.sendMessage(user.phoneNumber, message);
-  }
-}
--- a/packages/server/src/services/Branches/DeleteBranch.ts
+++ b/packages/server/src/services/Branches/DeleteBranch.ts
@@ -8,6 +8,7 @@ import { IBranchDeletedPayload, IBranchDeletePayload } from '@/interfaces';
 import { CURDBranch } from './CRUDBranch';
 import { BranchValidator } from './BranchValidate';
 import { ERRORS } from './constants';
+
@Service()
 export class DeleteBranch extends CURDBranch {
  @Inject()
--- a/packages/server/src/services/Branches/Integrations/ValidateBranchExistance.ts
+++ b/packages/server/src/services/Branches/Integrations/ValidateBranchExistance.ts
@@ -14,8 +14,8 @@ export class ValidateBranchExistance {

  /**
   * Validate transaction branch id when the feature is active.
-   * @param   {number} tenantId 
-   * @param   {number} branchId 
+   * @param   {number} tenantId
+   * @param   {number} branchId
   * @returns {Promise<void>}
   */
  public validateTransactionBranchWhenActive = async (
@@ -32,18 +32,16 @@ export class ValidateBranchExistance {

  /**
   * Validate transaction branch id existance.
-   * @param  {number} tenantId 
-   * @param  {number} branchId 
+   * @param  {number} tenantId
+   * @param  {number} branchId
   * @return {Promise<void>}
   */
  public validateTransactionBranch = async (
    tenantId: number,
    branchId: number | null
  ) => {
-    //
    this.validateBranchIdExistance(branchId);

-    //
    await this.validateBranchExistance(tenantId, branchId);
  };

@@ -62,7 +60,10 @@ export class ValidateBranchExistance {
   * @param tenantId
   * @param branchId
   */
-  public validateBranchExistance = async (tenantId: number, branchId: number) => {
+  public validateBranchExistance = async (
+    tenantId: number,
+    branchId: number
+  ) => {
    const { Branch } = this.tenancy.models(tenantId);

    const branch = await Branch.query().findById(branchId);
--- a/packages/server/src/services/Cashflow/CashflowTransactionJournalEntries.ts
+++ b/packages/server/src/services/Cashflow/CashflowTransactionJournalEntries.ts
@@ -25,8 +25,8 @@ export default class CashflowTransactionJournalEntries {

  /**
   * Retrieves the common entry of cashflow transaction.
-   * @param   {ICashflowTransaction} cashflowTransaction
-   * @returns {}
+   * @param {ICashflowTransaction} cashflowTransaction
+   * @returns {Partial<ILedgerEntry>}
   */
  private getCommonEntry = (cashflowTransaction: ICashflowTransaction) => {
    const { entries, ...transaction } = cashflowTransaction;
@@ -41,7 +41,9 @@ export default class CashflowTransactionJournalEntries {
      ),
      transactionId: transaction.id,
      transactionNumber: transaction.transactionNumber,
-      referenceNo: transaction.referenceNo,
+      referenceNumber: transaction.referenceNo,
+
+      note: transaction.description,

      branchId: cashflowTransaction.branchId,
      userId: cashflowTransaction.userId,
@@ -76,9 +78,9 @@ export default class CashflowTransactionJournalEntries {

  /**
   * Retrieves the cashflow credit GL entry.
-   * @param   {ICashflowTransaction} cashflowTransaction
-   * @param   {ICashflowTransactionLine} entry
-   * @param   {number} index
+   * @param {ICashflowTransaction} cashflowTransaction
+   * @param {ICashflowTransactionLine} entry
+   * @param {number} index
   * @returns {ILedgerEntry}
   */
  private getCashflowCreditGLEntry = (
@@ -102,10 +104,10 @@ export default class CashflowTransactionJournalEntries {

  /**
   * Retrieves the cashflow transaction GL entry.
-   * @param   {ICashflowTransaction} cashflowTransaction
-   * @param   {ICashflowTransactionLine} entry
-   * @param   {number} index
-   * @returns
+   * @param {ICashflowTransaction} cashflowTransaction
+   * @param {ICashflowTransactionLine} entry
+   * @param {number} index
+   * @returns {ILedgerEntry[]}
   */
  private getJournalEntries = (
    cashflowTransaction: ICashflowTransaction
@@ -118,7 +120,7 @@ export default class CashflowTransactionJournalEntries {

  /**
   * Retrieves the cashflow GL ledger.
-   * @param   {ICashflowTransaction} cashflowTransaction
+   * @param {ICashflowTransaction} cashflowTransaction
   * @returns {Ledger}
   */
  private getCashflowLedger = (cashflowTransaction: ICashflowTransaction) => {
@@ -130,6 +132,7 @@ export default class CashflowTransactionJournalEntries {
   * Write the journal entries of the given cashflow transaction.
   * @param {number} tenantId
   * @param {ICashflowTransaction} cashflowTransaction
+   * @return {Promise<void>}
   */
  public writeJournalEntries = async (
    tenantId: number,
@@ -153,6 +156,7 @@ export default class CashflowTransactionJournalEntries {
   * Delete the journal entries.
   * @param {number} tenantId - Tenant id.
   * @param {number} cashflowTransactionId - Cashflow transaction id.
+   * @return {Promise<void>}
   */
  public revertJournalEntries = async (
    tenantId: number,
--- a/packages/server/src/services/Contacts/Customers/CRUD/CreateCustomer.ts
+++ b/packages/server/src/services/Contacts/Customers/CRUD/CreateCustomer.ts
@@ -55,7 +55,7 @@ export class CreateCustomer {
      } as ICustomerEventCreatingPayload);

      // Creates a new contact as customer.
-      const customer = await Contact.query().insertAndFetch({
+      const customer = await Contact.query(trx).insertAndFetch({
        ...customerObj,
      });
      // Triggers `onCustomerCreated` event.
--- a/packages/server/src/services/CreditNotes/CreditNoteApplyToInvoices.ts
+++ b/packages/server/src/services/CreditNotes/CreditNoteApplyToInvoices.ts
@@ -1,5 +1,5 @@
 import { Service, Inject } from 'typedi';
-import Knex from 'knex';
+import { Knex } from 'knex';
 import { sumBy } from 'lodash';
 import {
  ICreditNote,
@@ -8,27 +8,31 @@ import {
  ISaleInvoice,
 } from '@/interfaces';
 import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
-import PaymentReceiveService from '@/services/Sales/PaymentReceives/PaymentsReceives';
 import UnitOfWork from '@/services/UnitOfWork';
-import events from '@/subscribers/events';
+import { PaymentReceiveValidators } from '../Sales/PaymentReceives/PaymentReceiveValidators';
 import BaseCreditNotes from './CreditNotes';
 import {
  IApplyCreditToInvoicesDTO,
  IApplyCreditToInvoicesCreatedPayload,
 } from '@/interfaces';
 import { ServiceError } from '@/exceptions';
+import events from '@/subscribers/events';
 import { ERRORS } from './constants';
+import HasTenancyService from '../Tenancy/TenancyService';

@Service()
 export default class CreditNoteApplyToInvoices extends BaseCreditNotes {
-  @Inject('PaymentReceives')
-  paymentReceive: PaymentReceiveService;
+  @Inject()
+  private tenancy: HasTenancyService;

  @Inject()
-  uow: UnitOfWork;
+  private paymentReceiveValidators: PaymentReceiveValidators;

  @Inject()
-  eventPublisher: EventPublisher;
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;

  /**
   * Apply credit note to the given invoices.
@@ -50,7 +54,7 @@ export default class CreditNoteApplyToInvoices extends BaseCreditNotes {
    );
    // Retrieve the applied invoices that associated to the credit note customer.
    const appliedInvoicesEntries =
-      await this.paymentReceive.validateInvoicesIDsExistance(
+      await this.paymentReceiveValidators.validateInvoicesIDsExistance(
        tenantId,
        creditNote.customerId,
        applyCreditToInvoicesDTO.entries
--- a/packages/server/src/services/CreditNotes/DeleteCreditNoteApplyToInvoices.ts
+++ b/packages/server/src/services/CreditNotes/DeleteCreditNoteApplyToInvoices.ts
@@ -1,24 +1,24 @@
 import { Service, Inject } from 'typedi';
-import Knex from 'knex';
+import { Knex } from 'knex';
 import { IApplyCreditToInvoicesDeletedPayload } from '@/interfaces';
 import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
-import PaymentReceiveService from '@/services/Sales/PaymentReceives/PaymentsReceives';
 import UnitOfWork from '@/services/UnitOfWork';
 import events from '@/subscribers/events';
 import BaseCreditNotes from './CreditNotes';
 import { ServiceError } from '@/exceptions';
 import { ERRORS } from './constants';
+import HasTenancyService from '../Tenancy/TenancyService';

@Service()
 export default class DeletreCreditNoteApplyToInvoices extends BaseCreditNotes {
-  @Inject('PaymentReceives')
-  paymentReceive: PaymentReceiveService;
+  @Inject()
+  private uow: UnitOfWork;

  @Inject()
-  uow: UnitOfWork;
+  private eventPublisher: EventPublisher;

  @Inject()
-  eventPublisher: EventPublisher;
+  private tenancy: HasTenancyService;

  /**
   * Apply credit note to the given invoices.
--- a/packages/server/src/services/Expenses/CRUD/DeleteExpense.ts
+++ b/packages/server/src/services/Expenses/CRUD/DeleteExpense.ts
@@ -9,7 +9,6 @@ import events from '@/subscribers/events';
 import UnitOfWork from '@/services/UnitOfWork';
 import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
 import { CommandExpenseValidator } from './CommandExpenseValidator';
-import { ExpenseCategory } from 'models';
 import HasTenancyService from '@/services/Tenancy/TenancyService';

@Service()
@@ -37,7 +36,7 @@ export class DeleteExpense {
    expenseId: number,
    authorizedUser: ISystemUser
  ): Promise<void> => {
-    const { Expense } = this.tenancy.models(tenantId);
+    const { Expense, ExpenseCategory } = this.tenancy.models(tenantId);

    // Retrieves the expense transaction with associated entries or
    // throw not found error.
@@ -60,7 +59,7 @@ export class DeleteExpense {
      } as IExpenseDeletingPayload);

      // Deletes expense associated entries.
-      await ExpenseCategory.query(trx).findById(expenseId).delete();
+      await ExpenseCategory.query(trx).where('expenseId', expenseId).delete();

      // Deletes expense transactions.
      await Expense.query(trx).findById(expenseId).delete();
--- a/packages/server/src/services/Expenses/ExpenseGLEntries.ts
+++ b/packages/server/src/services/Expenses/ExpenseGLEntries.ts
@@ -46,7 +46,7 @@ export class ExpenseGLEntries {
      ...commonEntry,
      credit: expense.localAmount,
      accountId: expense.paymentAccountId,
-      accountNormal: AccountNormal.CREDIT,
+      accountNormal: AccountNormal.DEBIT,
      index: 1,
    };
  };
--- a/packages/server/src/services/InviteUsers/SyncSystemSendInvite.ts
+++ b/packages/server/src/services/InviteUsers/SyncSystemSendInvite.ts
@@ -12,10 +12,10 @@ import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
@Service()
 export default class SyncSystemSendInvite {
  @Inject()
-  tenancy: HasTenancyService;
+  private tenancy: HasTenancyService;

  @Inject()
-  eventPublisher: EventPublisher;
+  private eventPublisher: EventPublisher;

  /**
   * Attaches events with handlers.
--- a/packages/server/src/services/Items/ItemInvoicesTransactionsTransformer.ts
+++ b/packages/server/src/services/Items/ItemInvoicesTransactionsTransformer.ts
@@ -27,7 +27,7 @@ export class ItemInvoicesTransactionsTransformer extends Transformer {
  }

  /**
-   *
+   * Formatted invoice date.
   * @param item
   * @returns
   */
@@ -36,16 +36,17 @@ export class ItemInvoicesTransactionsTransformer extends Transformer {
  };

  /**
-   *
+   * Formatted item quantity.
+   * @returns {string}
   */
  public formattedQuantity = (entry): string => {
    return entry.quantity;
  };

  /**
-   *
+   * Formatted date.
   * @param entry
-   * @returns
+   * @returns {string}
   */
  public formattedRate = (entry): string => {
    return formatNumber(entry.rate, {
--- a/packages/server/src/services/Items/ItemsEntriesService.ts
+++ b/packages/server/src/services/Items/ItemsEntriesService.ts
@@ -3,8 +3,8 @@ import { Inject, Service } from 'typedi';
 import { IItemEntry, IItemEntryDTO, IItem } from '@/interfaces';
 import { ServiceError } from '@/exceptions';
 import TenancyService from '@/services/Tenancy/TenancyService';
+import { ItemEntry } from '@/models';
 import { entriesAmountDiff } from 'utils';
-import { ItemEntry } from 'models';

 const ERRORS = {
  ITEMS_NOT_FOUND: 'ITEMS_NOT_FOUND',
@@ -16,7 +16,7 @@ const ERRORS = {
@Service()
 export default class ItemsEntriesService {
  @Inject()
-  tenancy: TenancyService;
+  private tenancy: TenancyService;

  /**
   * Retrieve the inventory items entries of the reference id and type.
@@ -235,7 +235,7 @@ export default class ItemsEntriesService {
  /**
   * Sets the cost/sell accounts to the invoice entries.
   */
-  setItemsEntriesDefaultAccounts(tenantId: number) {
+  public setItemsEntriesDefaultAccounts(tenantId: number) {
    return async (entries: IItemEntry[]) => {
      const { Item } = this.tenancy.models(tenantId);

@@ -258,10 +258,10 @@ export default class ItemsEntriesService {

  /**
   * Retrieve the total items entries.
-   * @param entries 
-   * @returns 
+   * @param entries
+   * @returns
   */
-  getTotalItemsEntries(entries: ItemEntry[]): number {
+  public getTotalItemsEntries(entries: ItemEntry[]): number {
    return sumBy(entries, (e) => ItemEntry.calcAmount(e));
  }
 }
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentBillSync.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentBillSync.ts
@@ -0,0 +1,48 @@
+import { Inject, Service } from 'typedi';
+import { Knex } from 'knex';
+import { IBillPaymentEntryDTO } from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { entriesAmountDiff } from '@/utils';
+
+@Service()
+export class BillPaymentBillSync {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Saves bills payment amount changes different.
+   * @param {number} tenantId -
+   * @param {IBillPaymentEntryDTO[]} paymentMadeEntries -
+   * @param {IBillPaymentEntryDTO[]} oldPaymentMadeEntries -
+   */
+  public async saveChangeBillsPaymentAmount(
+    tenantId: number,
+    paymentMadeEntries: IBillPaymentEntryDTO[],
+    oldPaymentMadeEntries?: IBillPaymentEntryDTO[],
+    trx?: Knex.Transaction
+  ): Promise<void> {
+    const { Bill } = this.tenancy.models(tenantId);
+    const opers: Promise<void>[] = [];
+
+    const diffEntries = entriesAmountDiff(
+      paymentMadeEntries,
+      oldPaymentMadeEntries,
+      'paymentAmount',
+      'billId'
+    );
+    diffEntries.forEach(
+      (diffEntry: { paymentAmount: number; billId: number }) => {
+        if (diffEntry.paymentAmount === 0) {
+          return;
+        }
+        const oper = Bill.changePaymentAmount(
+          diffEntry.billId,
+          diffEntry.paymentAmount,
+          trx
+        );
+        opers.push(oper);
+      }
+    );
+    await Promise.all(opers);
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentGLEntries.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentGLEntries.ts
@@ -99,7 +99,7 @@ export class BillPaymentGLEntries {

  /**
   * Retrieves the payment common entry.
-   * @param   {IBillPayment} billPayment
+   * @param {IBillPayment} billPayment
   * @returns {}
   */
  private getPaymentCommonEntry = (billPayment: IBillPayment) => {
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentTransactionTransformer.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentTransactionTransformer.ts
@@ -24,7 +24,7 @@ export class BillPaymentTransactionTransformer extends Transformer {
  /**
   * Retrieve formatted bill payment date.
   * @param entry
-   * @returns
+   * @returns {string}
   */
  protected formattedPaymentDate = (entry): string => {
    return this.formatDate(entry.payment.paymentDate);
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentValidators.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentValidators.ts
@@ -0,0 +1,278 @@
+import { Inject, Service } from 'typedi';
+import { sumBy, difference } from 'lodash';
+import {
+  IBill,
+  IBillPaymentDTO,
+  IBillPaymentEntryDTO,
+  IBillPayment,
+  IBillPaymentEntry,
+} from '@/interfaces';
+import TenancyService from '@/services/Tenancy/TenancyService';
+import { ServiceError } from '@/exceptions';
+import { ACCOUNT_TYPE } from '@/data/AccountTypes';
+import { BillPayment } from '@/models';
+import { ERRORS } from './constants';
+
+@Service()
+export class BillPaymentValidators {
+  @Inject()
+  private tenancy: TenancyService;
+
+  /**
+   * Validates the payment existance.
+   * @param {BillPayment | undefined | null} payment
+   * @throws {ServiceError(ERRORS.PAYMENT_MADE_NOT_FOUND)}
+   */
+  public async validateBillPaymentExistance(
+    payment: BillPayment | undefined | null
+  ) {
+    if (!payment) {
+      throw new ServiceError(ERRORS.PAYMENT_MADE_NOT_FOUND);
+    }
+  }
+
+  /**
+   * Validates the bill payment existance.
+   * @param {Request} req
+   * @param {Response} res
+   * @param {Function} next
+   */
+  public async getPaymentMadeOrThrowError(
+    tenantid: number,
+    paymentMadeId: number
+  ) {
+    const { BillPayment } = this.tenancy.models(tenantid);
+    const billPayment = await BillPayment.query()
+      .withGraphFetched('entries')
+      .findById(paymentMadeId);
+
+    if (!billPayment) {
+      throw new ServiceError(ERRORS.PAYMENT_MADE_NOT_FOUND);
+    }
+    return billPayment;
+  }
+
+  /**
+   * Validates the payment account.
+   * @param {number} tenantId -
+   * @param {number} paymentAccountId
+   * @return {Promise<IAccountType>}
+   */
+  public async getPaymentAccountOrThrowError(
+    tenantId: number,
+    paymentAccountId: number
+  ) {
+    const { accountRepository } = this.tenancy.repositories(tenantId);
+
+    const paymentAccount = await accountRepository.findOneById(
+      paymentAccountId
+    );
+    if (!paymentAccount) {
+      throw new ServiceError(ERRORS.PAYMENT_ACCOUNT_NOT_FOUND);
+    }
+    // Validate the payment account type.
+    if (
+      !paymentAccount.isAccountType([
+        ACCOUNT_TYPE.BANK,
+        ACCOUNT_TYPE.CASH,
+        ACCOUNT_TYPE.OTHER_CURRENT_ASSET,
+      ])
+    ) {
+      throw new ServiceError(ERRORS.PAYMENT_ACCOUNT_NOT_CURRENT_ASSET_TYPE);
+    }
+    return paymentAccount;
+  }
+
+  /**
+   * Validates the payment number uniqness.
+   * @param {number} tenantId -
+   * @param {string} paymentMadeNumber -
+   * @return {Promise<IBillPayment>}
+   */
+  public async validatePaymentNumber(
+    tenantId: number,
+    paymentMadeNumber: string,
+    notPaymentMadeId?: number
+  ) {
+    const { BillPayment } = this.tenancy.models(tenantId);
+
+    const foundBillPayment = await BillPayment.query().onBuild(
+      (builder: any) => {
+        builder.findOne('payment_number', paymentMadeNumber);
+
+        if (notPaymentMadeId) {
+          builder.whereNot('id', notPaymentMadeId);
+        }
+      }
+    );
+
+    if (foundBillPayment) {
+      throw new ServiceError(ERRORS.BILL_PAYMENT_NUMBER_NOT_UNQIUE);
+    }
+    return foundBillPayment;
+  }
+
+  /**
+   * Validate whether the entries bills ids exist on the storage.
+   * @param {Request} req
+   * @param {Response} res
+   * @param {NextFunction} next
+   */
+  public async validateBillsExistance(
+    tenantId: number,
+    billPaymentEntries: { billId: number }[],
+    vendorId: number
+  ) {
+    const { Bill } = this.tenancy.models(tenantId);
+    const entriesBillsIds = billPaymentEntries.map((e: any) => e.billId);
+
+    const storedBills = await Bill.query()
+      .whereIn('id', entriesBillsIds)
+      .where('vendor_id', vendorId);
+
+    const storedBillsIds = storedBills.map((t: IBill) => t.id);
+    const notFoundBillsIds = difference(entriesBillsIds, storedBillsIds);
+
+    if (notFoundBillsIds.length > 0) {
+      throw new ServiceError(ERRORS.BILL_ENTRIES_IDS_NOT_FOUND);
+    }
+    // Validate the not opened bills.
+    const notOpenedBills = storedBills.filter((bill) => !bill.openedAt);
+
+    if (notOpenedBills.length > 0) {
+      throw new ServiceError(ERRORS.BILLS_NOT_OPENED_YET, null, {
+        notOpenedBills,
+      });
+    }
+    return storedBills;
+  }
+
+  /**
+   * Validate wether the payment amount bigger than the payable amount.
+   * @param {Request} req
+   * @param {Response} res
+   * @param {NextFunction} next
+   * @return {void}
+   */
+  public async validateBillsDueAmount(
+    tenantId: number,
+    billPaymentEntries: IBillPaymentEntryDTO[],
+    oldPaymentEntries: IBillPaymentEntry[] = []
+  ) {
+    const { Bill } = this.tenancy.models(tenantId);
+    const billsIds = billPaymentEntries.map(
+      (entry: IBillPaymentEntryDTO) => entry.billId
+    );
+
+    const storedBills = await Bill.query().whereIn('id', billsIds);
+    const storedBillsMap = new Map(
+      storedBills.map((bill) => {
+        const oldEntries = oldPaymentEntries.filter(
+          (entry) => entry.billId === bill.id
+        );
+        const oldPaymentAmount = sumBy(oldEntries, 'paymentAmount') || 0;
+
+        return [
+          bill.id,
+          { ...bill, dueAmount: bill.dueAmount + oldPaymentAmount },
+        ];
+      })
+    );
+    interface invalidPaymentAmountError {
+      index: number;
+      due_amount: number;
+    }
+    const hasWrongPaymentAmount: invalidPaymentAmountError[] = [];
+
+    billPaymentEntries.forEach((entry: IBillPaymentEntryDTO, index: number) => {
+      const entryBill = storedBillsMap.get(entry.billId);
+      const { dueAmount } = entryBill;
+
+      if (dueAmount < entry.paymentAmount) {
+        hasWrongPaymentAmount.push({ index, due_amount: dueAmount });
+      }
+    });
+    if (hasWrongPaymentAmount.length > 0) {
+      throw new ServiceError(ERRORS.INVALID_BILL_PAYMENT_AMOUNT);
+    }
+  }
+
+  /**
+   * Validate the payment receive entries IDs existance.
+   * @param {Request} req
+   * @param {Response} res
+   * @return {Response}
+   */
+  public async validateEntriesIdsExistance(
+    tenantId: number,
+    billPaymentId: number,
+    billPaymentEntries: IBillPaymentEntry[]
+  ) {
+    const { BillPaymentEntry } = this.tenancy.models(tenantId);
+
+    const entriesIds = billPaymentEntries
+      .filter((entry: any) => entry.id)
+      .map((entry: any) => entry.id);
+
+    const storedEntries = await BillPaymentEntry.query().where(
+      'bill_payment_id',
+      billPaymentId
+    );
+
+    const storedEntriesIds = storedEntries.map((entry: any) => entry.id);
+    const notFoundEntriesIds = difference(entriesIds, storedEntriesIds);
+
+    if (notFoundEntriesIds.length > 0) {
+      throw new ServiceError(ERRORS.BILL_PAYMENT_ENTRIES_NOT_FOUND);
+    }
+  }
+
+  /**
+   * * Validate the payment vendor whether modified.
+   * @param {string} billPaymentNo
+   */
+  public validateVendorNotModified(
+    billPaymentDTO: IBillPaymentDTO,
+    oldBillPayment: IBillPayment
+  ) {
+    if (billPaymentDTO.vendorId !== oldBillPayment.vendorId) {
+      throw new ServiceError(ERRORS.PAYMENT_NUMBER_SHOULD_NOT_MODIFY);
+    }
+  }
+
+  /**
+   * Validates the payment account currency code. The deposit account curreny
+   * should be equals the customer currency code or the base currency.
+   * @param  {string} paymentAccountCurrency
+   * @param  {string} customerCurrency
+   * @param  {string} baseCurrency
+   * @throws {ServiceError(ERRORS.WITHDRAWAL_ACCOUNT_CURRENCY_INVALID)}
+   */
+  public validateWithdrawalAccountCurrency = (
+    paymentAccountCurrency: string,
+    customerCurrency: string,
+    baseCurrency: string
+  ) => {
+    if (
+      paymentAccountCurrency !== customerCurrency &&
+      paymentAccountCurrency !== baseCurrency
+    ) {
+      throw new ServiceError(ERRORS.WITHDRAWAL_ACCOUNT_CURRENCY_INVALID);
+    }
+  };
+
+  /**
+   * Validates the given vendor has no associated payments.
+   * @param {number} tenantId
+   * @param {number} vendorId
+   */
+  public async validateVendorHasNoPayments(tenantId: number, vendorId: number) {
+    const { BillPayment } = this.tenancy.models(tenantId);
+
+    const payments = await BillPayment.query().where('vendor_id', vendorId);
+
+    if (payments.length > 0) {
+      throw new ServiceError(ERRORS.VENDOR_HAS_PAYMENTS);
+    }
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/BillPayments.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPayments.ts
@@ -1,713 +0,0 @@
-import { Inject, Service } from 'typedi';
-import { sumBy, difference } from 'lodash';
-import * as R from 'ramda';
-import { Knex } from 'knex';
-import events from '@/subscribers/events';
-import {
-  IBill,
-  IBillPaymentDTO,
-  IBillPaymentEntryDTO,
-  IBillPayment,
-  IBillPaymentsFilter,
-  IPaginationMeta,
-  IFilterMeta,
-  IBillPaymentEntry,
-  IBillPaymentEventCreatedPayload,
-  IBillPaymentEventEditedPayload,
-  IBillPaymentEventDeletedPayload,
-  IBillPaymentCreatingPayload,
-  IBillPaymentEditingPayload,
-  IBillPaymentDeletingPayload,
-  IVendor,
-} from '@/interfaces';
-import JournalPosterService from '@/services/Sales/JournalPosterService';
-import TenancyService from '@/services/Tenancy/TenancyService';
-import DynamicListingService from '@/services/DynamicListing/DynamicListService';
-import { entriesAmountDiff, formatDateFields } from 'utils';
-import { ServiceError } from '@/exceptions';
-import { ACCOUNT_TYPE } from '@/data/AccountTypes';
-import { BillPaymentTransformer } from './BillPaymentTransformer';
-import { ERRORS } from './constants';
-import UnitOfWork from '@/services/UnitOfWork';
-import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
-import { BranchTransactionDTOTransform } from '@/services/Branches/Integrations/BranchTransactionDTOTransform';
-import { TenantMetadata } from '@/system/models';
-import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
-
-/**
- * Bill payments service.
- * @service
- */
-@Service('BillPayments')
-export default class BillPaymentsService implements IBillPaymentsService {
-  @Inject()
-  tenancy: TenancyService;
-
-  @Inject()
-  journalService: JournalPosterService;
-
-  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  eventPublisher: EventPublisher;
-
-  @Inject()
-  private transformer: TransformerInjectable;
-
-  @Inject()
-  uow: UnitOfWork;
-
-  @Inject()
-  private branchDTOTransform: BranchTransactionDTOTransform;
-
-  /**
-   * Validates the bill payment existance.
-   * @param {Request} req
-   * @param {Response} res
-   * @param {Function} next
-   */
-  private async getPaymentMadeOrThrowError(
-    tenantid: number,
-    paymentMadeId: number
-  ) {
-    const { BillPayment } = this.tenancy.models(tenantid);
-    const billPayment = await BillPayment.query()
-      .withGraphFetched('entries')
-      .findById(paymentMadeId);
-
-    if (!billPayment) {
-      throw new ServiceError(ERRORS.PAYMENT_MADE_NOT_FOUND);
-    }
-    return billPayment;
-  }
-
-  /**
-   * Validates the payment account.
-   * @param {number} tenantId -
-   * @param {number} paymentAccountId
-   * @return {Promise<IAccountType>}
-   */
-  private async getPaymentAccountOrThrowError(
-    tenantId: number,
-    paymentAccountId: number
-  ) {
-    const { accountRepository } = this.tenancy.repositories(tenantId);
-
-    const paymentAccount = await accountRepository.findOneById(
-      paymentAccountId
-    );
-    if (!paymentAccount) {
-      throw new ServiceError(ERRORS.PAYMENT_ACCOUNT_NOT_FOUND);
-    }
-    // Validate the payment account type.
-    if (
-      !paymentAccount.isAccountType([
-        ACCOUNT_TYPE.BANK,
-        ACCOUNT_TYPE.CASH,
-        ACCOUNT_TYPE.OTHER_CURRENT_ASSET,
-      ])
-    ) {
-      throw new ServiceError(ERRORS.PAYMENT_ACCOUNT_NOT_CURRENT_ASSET_TYPE);
-    }
-    return paymentAccount;
-  }
-
-  /**
-   * Validates the payment number uniqness.
-   * @param {number} tenantId -
-   * @param {string} paymentMadeNumber -
-   * @return {Promise<IBillPayment>}
-   */
-  private async validatePaymentNumber(
-    tenantId: number,
-    paymentMadeNumber: string,
-    notPaymentMadeId?: number
-  ) {
-    const { BillPayment } = this.tenancy.models(tenantId);
-
-    const foundBillPayment = await BillPayment.query().onBuild(
-      (builder: any) => {
-        builder.findOne('payment_number', paymentMadeNumber);
-
-        if (notPaymentMadeId) {
-          builder.whereNot('id', notPaymentMadeId);
-        }
-      }
-    );
-
-    if (foundBillPayment) {
-      throw new ServiceError(ERRORS.BILL_PAYMENT_NUMBER_NOT_UNQIUE);
-    }
-    return foundBillPayment;
-  }
-
-  /**
-   * Validate whether the entries bills ids exist on the storage.
-   * @param {Request} req
-   * @param {Response} res
-   * @param {NextFunction} next
-   */
-  public async validateBillsExistance(
-    tenantId: number,
-    billPaymentEntries: { billId: number }[],
-    vendorId: number
-  ) {
-    const { Bill } = this.tenancy.models(tenantId);
-    const entriesBillsIds = billPaymentEntries.map((e: any) => e.billId);
-
-    const storedBills = await Bill.query()
-      .whereIn('id', entriesBillsIds)
-      .where('vendor_id', vendorId);
-
-    const storedBillsIds = storedBills.map((t: IBill) => t.id);
-    const notFoundBillsIds = difference(entriesBillsIds, storedBillsIds);
-
-    if (notFoundBillsIds.length > 0) {
-      throw new ServiceError(ERRORS.BILL_ENTRIES_IDS_NOT_FOUND);
-    }
-    // Validate the not opened bills.
-    const notOpenedBills = storedBills.filter((bill) => !bill.openedAt);
-
-    if (notOpenedBills.length > 0) {
-      throw new ServiceError(ERRORS.BILLS_NOT_OPENED_YET, null, {
-        notOpenedBills,
-      });
-    }
-    return storedBills;
-  }
-
-  /**
-   * Validate wether the payment amount bigger than the payable amount.
-   * @param {Request} req
-   * @param {Response} res
-   * @param {NextFunction} next
-   * @return {void}
-   */
-  private async validateBillsDueAmount(
-    tenantId: number,
-    billPaymentEntries: IBillPaymentEntryDTO[],
-    oldPaymentEntries: IBillPaymentEntry[] = []
-  ) {
-    const { Bill } = this.tenancy.models(tenantId);
-    const billsIds = billPaymentEntries.map(
-      (entry: IBillPaymentEntryDTO) => entry.billId
-    );
-
-    const storedBills = await Bill.query().whereIn('id', billsIds);
-    const storedBillsMap = new Map(
-      storedBills.map((bill) => {
-        const oldEntries = oldPaymentEntries.filter(
-          (entry) => entry.billId === bill.id
-        );
-        const oldPaymentAmount = sumBy(oldEntries, 'paymentAmount') || 0;
-
-        return [
-          bill.id,
-          { ...bill, dueAmount: bill.dueAmount + oldPaymentAmount },
-        ];
-      })
-    );
-    interface invalidPaymentAmountError {
-      index: number;
-      due_amount: number;
-    }
-    const hasWrongPaymentAmount: invalidPaymentAmountError[] = [];
-
-    billPaymentEntries.forEach((entry: IBillPaymentEntryDTO, index: number) => {
-      const entryBill = storedBillsMap.get(entry.billId);
-      const { dueAmount } = entryBill;
-
-      if (dueAmount < entry.paymentAmount) {
-        hasWrongPaymentAmount.push({ index, due_amount: dueAmount });
-      }
-    });
-    if (hasWrongPaymentAmount.length > 0) {
-      throw new ServiceError(ERRORS.INVALID_BILL_PAYMENT_AMOUNT);
-    }
-  }
-
-  /**
-   * Validate the payment receive entries IDs existance.
-   * @param {Request} req
-   * @param {Response} res
-   * @return {Response}
-   */
-  private async validateEntriesIdsExistance(
-    tenantId: number,
-    billPaymentId: number,
-    billPaymentEntries: IBillPaymentEntry[]
-  ) {
-    const { BillPaymentEntry } = this.tenancy.models(tenantId);
-
-    const entriesIds = billPaymentEntries
-      .filter((entry: any) => entry.id)
-      .map((entry: any) => entry.id);
-
-    const storedEntries = await BillPaymentEntry.query().where(
-      'bill_payment_id',
-      billPaymentId
-    );
-
-    const storedEntriesIds = storedEntries.map((entry: any) => entry.id);
-    const notFoundEntriesIds = difference(entriesIds, storedEntriesIds);
-
-    if (notFoundEntriesIds.length > 0) {
-      throw new ServiceError(ERRORS.BILL_PAYMENT_ENTRIES_NOT_FOUND);
-    }
-  }
-
-  /**
-   * * Validate the payment vendor whether modified.
-   * @param {string} billPaymentNo
-   */
-  private validateVendorNotModified(
-    billPaymentDTO: IBillPaymentDTO,
-    oldBillPayment: IBillPayment
-  ) {
-    if (billPaymentDTO.vendorId !== oldBillPayment.vendorId) {
-      throw new ServiceError(ERRORS.PAYMENT_NUMBER_SHOULD_NOT_MODIFY);
-    }
-  }
-
-  /**
-   * Validates the payment account currency code. The deposit account curreny
-   * should be equals the customer currency code or the base currency.
-   * @param  {string} paymentAccountCurrency
-   * @param  {string} customerCurrency
-   * @param  {string} baseCurrency
-   * @throws {ServiceError(ERRORS.WITHDRAWAL_ACCOUNT_CURRENCY_INVALID)}
-   */
-  public validateWithdrawalAccountCurrency = (
-    paymentAccountCurrency: string,
-    customerCurrency: string,
-    baseCurrency: string
-  ) => {
-    if (
-      paymentAccountCurrency !== customerCurrency &&
-      paymentAccountCurrency !== baseCurrency
-    ) {
-      throw new ServiceError(ERRORS.WITHDRAWAL_ACCOUNT_CURRENCY_INVALID);
-    }
-  };
-
-  /**
-   * Transforms create/edit DTO to model.
-   * @param {number} tenantId
-   * @param {IBillPaymentDTO} billPaymentDTO - Bill payment.
-   * @param {IBillPayment} oldBillPayment - Old bill payment.
-   * @return {Promise<IBillPayment>}
-   */
-  async transformDTOToModel(
-    tenantId: number,
-    billPaymentDTO: IBillPaymentDTO,
-    vendor: IVendor,
-    oldBillPayment?: IBillPayment
-  ): Promise<IBillPayment> {
-    const initialDTO = {
-      ...formatDateFields(billPaymentDTO, ['paymentDate']),
-      amount: sumBy(billPaymentDTO.entries, 'paymentAmount'),
-      currencyCode: vendor.currencyCode,
-      exchangeRate: billPaymentDTO.exchangeRate || 1,
-      entries: billPaymentDTO.entries,
-    };
-    return R.compose(
-      this.branchDTOTransform.transformDTO<IBillPayment>(tenantId)
-    )(initialDTO);
-  }
-
-  /**
-   * Creates a new bill payment transcations and store it to the storage
-   * with associated bills entries and journal transactions.
-   *
-   * Precedures:-
-   * ------
-   * - Records the bill payment transaction.
-   * - Records the bill payment associated entries.
-   * - Increment the payment amount of the given vendor bills.
-   * - Decrement the vendor balance.
-   * - Records payment journal entries.
-   * ------
-   * @param {number} tenantId - Tenant id.
-   * @param {BillPaymentDTO} billPayment - Bill payment object.
-   */
-  public async createBillPayment(
-    tenantId: number,
-    billPaymentDTO: IBillPaymentDTO
-  ): Promise<IBillPayment> {
-    const { BillPayment, Contact } = this.tenancy.models(tenantId);
-
-    const tenantMeta = await TenantMetadata.query().findOne({ tenantId });
-
-    // Retrieves the payment vendor or throw not found error.
-    const vendor = await Contact.query()
-      .findById(billPaymentDTO.vendorId)
-      .modify('vendor')
-      .throwIfNotFound();
-
-    // Transform create DTO to model object.
-    const billPaymentObj = await this.transformDTOToModel(
-      tenantId,
-      billPaymentDTO,
-      vendor
-    );
-    // Validate the payment account existance and type.
-    const paymentAccount = await this.getPaymentAccountOrThrowError(
-      tenantId,
-      billPaymentObj.paymentAccountId
-    );
-    // Validate the payment number uniquiness.
-    if (billPaymentObj.paymentNumber) {
-      await this.validatePaymentNumber(tenantId, billPaymentObj.paymentNumber);
-    }
-    // Validates the bills existance and associated to the given vendor.
-    await this.validateBillsExistance(
-      tenantId,
-      billPaymentObj.entries,
-      billPaymentDTO.vendorId
-    );
-    // Validates the bills due payment amount.
-    await this.validateBillsDueAmount(tenantId, billPaymentObj.entries);
-
-    // Validates the withdrawal account currency code.
-    this.validateWithdrawalAccountCurrency(
-      paymentAccount.currencyCode,
-      vendor.currencyCode,
-      tenantMeta.baseCurrency
-    );
-    // Writes bill payment transacation with associated transactions
-    // under unit-of-work envirement.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillPaymentCreating` event.
-      await this.eventPublisher.emitAsync(events.billPayment.onCreating, {
-        tenantId,
-        billPaymentDTO,
-        trx,
-      } as IBillPaymentCreatingPayload);
-
-      // Writes the bill payment graph to the storage.
-      const billPayment = await BillPayment.query(trx).insertGraphAndFetch({
-        ...billPaymentObj,
-      });
-
-      // Triggers `onBillPaymentCreated` event.
-      await this.eventPublisher.emitAsync(events.billPayment.onCreated, {
-        tenantId,
-        billPayment,
-        billPaymentId: billPayment.id,
-        trx,
-      } as IBillPaymentEventCreatedPayload);
-
-      return billPayment;
-    });
-  }
-
-  /**
-   * Edits the details of the given bill payment.
-   *
-   * Preceducres:
-   * ------
-   * - Update the bill payment transaction.
-   * - Insert the new bill payment entries that have no ids.
-   * - Update the bill paymeny entries that have ids.
-   * - Delete the bill payment entries that not presented.
-   * - Re-insert the journal transactions and update the diff accounts balance.
-   * - Update the diff vendor balance.
-   * - Update the diff bill payment amount.
-   * ------
-   * @param {number} tenantId - Tenant id
-   * @param {Integer} billPaymentId
-   * @param {BillPaymentDTO} billPayment
-   * @param {IBillPayment} oldBillPayment
-   */
-  public async editBillPayment(
-    tenantId: number,
-    billPaymentId: number,
-    billPaymentDTO
-  ): Promise<IBillPayment> {
-    const { BillPayment, Contact } = this.tenancy.models(tenantId);
-
-    const tenantMeta = await TenantMetadata.query().findOne({ tenantId });
-
-    //
-    const oldBillPayment = await this.getPaymentMadeOrThrowError(
-      tenantId,
-      billPaymentId
-    );
-
-    //
-    const vendor = await Contact.query()
-      .modify('vendor')
-      .findById(billPaymentDTO.vendorId)
-      .throwIfNotFound();
-
-    // Transform bill payment DTO to model object.
-    const billPaymentObj = await this.transformDTOToModel(
-      tenantId,
-      billPaymentDTO,
-      vendor,
-      oldBillPayment
-    );
-    // Validate vendor not modified.
-    this.validateVendorNotModified(billPaymentDTO, oldBillPayment);
-
-    // Validate the payment account existance and type.
-    const paymentAccount = await this.getPaymentAccountOrThrowError(
-      tenantId,
-      billPaymentObj.paymentAccountId
-    );
-    // Validate the items entries IDs existance on the storage.
-    await this.validateEntriesIdsExistance(
-      tenantId,
-      billPaymentId,
-      billPaymentObj.entries
-    );
-    // Validate the bills existance and associated to the given vendor.
-    await this.validateBillsExistance(
-      tenantId,
-      billPaymentObj.entries,
-      billPaymentDTO.vendorId
-    );
-    // Validates the bills due payment amount.
-    await this.validateBillsDueAmount(
-      tenantId,
-      billPaymentObj.entries,
-      oldBillPayment.entries
-    );
-    // Validate the payment number uniquiness.
-    if (billPaymentObj.paymentNumber) {
-      await this.validatePaymentNumber(
-        tenantId,
-        billPaymentObj.paymentNumber,
-        billPaymentId
-      );
-    }
-    // Validates the withdrawal account currency code.
-    this.validateWithdrawalAccountCurrency(
-      paymentAccount.currencyCode,
-      vendor.currencyCode,
-      tenantMeta.baseCurrency
-    );
-    // Edits the bill transactions with associated transactions
-    // under unit-of-work envirement.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillPaymentEditing` event.
-      await this.eventPublisher.emitAsync(events.billPayment.onEditing, {
-        tenantId,
-        oldBillPayment,
-        billPaymentDTO,
-        trx,
-      } as IBillPaymentEditingPayload);
-
-      // Deletes the bill payment transaction graph from the storage.
-      const billPayment = await BillPayment.query(trx).upsertGraphAndFetch({
-        id: billPaymentId,
-        ...billPaymentObj,
-      });
-      // Triggers `onBillPaymentEdited` event.
-      await this.eventPublisher.emitAsync(events.billPayment.onEdited, {
-        tenantId,
-        billPaymentId,
-        billPayment,
-        oldBillPayment,
-        trx,
-      } as IBillPaymentEventEditedPayload);
-
-      return billPayment;
-    });
-  }
-
-  /**
-   * Deletes the bill payment and associated transactions.
-   * @param  {number} tenantId - Tenant id.
-   * @param  {Integer} billPaymentId - The given bill payment id.
-   * @return {Promise}
-   */
-  public async deleteBillPayment(tenantId: number, billPaymentId: number) {
-    const { BillPayment, BillPaymentEntry } = this.tenancy.models(tenantId);
-
-    // Retrieve the bill payment or throw not found service error.
-    const oldBillPayment = await this.getPaymentMadeOrThrowError(
-      tenantId,
-      billPaymentId
-    );
-    // Deletes the bill transactions with associated transactions under
-    // unit-of-work envirement.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillPaymentDeleting` payload.
-      await this.eventPublisher.emitAsync(events.billPayment.onDeleting, {
-        tenantId,
-        trx,
-        oldBillPayment,
-      } as IBillPaymentDeletingPayload);
-
-      // Deletes the bill payment assocaited entries.
-      await BillPaymentEntry.query(trx)
-        .where('bill_payment_id', billPaymentId)
-        .delete();
-
-      // Deletes the bill payment transaction.
-      await BillPayment.query(trx).where('id', billPaymentId).delete();
-
-      // Triggers `onBillPaymentDeleted` event.
-      await this.eventPublisher.emitAsync(events.billPayment.onDeleted, {
-        tenantId,
-        billPaymentId,
-        oldBillPayment,
-        trx,
-      } as IBillPaymentEventDeletedPayload);
-    });
-  }
-
-  /**
-   * Retrieve payment made associated bills.
-   * @param {number} tenantId -
-   * @param {number} billPaymentId -
-   */
-  public async getPaymentBills(tenantId: number, billPaymentId: number) {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    const billPayment = await this.getPaymentMadeOrThrowError(
-      tenantId,
-      billPaymentId
-    );
-    const paymentBillsIds = billPayment.entries.map((entry) => entry.id);
-
-    const bills = await Bill.query().whereIn('id', paymentBillsIds);
-
-    return bills;
-  }
-
-  /**
-   * Retrieve bill payment.
-   * @param {number} tenantId
-   * @param {number} billPyamentId
-   * @return {Promise<IBillPayment>}
-   */
-  public async getBillPayment(
-    tenantId: number,
-    billPyamentId: number
-  ): Promise<IBillPayment> {
-    const { BillPayment } = this.tenancy.models(tenantId);
-
-    const billPayment = await BillPayment.query()
-      .withGraphFetched('entries.bill')
-      .withGraphFetched('vendor')
-      .withGraphFetched('paymentAccount')
-      .withGraphFetched('transactions')
-      .withGraphFetched('branch')
-      .findById(billPyamentId);
-
-    if (!billPayment) {
-      throw new ServiceError(ERRORS.PAYMENT_MADE_NOT_FOUND);
-    }
-    return this.transformer.transform(
-      tenantId,
-      billPayment,
-      new BillPaymentTransformer()
-    );
-  }
-
-  private parseListFilterDTO(filterDTO) {
-    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
-  }
-
-  /**
-   * Retrieve bill payment paginted and filterable list.
-   * @param {number} tenantId
-   * @param {IBillPaymentsFilter} billPaymentsFilter
-   */
-  public async listBillPayments(
-    tenantId: number,
-    filterDTO: IBillPaymentsFilter
-  ): Promise<{
-    billPayments: IBillPayment;
-    pagination: IPaginationMeta;
-    filterMeta: IFilterMeta;
-  }> {
-    const { BillPayment } = this.tenancy.models(tenantId);
-
-    // Parses filter DTO.
-    const filter = this.parseListFilterDTO(filterDTO);
-
-    // Dynamic list service.
-    const dynamicList = await this.dynamicListService.dynamicList(
-      tenantId,
-      BillPayment,
-      filter
-    );
-
-    const { results, pagination } = await BillPayment.query()
-      .onBuild((builder) => {
-        builder.withGraphFetched('vendor');
-        builder.withGraphFetched('paymentAccount');
-
-        dynamicList.buildQuery()(builder);
-      })
-      .pagination(filter.page - 1, filter.pageSize);
-
-    // Transformes the bill payments models to POJO.
-    const billPayments = await this.transformer.transform(
-      tenantId,
-      results,
-      new BillPaymentTransformer()
-    );
-    return {
-      billPayments,
-      pagination,
-      filterMeta: dynamicList.getResponseMeta(),
-    };
-  }
-
-  /**
-   * Saves bills payment amount changes different.
-   * @param {number} tenantId -
-   * @param {IBillPaymentEntryDTO[]} paymentMadeEntries -
-   * @param {IBillPaymentEntryDTO[]} oldPaymentMadeEntries -
-   */
-  public async saveChangeBillsPaymentAmount(
-    tenantId: number,
-    paymentMadeEntries: IBillPaymentEntryDTO[],
-    oldPaymentMadeEntries?: IBillPaymentEntryDTO[],
-    trx?: Knex.Transaction
-  ): Promise<void> {
-    const { Bill } = this.tenancy.models(tenantId);
-    const opers: Promise<void>[] = [];
-
-    const diffEntries = entriesAmountDiff(
-      paymentMadeEntries,
-      oldPaymentMadeEntries,
-      'paymentAmount',
-      'billId'
-    );
-    diffEntries.forEach(
-      (diffEntry: { paymentAmount: number; billId: number }) => {
-        if (diffEntry.paymentAmount === 0) {
-          return;
-        }
-        const oper = Bill.changePaymentAmount(
-          diffEntry.billId,
-          diffEntry.paymentAmount,
-          trx
-        );
-        opers.push(oper);
-      }
-    );
-    await Promise.all(opers);
-  }
-
-  /**
-   * Validates the given vendor has no associated payments.
-   * @param {number} tenantId
-   * @param {number} vendorId
-   */
-  public async validateVendorHasNoPayments(tenantId: number, vendorId: number) {
-    const { BillPayment } = this.tenancy.models(tenantId);
-
-    const payments = await BillPayment.query().where('vendor_id', vendorId);
-
-    if (payments.length > 0) {
-      throw new ServiceError(ERRORS.VENDOR_HAS_PAYMENTS);
-    }
-  }
-}
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentsApplication.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentsApplication.ts
@@ -0,0 +1,109 @@
+import { Inject, Service } from 'typedi';
+import { IBillPaymentDTO, IBillPayment } from '@/interfaces';
+import { CreateBillPayment } from './CreateBillPayment';
+import { DeleteBillPayment } from './DeleteBillPayment';
+import { EditBillPayment } from './EditBillPayment';
+import { GetBillPayments } from './GetBillPayments';
+import { GetBillPayment } from './GetBillPayment';
+import { GetPaymentBills } from './GetPaymentBills';
+
+/**
+ * Bill payments application.
+ * @service
+ */
+@Service()
+export class BillPaymentsApplication {
+  @Inject()
+  private createBillPaymentService: CreateBillPayment;
+
+  @Inject()
+  private deleteBillPaymentService: DeleteBillPayment;
+
+  @Inject()
+  private editBillPaymentService: EditBillPayment;
+
+  @Inject()
+  private getBillPaymentsService: GetBillPayments;
+
+  @Inject()
+  private getBillPaymentService: GetBillPayment;
+
+  @Inject()
+  private getPaymentBillsService: GetPaymentBills;
+
+  /**
+   * Creates a bill payment with associated GL entries.
+   * @param {number} tenantId
+   * @param {IBillPaymentDTO} billPaymentDTO
+   * @returns {Promise<IBillPayment>}
+   */
+  public createBillPayment(
+    tenantId: number,
+    billPaymentDTO: IBillPaymentDTO
+  ): Promise<IBillPayment> {
+    return this.createBillPaymentService.createBillPayment(
+      tenantId,
+      billPaymentDTO
+    );
+  }
+
+  /**
+   * Delets the given bill payment with associated GL entries.
+   * @param {number} tenantId
+   * @param {number} billPaymentId
+   */
+  public deleteBillPayment(tenantId: number, billPaymentId: number) {
+    return this.deleteBillPaymentService.deleteBillPayment(
+      tenantId,
+      billPaymentId
+    );
+  }
+
+  /**
+   * Edits the given bill payment with associated GL entries.
+   * @param {number} tenantId
+   * @param {number} billPaymentId
+   * @param billPaymentDTO
+   * @returns {Promise<IBillPayment>}
+   */
+  public editBillPayment(
+    tenantId: number,
+    billPaymentId: number,
+    billPaymentDTO
+  ): Promise<IBillPayment> {
+    return this.editBillPaymentService.editBillPayment(
+      tenantId,
+      billPaymentId,
+      billPaymentDTO
+    );
+  }
+
+  /**
+   * Retrieves bill payments list.
+   * @param {number} tenantId
+   * @param filterDTO
+   * @returns
+   */
+  public getBillPayments(tenantId: number, filterDTO: IBillPaymentsFilter) {
+    return this.getBillPaymentsService.getBillPayments(tenantId, filterDTO);
+  }
+
+  /**
+   * Retrieve specific bill payment.
+   * @param {number} tenantId
+   * @param {number} billPyamentId
+   * @returns
+   */
+  public getBillPayment(tenantId: number, billPyamentId: number) {
+    return this.getBillPaymentService.getBillPayment(tenantId, billPyamentId);
+  }
+
+  /**
+   * Retrieve payment made associated bills.
+   * @param {number} tenantId -
+   * @param {number} billPaymentId -
+   */
+  public getPaymentBills(tenantId: number, billPaymentId: number) {
+    return this.getPaymentBillsService.getPaymentBills(tenantId, billPaymentId);
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/BillPaymentsPages.ts
+++ b/packages/server/src/services/Purchases/BillPayments/BillPaymentsPages.ts
@@ -5,13 +5,10 @@ import { IBill, IBillPayment, IBillReceivePageEntry } from '@/interfaces';
 import { ERRORS } from './constants';
 import { ServiceError } from '@/exceptions';

-/**
- * Bill payments edit and create pages services.
- */
@Service()
 export default class BillPaymentsPages {
  @Inject()
-  tenancy: TenancyService;
+  private tenancy: TenancyService;

  /**
   * Retrieve bill payment with associated metadata.
--- a/packages/server/src/services/Purchases/BillPayments/CommandBillPaymentDTOTransformer.ts
+++ b/packages/server/src/services/Purchases/BillPayments/CommandBillPaymentDTOTransformer.ts
@@ -0,0 +1,37 @@
+import { Inject, Service } from 'typedi';
+import * as R from 'ramda';
+import { sumBy } from 'lodash';
+import { IBillPayment, IBillPaymentDTO, IVendor } from '@/interfaces';
+import { BranchTransactionDTOTransform } from '@/services/Branches/Integrations/BranchTransactionDTOTransform';
+import { formatDateFields } from '@/utils';
+
+@Service()
+export class CommandBillPaymentDTOTransformer {
+  @Inject()
+  private branchDTOTransform: BranchTransactionDTOTransform;
+
+  /**
+   * Transforms create/edit DTO to model.
+   * @param {number} tenantId
+   * @param {IBillPaymentDTO} billPaymentDTO - Bill payment.
+   * @param {IBillPayment} oldBillPayment - Old bill payment.
+   * @return {Promise<IBillPayment>}
+   */
+  public async transformDTOToModel(
+    tenantId: number,
+    billPaymentDTO: IBillPaymentDTO,
+    vendor: IVendor,
+    oldBillPayment?: IBillPayment
+  ): Promise<IBillPayment> {
+    const initialDTO = {
+      ...formatDateFields(billPaymentDTO, ['paymentDate']),
+      amount: sumBy(billPaymentDTO.entries, 'paymentAmount'),
+      currencyCode: vendor.currencyCode,
+      exchangeRate: billPaymentDTO.exchangeRate || 1,
+      entries: billPaymentDTO.entries,
+    };
+    return R.compose(
+      this.branchDTOTransform.transformDTO<IBillPayment>(tenantId)
+    )(initialDTO);
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/CreateBillPayment.ts
+++ b/packages/server/src/services/Purchases/BillPayments/CreateBillPayment.ts
@@ -0,0 +1,124 @@
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import {
+  IBillPaymentDTO,
+  IBillPayment,
+  IBillPaymentEventCreatedPayload,
+  IBillPaymentCreatingPayload,
+} from '@/interfaces';
+import { TenantMetadata } from '@/system/models';
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import { BillPaymentValidators } from './BillPaymentValidators';
+import { CommandBillPaymentDTOTransformer } from './CommandBillPaymentDTOTransformer';
+
+@Service()
+export class CreateBillPayment {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private validators: BillPaymentValidators;
+
+  @Inject()
+  private commandTransformerDTO: CommandBillPaymentDTOTransformer;
+
+  /**
+   * Creates a new bill payment transcations and store it to the storage
+   * with associated bills entries and journal transactions.
+   * ------
+   * Precedures:-
+   * ------
+   * - Records the bill payment transaction.
+   * - Records the bill payment associated entries.
+   * - Increment the payment amount of the given vendor bills.
+   * - Decrement the vendor balance.
+   * - Records payment journal entries.
+   * ------
+   * @param {number} tenantId - Tenant id.
+   * @param {BillPaymentDTO} billPayment - Bill payment object.
+   */
+  public async createBillPayment(
+    tenantId: number,
+    billPaymentDTO: IBillPaymentDTO
+  ): Promise<IBillPayment> {
+    const { BillPayment, Contact } = this.tenancy.models(tenantId);
+
+    const tenantMeta = await TenantMetadata.query().findOne({ tenantId });
+
+    // Retrieves the payment vendor or throw not found error.
+    const vendor = await Contact.query()
+      .findById(billPaymentDTO.vendorId)
+      .modify('vendor')
+      .throwIfNotFound();
+
+    // Transform create DTO to model object.
+    const billPaymentObj = await this.commandTransformerDTO.transformDTOToModel(
+      tenantId,
+      billPaymentDTO,
+      vendor
+    );
+    // Validate the payment account existance and type.
+    const paymentAccount = await this.validators.getPaymentAccountOrThrowError(
+      tenantId,
+      billPaymentObj.paymentAccountId
+    );
+    // Validate the payment number uniquiness.
+    if (billPaymentObj.paymentNumber) {
+      await this.validators.validatePaymentNumber(
+        tenantId,
+        billPaymentObj.paymentNumber
+      );
+    }
+    // Validates the bills existance and associated to the given vendor.
+    await this.validators.validateBillsExistance(
+      tenantId,
+      billPaymentObj.entries,
+      billPaymentDTO.vendorId
+    );
+    // Validates the bills due payment amount.
+    await this.validators.validateBillsDueAmount(
+      tenantId,
+      billPaymentObj.entries
+    );
+    // Validates the withdrawal account currency code.
+    this.validators.validateWithdrawalAccountCurrency(
+      paymentAccount.currencyCode,
+      vendor.currencyCode,
+      tenantMeta.baseCurrency
+    );
+    // Writes bill payment transacation with associated transactions
+    // under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillPaymentCreating` event.
+      await this.eventPublisher.emitAsync(events.billPayment.onCreating, {
+        tenantId,
+        billPaymentDTO,
+        trx,
+      } as IBillPaymentCreatingPayload);
+
+      // Writes the bill payment graph to the storage.
+      const billPayment = await BillPayment.query(trx).insertGraphAndFetch({
+        ...billPaymentObj,
+      });
+
+      // Triggers `onBillPaymentCreated` event.
+      await this.eventPublisher.emitAsync(events.billPayment.onCreated, {
+        tenantId,
+        billPayment,
+        billPaymentId: billPayment.id,
+        trx,
+      } as IBillPaymentEventCreatedPayload);
+
+      return billPayment;
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/DeleteBillPayment.ts
+++ b/packages/server/src/services/Purchases/BillPayments/DeleteBillPayment.ts
@@ -0,0 +1,71 @@
+import { Knex } from 'knex';
+import UnitOfWork from '@/services/UnitOfWork';
+import { BillPaymentValidators } from './BillPaymentValidators';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Inject, Service } from 'typedi';
+import {
+  IBillPaymentDeletingPayload,
+  IBillPaymentEventDeletedPayload,
+} from '@/interfaces';
+import events from '@/subscribers/events';
+
+@Service()
+export class DeleteBillPayment {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private validators: BillPaymentValidators;
+
+  /**
+   * Deletes the bill payment and associated transactions.
+   * @param  {number} tenantId - Tenant id.
+   * @param  {Integer} billPaymentId - The given bill payment id.
+   * @return {Promise}
+   */
+  public async deleteBillPayment(tenantId: number, billPaymentId: number) {
+    const { BillPayment, BillPaymentEntry } = this.tenancy.models(tenantId);
+
+    // Retrieve the bill payment or throw not found service error.
+    const oldBillPayment = await BillPayment.query()
+      .withGraphFetched('entries')
+      .findById(billPaymentId);
+
+    // Validates the bill payment existance.
+    this.validators.validateBillPaymentExistance(oldBillPayment);
+
+    // Deletes the bill transactions with associated transactions under
+    // unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillPaymentDeleting` payload.
+      await this.eventPublisher.emitAsync(events.billPayment.onDeleting, {
+        tenantId,
+        trx,
+        oldBillPayment,
+      } as IBillPaymentDeletingPayload);
+
+      // Deletes the bill payment assocaited entries.
+      await BillPaymentEntry.query(trx)
+        .where('bill_payment_id', billPaymentId)
+        .delete();
+
+      // Deletes the bill payment transaction.
+      await BillPayment.query(trx).where('id', billPaymentId).delete();
+
+      // Triggers `onBillPaymentDeleted` event.
+      await this.eventPublisher.emitAsync(events.billPayment.onDeleted, {
+        tenantId,
+        billPaymentId,
+        oldBillPayment,
+        trx,
+      } as IBillPaymentEventDeletedPayload);
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/EditBillPayment.ts
+++ b/packages/server/src/services/Purchases/BillPayments/EditBillPayment.ts
@@ -0,0 +1,146 @@
+import { Inject, Service } from 'typedi';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import { BillPaymentValidators } from './BillPaymentValidators';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import {
+  IBillPayment,
+  IBillPaymentEditingPayload,
+  IBillPaymentEventEditedPayload,
+} from '@/interfaces';
+import events from '@/subscribers/events';
+import { Knex } from 'knex';
+import UnitOfWork from '@/services/UnitOfWork';
+import { CommandBillPaymentDTOTransformer } from './CommandBillPaymentDTOTransformer';
+import { TenantMetadata } from '@/system/models';
+
+@Service()
+export class EditBillPayment {
+  @Inject()
+  private validators: BillPaymentValidators;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private transformer: CommandBillPaymentDTOTransformer;
+
+  /**
+   * Edits the details of the given bill payment.
+   *
+   * Preceducres:
+   * ------
+   * - Update the bill payment transaction.
+   * - Insert the new bill payment entries that have no ids.
+   * - Update the bill paymeny entries that have ids.
+   * - Delete the bill payment entries that not presented.
+   * - Re-insert the journal transactions and update the diff accounts balance.
+   * - Update the diff vendor balance.
+   * - Update the diff bill payment amount.
+   * ------
+   * @param {number} tenantId - Tenant id
+   * @param {Integer} billPaymentId
+   * @param {BillPaymentDTO} billPayment
+   * @param {IBillPayment} oldBillPayment
+   */
+  public async editBillPayment(
+    tenantId: number,
+    billPaymentId: number,
+    billPaymentDTO
+  ): Promise<IBillPayment> {
+    const { BillPayment, Contact } = this.tenancy.models(tenantId);
+
+    const tenantMeta = await TenantMetadata.query().findOne({ tenantId });
+
+    const oldBillPayment = await BillPayment.query().findById(billPaymentId);
+
+    // Validates the bill payment existance.
+    this.validators.validateBillPaymentExistance(oldBillPayment);
+
+    //
+    const vendor = await Contact.query()
+      .modify('vendor')
+      .findById(billPaymentDTO.vendorId)
+      .throwIfNotFound();
+
+    // Transform bill payment DTO to model object.
+    const billPaymentObj = await this.transformer.transformDTOToModel(
+      tenantId,
+      billPaymentDTO,
+      vendor,
+      oldBillPayment
+    );
+    // Validate vendor not modified.
+    this.validators.validateVendorNotModified(billPaymentDTO, oldBillPayment);
+
+    // Validate the payment account existance and type.
+    const paymentAccount = await this.validators.getPaymentAccountOrThrowError(
+      tenantId,
+      billPaymentObj.paymentAccountId
+    );
+    // Validate the items entries IDs existance on the storage.
+    await this.validators.validateEntriesIdsExistance(
+      tenantId,
+      billPaymentId,
+      billPaymentObj.entries
+    );
+    // Validate the bills existance and associated to the given vendor.
+    await this.validators.validateBillsExistance(
+      tenantId,
+      billPaymentObj.entries,
+      billPaymentDTO.vendorId
+    );
+    // Validates the bills due payment amount.
+    await this.validators.validateBillsDueAmount(
+      tenantId,
+      billPaymentObj.entries,
+      oldBillPayment.entries
+    );
+    // Validate the payment number uniquiness.
+    if (billPaymentObj.paymentNumber) {
+      await this.validators.validatePaymentNumber(
+        tenantId,
+        billPaymentObj.paymentNumber,
+        billPaymentId
+      );
+    }
+    // Validates the withdrawal account currency code.
+    this.validators.validateWithdrawalAccountCurrency(
+      paymentAccount.currencyCode,
+      vendor.currencyCode,
+      tenantMeta.baseCurrency
+    );
+    // Edits the bill transactions with associated transactions
+    // under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillPaymentEditing` event.
+      await this.eventPublisher.emitAsync(events.billPayment.onEditing, {
+        tenantId,
+        oldBillPayment,
+        billPaymentDTO,
+        trx,
+      } as IBillPaymentEditingPayload);
+
+      // Deletes the bill payment transaction graph from the storage.
+      const billPayment = await BillPayment.query(trx).upsertGraphAndFetch({
+        id: billPaymentId,
+        ...billPaymentObj,
+      });
+      // Triggers `onBillPaymentEdited` event.
+      await this.eventPublisher.emitAsync(events.billPayment.onEdited, {
+        tenantId,
+        billPaymentId,
+        billPayment,
+        oldBillPayment,
+        trx,
+      } as IBillPaymentEventEditedPayload);
+
+      return billPayment;
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/GetBillPayment.ts
+++ b/packages/server/src/services/Purchases/BillPayments/GetBillPayment.ts
@@ -0,0 +1,51 @@
+import { IBillPayment } from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Inject, Service } from 'typedi';
+import { ERRORS } from './constants';
+import { ServiceError } from '@/exceptions';
+import { BillPaymentTransformer } from './BillPaymentTransformer';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import { BillsValidators } from '../Bills/BillsValidators';
+import { BillPaymentValidators } from './BillPaymentValidators';
+
+@Service()
+export class GetBillPayment {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  @Inject()
+  private validators: BillPaymentValidators;
+
+  /**
+   * Retrieve bill payment.
+   * @param {number} tenantId
+   * @param {number} billPyamentId
+   * @return {Promise<IBillPayment>}
+   */
+  public async getBillPayment(
+    tenantId: number,
+    billPyamentId: number
+  ): Promise<IBillPayment> {
+    const { BillPayment } = this.tenancy.models(tenantId);
+
+    const billPayment = await BillPayment.query()
+      .withGraphFetched('entries.bill')
+      .withGraphFetched('vendor')
+      .withGraphFetched('paymentAccount')
+      .withGraphFetched('transactions')
+      .withGraphFetched('branch')
+      .findById(billPyamentId);
+
+    // Validates the bill payment existance.
+    this.validators.validateBillPaymentExistance(billPayment);
+
+    return this.transformer.transform(
+      tenantId,
+      billPayment,
+      new BillPaymentTransformer()
+    );
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/GetBillPayments.ts
+++ b/packages/server/src/services/Purchases/BillPayments/GetBillPayments.ts
@@ -0,0 +1,74 @@
+import { Inject, Service } from 'typedi';
+import * as R from 'ramda';
+import {
+  IBillPayment,
+  IBillPaymentsFilter,
+  IPaginationMeta,
+  IFilterMeta,
+} from '@/interfaces';
+import { BillPaymentTransformer } from './BillPaymentTransformer';
+import DynamicListingService from '@/services/DynamicListing/DynamicListService';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+
+@Service()
+export class GetBillPayments {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private dynamicListService: DynamicListingService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  /**
+   * Retrieve bill payment paginted and filterable list.
+   * @param {number} tenantId
+   * @param {IBillPaymentsFilter} billPaymentsFilter
+   */
+  public async getBillPayments(
+    tenantId: number,
+    filterDTO: IBillPaymentsFilter
+  ): Promise<{
+    billPayments: IBillPayment;
+    pagination: IPaginationMeta;
+    filterMeta: IFilterMeta;
+  }> {
+    const { BillPayment } = this.tenancy.models(tenantId);
+
+    // Parses filter DTO.
+    const filter = this.parseListFilterDTO(filterDTO);
+
+    // Dynamic list service.
+    const dynamicList = await this.dynamicListService.dynamicList(
+      tenantId,
+      BillPayment,
+      filter
+    );
+    const { results, pagination } = await BillPayment.query()
+      .onBuild((builder) => {
+        builder.withGraphFetched('vendor');
+        builder.withGraphFetched('paymentAccount');
+
+        dynamicList.buildQuery()(builder);
+      })
+      .pagination(filter.page - 1, filter.pageSize);
+
+    // Transformes the bill payments models to POJO.
+    const billPayments = await this.transformer.transform(
+      tenantId,
+      results,
+      new BillPaymentTransformer()
+    );
+    return {
+      billPayments,
+      pagination,
+      filterMeta: dynamicList.getResponseMeta(),
+    };
+  }
+
+  private parseListFilterDTO(filterDTO) {
+    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
+  }
+}
--- a/packages/server/src/services/Purchases/BillPayments/GetPaymentBills.ts
+++ b/packages/server/src/services/Purchases/BillPayments/GetPaymentBills.ts
@@ -0,0 +1,32 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { BillPaymentValidators } from './BillPaymentValidators';
+
+@Service()
+export class GetPaymentBills {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private validators: BillPaymentValidators;
+
+  /**
+   * Retrieve payment made associated bills.
+   * @param {number} tenantId -
+   * @param {number} billPaymentId -
+   */
+  public async getPaymentBills(tenantId: number, billPaymentId: number) {
+    const { Bill, BillPayment } = this.tenancy.models(tenantId);
+
+    const billPayment = await BillPayment.query().findById(billPaymentId);
+
+    // Validates the bill payment existance.
+    this.validators.validateBillPaymentExistance(billPayment);
+
+    const paymentBillsIds = billPayment.entries.map((entry) => entry.id);
+
+    const bills = await Bill.query().whereIn('id', paymentBillsIds);
+
+    return bills;
+  }
+}
--- a/packages/server/src/services/Purchases/Bills.ts
+++ b/packages/server/src/services/Purchases/Bills.ts
@@ -1,751 +0,0 @@
-import { omit, sumBy } from 'lodash';
-import moment from 'moment';
-import { Inject, Service } from 'typedi';
-import * as R from 'ramda';
-import { Knex } from 'knex';
-import composeAsync from 'async/compose';
-import events from '@/subscribers/events';
-import InventoryService from '@/services/Inventory/Inventory';
-import SalesInvoicesCost from '@/services/Sales/SalesInvoicesCost';
-import TenancyService from '@/services/Tenancy/TenancyService';
-import DynamicListingService from '@/services/DynamicListing/DynamicListService';
-import { formatDateFields, transformToMap } from 'utils';
-import {
-  IBillDTO,
-  IBill,
-  ISystemUser,
-  IBillEditDTO,
-  IPaginationMeta,
-  IFilterMeta,
-  IBillsFilter,
-  IBillsService,
-  IItemEntry,
-  IItemEntryDTO,
-  IBillCreatedPayload,
-  IBillEditedPayload,
-  IBIllEventDeletedPayload,
-  IBillEventDeletingPayload,
-  IBillEditingPayload,
-  IBillCreatingPayload,
-  IVendor,
-} from '@/interfaces';
-import { ServiceError } from '@/exceptions';
-import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
-import JournalPosterService from '@/services/Sales/JournalPosterService';
-import { ERRORS } from './constants';
-import EntriesService from '@/services/Entries';
-import { PurchaseInvoiceTransformer } from './PurchaseInvoices/PurchaseInvoiceTransformer';
-import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
-import UnitOfWork from '@/services/UnitOfWork';
-import { BranchTransactionDTOTransform } from '@/services/Branches/Integrations/BranchTransactionDTOTransform';
-import { WarehouseTransactionDTOTransform } from '@/services/Warehouses/Integrations/WarehouseTransactionDTOTransform';
-import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
-
-/**
- * Vendor bills services.
- * @service
- */
-@Service('Bills')
-export default class BillsService
-  extends SalesInvoicesCost
-  implements IBillsService
-{
-  @Inject()
-  inventoryService: InventoryService;
-
-  @Inject()
-  tenancy: TenancyService;
-
-  @Inject()
-  eventPublisher: EventPublisher;
-
-  @Inject('logger')
-  logger: any;
-
-  @Inject()
-  dynamicListService: DynamicListingService;
-
-  @Inject()
-  itemsEntriesService: ItemsEntriesService;
-
-  @Inject()
-  journalPosterService: JournalPosterService;
-
-  @Inject()
-  entriesService: EntriesService;
-
-  @Inject()
-  transformer: TransformerInjectable;
-
-  @Inject()
-  uow: UnitOfWork;
-
-  @Inject()
-  private branchDTOTransform: BranchTransactionDTOTransform;
-
-  @Inject()
-  private warehouseDTOTransform: WarehouseTransactionDTOTransform;
-
-  /**
-   * Validates the given bill existance.
-   * @async
-   * @param {number} tenantId -
-   * @param {number} billId -
-   */
-  public async getBillOrThrowError(tenantId: number, billId: number) {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    const foundBill = await Bill.query()
-      .findById(billId)
-      .withGraphFetched('entries');
-
-    if (!foundBill) {
-      throw new ServiceError(ERRORS.BILL_NOT_FOUND);
-    }
-    return foundBill;
-  }
-
-  /**
-   * Validates the bill number existance.
-   * @async
-   * @param {Request} req
-   * @param {Response} res
-   * @param {Function} next
-   */
-  private async validateBillNumberExists(
-    tenantId: number,
-    billNumber: string,
-    notBillId?: number
-  ) {
-    const { Bill } = this.tenancy.models(tenantId);
-    const foundBills = await Bill.query()
-      .where('bill_number', billNumber)
-      .onBuild((builder) => {
-        if (notBillId) {
-          builder.whereNot('id', notBillId);
-        }
-      });
-
-    if (foundBills.length > 0) {
-      throw new ServiceError(ERRORS.BILL_NUMBER_EXISTS);
-    }
-  }
-
-  /**
-   * Validate the bill has no payment entries.
-   * @param {number} tenantId
-   * @param {number} billId - Bill id.
-   */
-  private async validateBillHasNoEntries(tenantId, billId: number) {
-    const { BillPaymentEntry } = this.tenancy.models(tenantId);
-
-    // Retireve the bill associate payment made entries.
-    const entries = await BillPaymentEntry.query().where('bill_id', billId);
-
-    if (entries.length > 0) {
-      throw new ServiceError(ERRORS.BILL_HAS_ASSOCIATED_PAYMENT_ENTRIES);
-    }
-    return entries;
-  }
-
-  /**
-   * Validate the bill number require.
-   * @param {string} billNo -
-   */
-  private validateBillNoRequire(billNo: string) {
-    if (!billNo) {
-      throw new ServiceError(ERRORS.BILL_NO_IS_REQUIRED);
-    }
-  }
-
-  /**
-   * Validate bill transaction has no associated allocated landed cost transactions.
-   * @param {number} tenantId
-   * @param {number} billId
-   */
-  private async validateBillHasNoLandedCost(tenantId: number, billId: number) {
-    const { BillLandedCost } = this.tenancy.models(tenantId);
-
-    const billLandedCosts = await BillLandedCost.query().where(
-      'billId',
-      billId
-    );
-    if (billLandedCosts.length > 0) {
-      throw new ServiceError(ERRORS.BILL_HAS_ASSOCIATED_LANDED_COSTS);
-    }
-  }
-
-  /**
-   * Validate transaction entries that have landed cost type should not be
-   * inventory items.
-   * @param {number} tenantId -
-   * @param {IItemEntryDTO[]} newEntriesDTO -
-   */
-  public async validateCostEntriesShouldBeInventoryItems(
-    tenantId: number,
-    newEntriesDTO: IItemEntryDTO[]
-  ) {
-    const { Item } = this.tenancy.models(tenantId);
-
-    const entriesItemsIds = newEntriesDTO.map((e) => e.itemId);
-    const entriesItems = await Item.query().whereIn('id', entriesItemsIds);
-
-    const entriesItemsById = transformToMap(entriesItems, 'id');
-
-    // Filter the landed cost entries that not associated with inventory item.
-    const nonInventoryHasCost = newEntriesDTO.filter((entry) => {
-      const item = entriesItemsById.get(entry.itemId);
-
-      return entry.landedCost && item.type !== 'inventory';
-    });
-    if (nonInventoryHasCost.length > 0) {
-      throw new ServiceError(
-        ERRORS.LANDED_COST_ENTRIES_SHOULD_BE_INVENTORY_ITEMS
-      );
-    }
-  }
-
-  /**
-   * Sets the default cost account to the bill entries.
-   */
-  private setBillEntriesDefaultAccounts(tenantId: number) {
-    return async (entries: IItemEntry[]) => {
-      const { Item } = this.tenancy.models(tenantId);
-
-      const entriesItemsIds = entries.map((e) => e.itemId);
-      const items = await Item.query().whereIn('id', entriesItemsIds);
-
-      return entries.map((entry) => {
-        const item = items.find((i) => i.id === entry.itemId);
-
-        return {
-          ...entry,
-          ...(item.type !== 'inventory' && {
-            costAccountId: entry.costAccountId || item.costAccountId,
-          }),
-        };
-      });
-    };
-  }
-
-  /**
-   * Retrieve the bill entries total.
-   * @param {IItemEntry[]} entries
-   * @returns {number}
-   */
-  private getBillEntriesTotal(tenantId: number, entries: IItemEntry[]): number {
-    const { ItemEntry } = this.tenancy.models(tenantId);
-
-    return sumBy(entries, (e) => ItemEntry.calcAmount(e));
-  }
-
-  /**
-   * Retrieve the bill landed cost amount.
-   * @param {IBillDTO} billDTO
-   * @returns {number}
-   */
-  private getBillLandedCostAmount(tenantId: number, billDTO: IBillDTO): number {
-    const costEntries = billDTO.entries.filter((entry) => entry.landedCost);
-
-    return this.getBillEntriesTotal(tenantId, costEntries);
-  }
-
-  /**
-   * Converts create bill DTO to model.
-   * @param   {number} tenantId
-   * @param   {IBillDTO} billDTO
-   * @param   {IBill} oldBill
-   * @returns {IBill}
-   */
-  private async billDTOToModel(
-    tenantId: number,
-    billDTO: IBillDTO,
-    vendor: IVendor,
-    authorizedUser: ISystemUser,
-    oldBill?: IBill
-  ) {
-    const { ItemEntry } = this.tenancy.models(tenantId);
-
-    const amount = sumBy(billDTO.entries, (e) => ItemEntry.calcAmount(e));
-
-    // Retrieve the landed cost amount from landed cost entries.
-    const landedCostAmount = this.getBillLandedCostAmount(tenantId, billDTO);
-
-    // Bill number from DTO or from auto-increment.
-    const billNumber = billDTO.billNumber || oldBill?.billNumber;
-
-    const initialEntries = billDTO.entries.map((entry) => ({
-      reference_type: 'Bill',
-      ...omit(entry, ['amount']),
-    }));
-    const entries = await composeAsync(
-      // Sets the default cost account to the bill entries.
-      this.setBillEntriesDefaultAccounts(tenantId)
-    )(initialEntries);
-
-    const initialDTO = {
-      ...formatDateFields(omit(billDTO, ['open', 'entries']), [
-        'billDate',
-        'dueDate',
-      ]),
-      amount,
-      landedCostAmount,
-      currencyCode: vendor.currencyCode,
-      exchangeRate: billDTO.exchangeRate || 1,
-      billNumber,
-      entries,
-      // Avoid rewrite the open date in edit mode when already opened.
-      ...(billDTO.open &&
-        !oldBill?.openedAt && {
-          openedAt: moment().toMySqlDateTime(),
-        }),
-      userId: authorizedUser.id,
-    };
-    return R.compose(
-      this.branchDTOTransform.transformDTO(tenantId),
-      this.warehouseDTOTransform.transformDTO(tenantId)
-    )(initialDTO);
-  }
-
-  /**
-   * Creates a new bill and stored it to the storage.
-   * ----
-   * Precedures.
-   * ----
-   * - Insert bill transactions to the storage.
-   * - Insert bill entries to the storage.
-   * - Increment the given vendor id.
-   * - Record bill journal transactions on the given accounts.
-   * - Record bill items inventory transactions.
-   * ----
-   * @param  {number} tenantId - The given tenant id.
-   * @param  {IBillDTO} billDTO -
-   * @return {Promise<IBill>}
-   */
-  public async createBill(
-    tenantId: number,
-    billDTO: IBillDTO,
-    authorizedUser: ISystemUser
-  ): Promise<IBill> {
-    const { Bill, Contact } = this.tenancy.models(tenantId);
-
-    // Retrieves the given bill vendor or throw not found error.
-    const vendor = await Contact.query()
-      .modify('vendor')
-      .findById(billDTO.vendorId)
-      .throwIfNotFound();
-
-    // Validate the bill number uniqiness on the storage.
-    await this.validateBillNumberExists(tenantId, billDTO.billNumber);
-
-    // Validate items IDs existance.
-    await this.itemsEntriesService.validateItemsIdsExistance(
-      tenantId,
-      billDTO.entries
-    );
-    // Validate non-purchasable items.
-    await this.itemsEntriesService.validateNonPurchasableEntriesItems(
-      tenantId,
-      billDTO.entries
-    );
-    // Validates the cost entries should be with inventory items.
-    await this.validateCostEntriesShouldBeInventoryItems(
-      tenantId,
-      billDTO.entries
-    );
-    // Transform the bill DTO to model object.
-    const billObj = await this.billDTOToModel(
-      tenantId,
-      billDTO,
-      vendor,
-      authorizedUser
-    );
-    // Write new bill transaction with associated transactions under UOW env.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillCreating` event.
-      await this.eventPublisher.emitAsync(events.bill.onCreating, {
-        trx,
-        billDTO,
-        tenantId,
-      } as IBillCreatingPayload);
-
-      // Inserts the bill graph object to the storage.
-      const bill = await Bill.query(trx).upsertGraph(billObj);
-
-      // Triggers `onBillCreated` event.
-      await this.eventPublisher.emitAsync(events.bill.onCreated, {
-        tenantId,
-        bill,
-        billId: bill.id,
-        trx,
-      } as IBillCreatedPayload);
-
-      return bill;
-    });
-  }
-
-  /**
-   * Edits details of the given bill id with associated entries.
-   *
-   * Precedures:
-   * -------
-   * - Update the bill transaction on the storage.
-   * - Update the bill entries on the storage and insert the not have id and delete
-   *   once that not presented.
-   * - Increment the diff amount on the given vendor id.
-   * - Re-write the inventory transactions.
-   * - Re-write the bill journal transactions.
-   * ------
-   * @param {number} tenantId - The given tenant id.
-   * @param {Integer} billId - The given bill id.
-   * @param {IBillEditDTO} billDTO - The given new bill details.
-   * @return {Promise<IBill>}
-   */
-  public async editBill(
-    tenantId: number,
-    billId: number,
-    billDTO: IBillEditDTO,
-    authorizedUser: ISystemUser
-  ): Promise<IBill> {
-    const { Bill, Contact } = this.tenancy.models(tenantId);
-
-    const oldBill = await this.getBillOrThrowError(tenantId, billId);
-
-    // Retrieve vendor details or throw not found service error.
-    const vendor = await Contact.query()
-      .findById(billDTO.vendorId)
-      .modify('vendor')
-      .throwIfNotFound();
-
-    // Validate bill number uniqiness on the storage.
-    if (billDTO.billNumber) {
-      await this.validateBillNumberExists(tenantId, billDTO.billNumber, billId);
-    }
-    // Validate the entries ids existance.
-    await this.itemsEntriesService.validateEntriesIdsExistance(
-      tenantId,
-      billId,
-      'Bill',
-      billDTO.entries
-    );
-    // Validate the items ids existance on the storage.
-    await this.itemsEntriesService.validateItemsIdsExistance(
-      tenantId,
-      billDTO.entries
-    );
-    // Accept the purchasable items only.
-    await this.itemsEntriesService.validateNonPurchasableEntriesItems(
-      tenantId,
-      billDTO.entries
-    );
-    // Transforms the bill DTO to model object.
-    const billObj = await this.billDTOToModel(
-      tenantId,
-      billDTO,
-      vendor,
-      authorizedUser,
-      oldBill
-    );
-    // Validate landed cost entries that have allocated cost could not be deleted.
-    await this.entriesService.validateLandedCostEntriesNotDeleted(
-      oldBill.entries,
-      billObj.entries
-    );
-    // Validate new landed cost entries should be bigger than new entries.
-    await this.entriesService.validateLocatedCostEntriesSmallerThanNewEntries(
-      oldBill.entries,
-      billObj.entries
-    );
-    // Edits bill transactions and associated transactions under UOW envirement.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillEditing` event.
-      await this.eventPublisher.emitAsync(events.bill.onEditing, {
-        trx,
-        tenantId,
-        oldBill,
-        billDTO,
-      } as IBillEditingPayload);
-
-      // Update the bill transaction.
-      const bill = await Bill.query(trx).upsertGraph({
-        id: billId,
-        ...billObj,
-      });
-      // Triggers event `onBillEdited`.
-      await this.eventPublisher.emitAsync(events.bill.onEdited, {
-        tenantId,
-        billId,
-        oldBill,
-        bill,
-        trx,
-      } as IBillEditedPayload);
-
-      return bill;
-    });
-  }
-
-  /**
-   * Deletes the bill with associated entries.
-   * @param {Integer} billId
-   * @return {void}
-   */
-  public async deleteBill(tenantId: number, billId: number) {
-    const { ItemEntry, Bill } = this.tenancy.models(tenantId);
-
-    // Retrieve the given bill or throw not found error.
-    const oldBill = await this.getBillOrThrowError(tenantId, billId);
-
-    // Validate the givne bill has no associated landed cost transactions.
-    await this.validateBillHasNoLandedCost(tenantId, billId);
-
-    // Validate the purchase bill has no assocaited payments transactions.
-    await this.validateBillHasNoEntries(tenantId, billId);
-
-    // Validate the given bill has no associated reconciled with vendor credits.
-    await this.validateBillHasNoAppliedToCredit(tenantId, billId);
-
-    // Deletes bill transaction with associated transactions under
-    // unit-of-work envirement.
-    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
-      // Triggers `onBillDeleting` event.
-      await this.eventPublisher.emitAsync(events.bill.onDeleting, {
-        trx,
-        tenantId,
-        oldBill,
-      } as IBillEventDeletingPayload);
-
-      // Delete all associated bill entries.
-      await ItemEntry.query(trx)
-        .where('reference_type', 'Bill')
-        .where('reference_id', billId)
-        .delete();
-
-      // Delete the bill transaction.
-      await Bill.query(trx).findById(billId).delete();
-
-      // Triggers `onBillDeleted` event.
-      await this.eventPublisher.emitAsync(events.bill.onDeleted, {
-        tenantId,
-        billId,
-        oldBill,
-        trx,
-      } as IBIllEventDeletedPayload);
-    });
-  }
-
-  validateBillHasNoAppliedToCredit = async (
-    tenantId: number,
-    billId: number
-  ) => {
-    const { VendorCreditAppliedBill } = this.tenancy.models(tenantId);
-
-    const appliedTransactions = await VendorCreditAppliedBill.query().where(
-      'billId',
-      billId
-    );
-    if (appliedTransactions.length > 0) {
-      throw new ServiceError(ERRORS.BILL_HAS_APPLIED_TO_VENDOR_CREDIT);
-    }
-  };
-
-  /**
-   * Parses bills list filter DTO.
-   * @param filterDTO -
-   */
-  private parseListFilterDTO(filterDTO) {
-    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
-  }
-
-  /**
-   * Retrieve bills data table list.
-   * @param {number} tenantId -
-   * @param {IBillsFilter} billsFilter -
-   */
-  public async getBills(
-    tenantId: number,
-    filterDTO: IBillsFilter
-  ): Promise<{
-    bills: IBill;
-    pagination: IPaginationMeta;
-    filterMeta: IFilterMeta;
-  }> {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    // Parses bills list filter DTO.
-    const filter = this.parseListFilterDTO(filterDTO);
-
-    // Dynamic list service.
-    const dynamicFilter = await this.dynamicListService.dynamicList(
-      tenantId,
-      Bill,
-      filter
-    );
-    const { results, pagination } = await Bill.query()
-      .onBuild((builder) => {
-        builder.withGraphFetched('vendor');
-        dynamicFilter.buildQuery()(builder);
-      })
-      .pagination(filter.page - 1, filter.pageSize);
-
-    // Tranform the bills to POJO.
-    const bills = await this.transformer.transform(
-      tenantId,
-      results,
-      new PurchaseInvoiceTransformer()
-    );
-    return {
-      bills,
-      pagination,
-      filterMeta: dynamicFilter.getResponseMeta(),
-    };
-  }
-
-  /**
-   * Retrieve all due bills or for specific given vendor id.
-   * @param {number} tenantId -
-   * @param {number} vendorId -
-   */
-  public async getDueBills(
-    tenantId: number,
-    vendorId?: number
-  ): Promise<IBill[]> {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    const dueBills = await Bill.query().onBuild((query) => {
-      query.orderBy('bill_date', 'DESC');
-      query.modify('dueBills');
-
-      if (vendorId) {
-        query.where('vendor_id', vendorId);
-      }
-    });
-    return dueBills;
-  }
-
-  /**
-   * Retrieve the given bill details with associated items entries.
-   * @param {Integer} billId - Specific bill.
-   * @returns {Promise<IBill>}
-   */
-  public async getBill(tenantId: number, billId: number): Promise<IBill> {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    const bill = await Bill.query()
-      .findById(billId)
-      .withGraphFetched('vendor')
-      .withGraphFetched('entries.item')
-      .withGraphFetched('branch');
-
-    if (!bill) {
-      throw new ServiceError(ERRORS.BILL_NOT_FOUND);
-    }
-    return this.transformer.transform(
-      tenantId,
-      bill,
-      new PurchaseInvoiceTransformer()
-    );
-  }
-
-  /**
-   * Mark the bill as open.
-   * @param {number} tenantId
-   * @param {number} billId
-   */
-  public async openBill(tenantId: number, billId: number): Promise<void> {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    // Retrieve the given bill or throw not found error.
-    const oldBill = await this.getBillOrThrowError(tenantId, billId);
-
-    if (oldBill.isOpen) {
-      throw new ServiceError(ERRORS.BILL_ALREADY_OPEN);
-    }
-    //
-    return this.uow.withTransaction(tenantId, async (trx) => {
-      // Record the bill opened at on the storage.
-      await Bill.query(trx).findById(billId).patch({
-        openedAt: moment().toMySqlDateTime(),
-      });
-    });
-  }
-
-  /**
-   * Records the inventory transactions from the given bill input.
-   * @param  {Bill} bill - Bill model object.
-   * @param  {number} billId - Bill id.
-   * @return {Promise<void>}
-   */
-  public async recordInventoryTransactions(
-    tenantId: number,
-    billId: number,
-    override?: boolean,
-    trx?: Knex.Transaction
-  ): Promise<void> {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    // Retireve bill with assocaited entries and allocated cost entries.
-    const bill = await Bill.query(trx)
-      .findById(billId)
-      .withGraphFetched('entries.allocatedCostEntries');
-
-    // Loads the inventory items entries of the given sale invoice.
-    const inventoryEntries =
-      await this.itemsEntriesService.filterInventoryEntries(
-        tenantId,
-        bill.entries
-      );
-    const transaction = {
-      transactionId: bill.id,
-      transactionType: 'Bill',
-      exchangeRate: bill.exchangeRate,
-
-      date: bill.billDate,
-      direction: 'IN',
-      entries: inventoryEntries,
-      createdAt: bill.createdAt,
-
-      warehouseId: bill.warehouseId,
-    };
-    await this.inventoryService.recordInventoryTransactionsFromItemsEntries(
-      tenantId,
-      transaction,
-      override,
-      trx
-    );
-  }
-
-  /**
-   * Reverts the inventory transactions of the given bill id.
-   * @param {number} tenantId - Tenant id.
-   * @param {number} billId - Bill id.
-   * @return {Promise<void>}
-   */
-  public async revertInventoryTransactions(
-    tenantId: number,
-    billId: number,
-    trx?: Knex.Transaction
-  ) {
-    // Deletes the inventory transactions by the given reference id and type.
-    await this.inventoryService.deleteInventoryTransactions(
-      tenantId,
-      billId,
-      'Bill',
-      trx
-    );
-  }
-
-  /**
-   * Validate the given vendor has no associated bills transactions.
-   * @param {number} tenantId
-   * @param {number} vendorId - Vendor id.
-   */
-  public async validateVendorHasNoBills(tenantId: number, vendorId: number) {
-    const { Bill } = this.tenancy.models(tenantId);
-
-    const bills = await Bill.query().where('vendor_id', vendorId);
-
-    if (bills.length > 0) {
-      throw new ServiceError(ERRORS.VENDOR_HAS_BILLS);
-    }
-  }
-}
--- a/packages/server/src/services/Purchases/Bills/BillDTOTransformer.ts
+++ b/packages/server/src/services/Purchases/Bills/BillDTOTransformer.ts
@@ -0,0 +1,130 @@
+import { omit, sumBy } from 'lodash';
+import moment from 'moment';
+import { Inject, Service } from 'typedi';
+import * as R from 'ramda';
+import composeAsync from 'async/compose';
+import { formatDateFields } from 'utils';
+import {
+  IBillDTO,
+  IBill,
+  ISystemUser,
+  IVendor,
+  IItemEntry,
+} from '@/interfaces';
+import { BranchTransactionDTOTransform } from '@/services/Branches/Integrations/BranchTransactionDTOTransform';
+import { WarehouseTransactionDTOTransform } from '@/services/Warehouses/Integrations/WarehouseTransactionDTOTransform';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class BillDTOTransformer {
+  @Inject()
+  private branchDTOTransform: BranchTransactionDTOTransform;
+
+  @Inject()
+  private warehouseDTOTransform: WarehouseTransactionDTOTransform;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Retrieve the bill entries total.
+   * @param {IItemEntry[]} entries
+   * @returns {number}
+   */
+  private getBillEntriesTotal(tenantId: number, entries: IItemEntry[]): number {
+    const { ItemEntry } = this.tenancy.models(tenantId);
+
+    return sumBy(entries, (e) => ItemEntry.calcAmount(e));
+  }
+
+  /**
+   * Retrieve the bill landed cost amount.
+   * @param {IBillDTO} billDTO
+   * @returns {number}
+   */
+  private getBillLandedCostAmount(tenantId: number, billDTO: IBillDTO): number {
+    const costEntries = billDTO.entries.filter((entry) => entry.landedCost);
+
+    return this.getBillEntriesTotal(tenantId, costEntries);
+  }
+
+  /**
+   * Converts create bill DTO to model.
+   * @param   {number} tenantId
+   * @param   {IBillDTO} billDTO
+   * @param   {IBill} oldBill
+   * @returns {IBill}
+   */
+  public async billDTOToModel(
+    tenantId: number,
+    billDTO: IBillDTO,
+    vendor: IVendor,
+    authorizedUser: ISystemUser,
+    oldBill?: IBill
+  ) {
+    const { ItemEntry } = this.tenancy.models(tenantId);
+
+    const amount = sumBy(billDTO.entries, (e) => ItemEntry.calcAmount(e));
+
+    // Retrieve the landed cost amount from landed cost entries.
+    const landedCostAmount = this.getBillLandedCostAmount(tenantId, billDTO);
+
+    // Bill number from DTO or from auto-increment.
+    const billNumber = billDTO.billNumber || oldBill?.billNumber;
+
+    const initialEntries = billDTO.entries.map((entry) => ({
+      reference_type: 'Bill',
+      ...omit(entry, ['amount']),
+    }));
+    const entries = await composeAsync(
+      // Sets the default cost account to the bill entries.
+      this.setBillEntriesDefaultAccounts(tenantId)
+    )(initialEntries);
+
+    const initialDTO = {
+      ...formatDateFields(omit(billDTO, ['open', 'entries']), [
+        'billDate',
+        'dueDate',
+      ]),
+      amount,
+      landedCostAmount,
+      currencyCode: vendor.currencyCode,
+      exchangeRate: billDTO.exchangeRate || 1,
+      billNumber,
+      entries,
+      // Avoid rewrite the open date in edit mode when already opened.
+      ...(billDTO.open &&
+        !oldBill?.openedAt && {
+          openedAt: moment().toMySqlDateTime(),
+        }),
+      userId: authorizedUser.id,
+    };
+    return R.compose(
+      this.branchDTOTransform.transformDTO(tenantId),
+      this.warehouseDTOTransform.transformDTO(tenantId)
+    )(initialDTO);
+  }
+
+  /**
+   * Sets the default cost account to the bill entries.
+   */
+  private setBillEntriesDefaultAccounts(tenantId: number) {
+    return async (entries: IItemEntry[]) => {
+      const { Item } = this.tenancy.models(tenantId);
+
+      const entriesItemsIds = entries.map((e) => e.itemId);
+      const items = await Item.query().whereIn('id', entriesItemsIds);
+
+      return entries.map((entry) => {
+        const item = items.find((i) => i.id === entry.itemId);
+
+        return {
+          ...entry,
+          ...(item.type !== 'inventory' && {
+            costAccountId: entry.costAccountId || item.costAccountId,
+          }),
+        };
+      });
+    };
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/BillGLEntriesSubscriber.ts
+++ b/packages/server/src/services/Purchases/Bills/BillGLEntriesSubscriber.ts
@@ -1,7 +1,5 @@
 import { Inject, Service } from 'typedi';
 import events from '@/subscribers/events';
-import TenancyService from '@/services/Tenancy/TenancyService';
-import BillsService from '@/services/Purchases/Bills';
 import {
  IBillCreatedPayload,
  IBillEditedPayload,
@@ -12,15 +10,12 @@ import { BillGLEntries } from './BillGLEntries';
@Service()
 export class BillGLEntriesSubscriber {
  @Inject()
-  tenancy: TenancyService;
-
-  @Inject()
-  billGLEntries: BillGLEntries;
+  private billGLEntries: BillGLEntries;

  /**
   * Attachs events with handles.
   */
-  attach(bus) {
+  public attach(bus) {
    bus.subscribe(
      events.bill.onCreated,
      this.handlerWriteJournalEntriesOnCreate
--- a/packages/server/src/services/Purchases/Bills/BillInventoryTransactions.ts
+++ b/packages/server/src/services/Purchases/Bills/BillInventoryTransactions.ts
@@ -0,0 +1,82 @@
+import { Knex } from 'knex';
+import { Inject, Service } from 'typedi';
+import InventoryService from '@/services/Inventory/Inventory';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class BillInventoryTransactions {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private inventoryService: InventoryService;
+
+  /**
+   * Records the inventory transactions from the given bill input.
+   * @param  {Bill} bill - Bill model object.
+   * @param  {number} billId - Bill id.
+   * @return {Promise<void>}
+   */
+  public async recordInventoryTransactions(
+    tenantId: number,
+    billId: number,
+    override?: boolean,
+    trx?: Knex.Transaction
+  ): Promise<void> {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    // Retireve bill with assocaited entries and allocated cost entries.
+    const bill = await Bill.query(trx)
+      .findById(billId)
+      .withGraphFetched('entries.allocatedCostEntries');
+
+    // Loads the inventory items entries of the given sale invoice.
+    const inventoryEntries =
+      await this.itemsEntriesService.filterInventoryEntries(
+        tenantId,
+        bill.entries
+      );
+    const transaction = {
+      transactionId: bill.id,
+      transactionType: 'Bill',
+      exchangeRate: bill.exchangeRate,
+
+      date: bill.billDate,
+      direction: 'IN',
+      entries: inventoryEntries,
+      createdAt: bill.createdAt,
+
+      warehouseId: bill.warehouseId,
+    };
+    await this.inventoryService.recordInventoryTransactionsFromItemsEntries(
+      tenantId,
+      transaction,
+      override,
+      trx
+    );
+  }
+
+  /**
+   * Reverts the inventory transactions of the given bill id.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} billId - Bill id.
+   * @return {Promise<void>}
+   */
+  public async revertInventoryTransactions(
+    tenantId: number,
+    billId: number,
+    trx?: Knex.Transaction
+  ) {
+    // Deletes the inventory transactions by the given reference id and type.
+    await this.inventoryService.deleteInventoryTransactions(
+      tenantId,
+      billId,
+      'Bill',
+      trx
+    );
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/BillPaymentsGLEntriesRewriteSubscriber.ts
+++ b/packages/server/src/services/Purchases/Bills/BillPaymentsGLEntriesRewriteSubscriber.ts
@@ -11,7 +11,7 @@ export class BillPaymentsGLEntriesRewriteSubscriber {
  /**
   * Attachs events with handles.
   */
-  attach(bus) {
+  public attach(bus) {
    bus.subscribe(
      events.bill.onEdited,
      this.handlerRewritePaymentsGLOnBillEdited
--- a/packages/server/src/services/Purchases/Bills/BillsApplication.ts
+++ b/packages/server/src/services/Purchases/Bills/BillsApplication.ts
@@ -0,0 +1,147 @@
+import { Inject, Service } from 'typedi';
+import { CreateBill } from './CreateBill';
+import { EditBill } from './EditBill';
+import { GetBill } from './GetBill';
+import { GetBills } from './GetBills';
+import { DeleteBill } from './DeleteBill';
+import {
+  IBill,
+  IBillDTO,
+  IBillEditDTO,
+  IBillsFilter,
+  IFilterMeta,
+  IPaginationMeta,
+  ISystemUser,
+} from '@/interfaces';
+import { GetDueBills } from './GetDueBills';
+import { OpenBill } from './OpenBill';
+import { GetBillPayments } from './GetBillPayments';
+
+@Service()
+export class BillsApplication {
+  @Inject()
+  private createBillService: CreateBill;
+
+  @Inject()
+  private editBillService: EditBill;
+
+  @Inject()
+  private getBillService: GetBill;
+
+  @Inject()
+  private getBillsService: GetBills;
+
+  @Inject()
+  private deleteBillService: DeleteBill;
+
+  @Inject()
+  private getDueBillsService: GetDueBills;
+
+  @Inject()
+  private openBillService: OpenBill;
+
+  @Inject()
+  private getBillPaymentsService: GetBillPayments;
+
+  /**
+   * Creates a new bill with associated GL entries.
+   * @param {number} tenantId
+   * @param {IBillDTO} billDTO
+   * @param {ISystemUser} authorizedUser
+   * @returns
+   */
+  public createBill(
+    tenantId: number,
+    billDTO: IBillDTO,
+    authorizedUser: ISystemUser
+  ): Promise<IBill> {
+    return this.createBillService.createBill(tenantId, billDTO, authorizedUser);
+  }
+
+  /**
+   * Edits the given bill with associated GL entries.
+   * @param {number} tenantId
+   * @param {number} billId
+   * @param {IBillEditDTO} billDTO
+   * @param {ISystemUser} authorizedUser
+   * @returns
+   */
+  public editBill(
+    tenantId: number,
+    billId: number,
+    billDTO: IBillEditDTO,
+    authorizedUser: ISystemUser
+  ): Promise<IBill> {
+    return this.editBillService.editBill(
+      tenantId,
+      billId,
+      billDTO,
+      authorizedUser
+    );
+  }
+
+  /**
+   * Deletes the given bill with associated GL entries.
+   * @param {number} tenantId
+   * @param {number} billId
+   * @returns {Promise<void>}
+   */
+  public deleteBill(tenantId: number, billId: number) {
+    return this.deleteBillService.deleteBill(tenantId, billId);
+  }
+
+  /**
+   * Retrieve bills data table list.
+   * @param {number} tenantId -
+   * @param {IBillsFilter} billsFilter -
+   */
+  public getBills(
+    tenantId: number,
+    filterDTO: IBillsFilter
+  ): Promise<{
+    bills: IBill;
+    pagination: IPaginationMeta;
+    filterMeta: IFilterMeta;
+  }> {
+    return this.getBillsService.getBills(tenantId, filterDTO);
+  }
+
+  /**
+   * Retrieves the given bill details.
+   * @param {number} tenantId
+   * @param {number} billId
+   * @returns
+   */
+  public getBill(tenantId: number, billId: number): Promise<IBill> {
+    return this.getBillService.getBill(tenantId, billId);
+  }
+
+  /**
+   * Open the given bill.
+   * @param {number} tenantId
+   * @param {number} billId
+   * @returns {Promise<void>}
+   */
+  public openBill(tenantId: number, billId: number): Promise<void> {
+    return this.openBillService.openBill(tenantId, billId);
+  }
+
+  /**
+   * Retrieves due bills of the given vendor.
+   * @param {number} tenantId
+   * @param {number} vendorId
+   * @returns
+   */
+  public getDueBills(tenantId: number, vendorId?: number) {
+    return this.getDueBillsService.getDueBills(tenantId, vendorId);
+  }
+
+  /**
+   * Retrieve the specific bill associated payment transactions.
+   * @param {number} tenantId
+   * @param {number} billId
+   */
+  public getBillPayments = async (tenantId: number, billId: number) => {
+    return this.getBillPaymentsService.getBillPayments(tenantId, billId);
+  };
+}
--- a/packages/server/src/services/Purchases/Bills/BillsValidators.ts
+++ b/packages/server/src/services/Purchases/Bills/BillsValidators.ts
@@ -0,0 +1,154 @@
+import { ServiceError } from '@/exceptions';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Inject, Service } from 'typedi';
+import { ERRORS } from './constants';
+import { IItemEntryDTO } from '@/interfaces';
+import { transformToMap } from '@/utils';
+import { Bill } from '@/models';
+
+@Service()
+export class BillsValidators {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Validates the bill existance.
+   * @param {Bill | undefined | null} bill
+   */
+  public validateBillExistance(bill: Bill | undefined | null) {
+    if (!bill) {
+      throw new ServiceError(ERRORS.BILL_NOT_FOUND);
+    }
+  }
+
+  /**
+   * Validates the bill number existance.
+   */
+  public async validateBillNumberExists(
+    tenantId: number,
+    billNumber: string,
+    notBillId?: number
+  ) {
+    const { Bill } = this.tenancy.models(tenantId);
+    const foundBills = await Bill.query()
+      .where('bill_number', billNumber)
+      .onBuild((builder) => {
+        if (notBillId) {
+          builder.whereNot('id', notBillId);
+        }
+      });
+
+    if (foundBills.length > 0) {
+      throw new ServiceError(ERRORS.BILL_NUMBER_EXISTS);
+    }
+  }
+
+  /**
+   * Validate the bill has no payment entries.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} billId - Bill id.
+   */
+  public async validateBillHasNoEntries(tenantId, billId: number) {
+    const { BillPaymentEntry } = this.tenancy.models(tenantId);
+
+    // Retireve the bill associate payment made entries.
+    const entries = await BillPaymentEntry.query().where('bill_id', billId);
+
+    if (entries.length > 0) {
+      throw new ServiceError(ERRORS.BILL_HAS_ASSOCIATED_PAYMENT_ENTRIES);
+    }
+    return entries;
+  }
+
+  /**
+   * Validate the bill number require.
+   * @param {string} billNo -
+   */
+  public validateBillNoRequire(billNo: string) {
+    if (!billNo) {
+      throw new ServiceError(ERRORS.BILL_NO_IS_REQUIRED);
+    }
+  }
+
+  /**
+   * Validate bill transaction has no associated allocated landed cost transactions.
+   * @param {number} tenantId
+   * @param {number} billId
+   */
+  public async validateBillHasNoLandedCost(tenantId: number, billId: number) {
+    const { BillLandedCost } = this.tenancy.models(tenantId);
+
+    const billLandedCosts = await BillLandedCost.query().where(
+      'billId',
+      billId
+    );
+    if (billLandedCosts.length > 0) {
+      throw new ServiceError(ERRORS.BILL_HAS_ASSOCIATED_LANDED_COSTS);
+    }
+  }
+
+  /**
+   * Validate transaction entries that have landed cost type should not be
+   * inventory items.
+   * @param {number} tenantId -
+   * @param {IItemEntryDTO[]} newEntriesDTO -
+   */
+  public async validateCostEntriesShouldBeInventoryItems(
+    tenantId: number,
+    newEntriesDTO: IItemEntryDTO[]
+  ) {
+    const { Item } = this.tenancy.models(tenantId);
+
+    const entriesItemsIds = newEntriesDTO.map((e) => e.itemId);
+    const entriesItems = await Item.query().whereIn('id', entriesItemsIds);
+
+    const entriesItemsById = transformToMap(entriesItems, 'id');
+
+    // Filter the landed cost entries that not associated with inventory item.
+    const nonInventoryHasCost = newEntriesDTO.filter((entry) => {
+      const item = entriesItemsById.get(entry.itemId);
+
+      return entry.landedCost && item.type !== 'inventory';
+    });
+    if (nonInventoryHasCost.length > 0) {
+      throw new ServiceError(
+        ERRORS.LANDED_COST_ENTRIES_SHOULD_BE_INVENTORY_ITEMS
+      );
+    }
+  }
+
+  /**
+   *
+   * @param {number} tenantId
+   * @param {number} billId
+   */
+  public validateBillHasNoAppliedToCredit = async (
+    tenantId: number,
+    billId: number
+  ) => {
+    const { VendorCreditAppliedBill } = this.tenancy.models(tenantId);
+
+    const appliedTransactions = await VendorCreditAppliedBill.query().where(
+      'billId',
+      billId
+    );
+    if (appliedTransactions.length > 0) {
+      throw new ServiceError(ERRORS.BILL_HAS_APPLIED_TO_VENDOR_CREDIT);
+    }
+  };
+
+  /**
+   * Validate the given vendor has no associated bills transactions.
+   * @param {number} tenantId
+   * @param {number} vendorId - Vendor id.
+   */
+  public async validateVendorHasNoBills(tenantId: number, vendorId: number) {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    const bills = await Bill.query().where('vendor_id', vendorId);
+
+    if (bills.length > 0) {
+      throw new ServiceError(ERRORS.VENDOR_HAS_BILLS);
+    }
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/CreateBill.ts
+++ b/packages/server/src/services/Purchases/Bills/CreateBill.ts
@@ -0,0 +1,116 @@
+import { Inject, Service } from 'typedi';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import {
+  IBillDTO,
+  IBill,
+  ISystemUser,
+  IBillCreatedPayload,
+  IBillCreatingPayload,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import { BillsValidators } from './BillsValidators';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import { BillDTOTransformer } from './BillDTOTransformer';
+
+@Service()
+export class CreateBill {
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private validators: BillsValidators;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private transformerDTO: BillDTOTransformer;
+
+  /**
+   * Creates a new bill and stored it to the storage.
+   * ----
+   * Precedures.
+   * ----
+   * - Insert bill transactions to the storage.
+   * - Insert bill entries to the storage.
+   * - Increment the given vendor id.
+   * - Record bill journal transactions on the given accounts.
+   * - Record bill items inventory transactions.
+   * ----
+   * @param  {number} tenantId - The given tenant id.
+   * @param  {IBillDTO} billDTO -
+   * @return {Promise<IBill>}
+   */
+  public async createBill(
+    tenantId: number,
+    billDTO: IBillDTO,
+    authorizedUser: ISystemUser
+  ): Promise<IBill> {
+    const { Bill, Contact } = this.tenancy.models(tenantId);
+
+    // Retrieves the given bill vendor or throw not found error.
+    const vendor = await Contact.query()
+      .modify('vendor')
+      .findById(billDTO.vendorId)
+      .throwIfNotFound();
+
+    // Validate the bill number uniqiness on the storage.
+    await this.validators.validateBillNumberExists(
+      tenantId,
+      billDTO.billNumber
+    );
+    // Validate items IDs existance.
+    await this.itemsEntriesService.validateItemsIdsExistance(
+      tenantId,
+      billDTO.entries
+    );
+    // Validate non-purchasable items.
+    await this.itemsEntriesService.validateNonPurchasableEntriesItems(
+      tenantId,
+      billDTO.entries
+    );
+    // Validates the cost entries should be with inventory items.
+    await this.validators.validateCostEntriesShouldBeInventoryItems(
+      tenantId,
+      billDTO.entries
+    );
+    // Transform the bill DTO to model object.
+    const billObj = await this.transformerDTO.billDTOToModel(
+      tenantId,
+      billDTO,
+      vendor,
+      authorizedUser
+    );
+    // Write new bill transaction with associated transactions under UOW env.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillCreating` event.
+      await this.eventPublisher.emitAsync(events.bill.onCreating, {
+        trx,
+        billDTO,
+        tenantId,
+      } as IBillCreatingPayload);
+
+      // Inserts the bill graph object to the storage.
+      const bill = await Bill.query(trx).upsertGraph(billObj);
+
+      // Triggers `onBillCreated` event.
+      await this.eventPublisher.emitAsync(events.bill.onCreated, {
+        tenantId,
+        bill,
+        billId: bill.id,
+        trx,
+      } as IBillCreatedPayload);
+
+      return bill;
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/DeleteBill.ts
+++ b/packages/server/src/services/Purchases/Bills/DeleteBill.ts
@@ -0,0 +1,80 @@
+import { Inject, Service } from 'typedi';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import {
+  IBIllEventDeletedPayload,
+  IBillEventDeletingPayload,
+} from '@/interfaces';
+import { BillsValidators } from './BillsValidators';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+
+@Service()
+export class DeleteBill {
+  @Inject()
+  private validators: BillsValidators;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Deletes the bill with associated entries.
+   * @param {number} billId
+   * @return {void}
+   */
+  public async deleteBill(tenantId: number, billId: number) {
+    const { ItemEntry, Bill } = this.tenancy.models(tenantId);
+
+    // Retrieve the given bill or throw not found error.
+    const oldBill = await Bill.query()
+      .findById(billId)
+      .withGraphFetched('entries');
+
+    // Validates the bill existance.
+    this.validators.validateBillExistance(oldBill);
+
+    // Validate the givne bill has no associated landed cost transactions.
+    await this.validators.validateBillHasNoLandedCost(tenantId, billId);
+
+    // Validate the purchase bill has no assocaited payments transactions.
+    await this.validators.validateBillHasNoEntries(tenantId, billId);
+
+    // Validate the given bill has no associated reconciled with vendor credits.
+    await this.validators.validateBillHasNoAppliedToCredit(tenantId, billId);
+
+    // Deletes bill transaction with associated transactions under
+    // unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillDeleting` event.
+      await this.eventPublisher.emitAsync(events.bill.onDeleting, {
+        trx,
+        tenantId,
+        oldBill,
+      } as IBillEventDeletingPayload);
+
+      // Delete all associated bill entries.
+      await ItemEntry.query(trx)
+        .where('reference_type', 'Bill')
+        .where('reference_id', billId)
+        .delete();
+
+      // Delete the bill transaction.
+      await Bill.query(trx).findById(billId).delete();
+
+      // Triggers `onBillDeleted` event.
+      await this.eventPublisher.emitAsync(events.bill.onDeleted, {
+        tenantId,
+        billId,
+        oldBill,
+        trx,
+      } as IBIllEventDeletedPayload);
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/EditBill.ts
+++ b/packages/server/src/services/Purchases/Bills/EditBill.ts
@@ -0,0 +1,151 @@
+import {
+  IBill,
+  IBillEditDTO,
+  IBillEditedPayload,
+  IBillEditingPayload,
+  ISystemUser,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { Inject, Service } from 'typedi';
+import { BillsValidators } from './BillsValidators';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { Knex } from 'knex';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import events from '@/subscribers/events';
+import EntriesService from '@/services/Entries';
+import { BillDTOTransformer } from './BillDTOTransformer';
+
+@Service()
+export class EditBill {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private validators: BillsValidators;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private entriesService: EntriesService;
+
+  @Inject()
+  private transformerDTO: BillDTOTransformer;
+
+  /**
+   * Edits details of the given bill id with associated entries.
+   *
+   * Precedures:
+   * -------
+   * - Update the bill transaction on the storage.
+   * - Update the bill entries on the storage and insert the not have id and delete
+   *   once that not presented.
+   * - Increment the diff amount on the given vendor id.
+   * - Re-write the inventory transactions.
+   * - Re-write the bill journal transactions.
+   * ------
+   * @param {number} tenantId - The given tenant id.
+   * @param {Integer} billId - The given bill id.
+   * @param {IBillEditDTO} billDTO - The given new bill details.
+   * @return {Promise<IBill>}
+   */
+  public async editBill(
+    tenantId: number,
+    billId: number,
+    billDTO: IBillEditDTO,
+    authorizedUser: ISystemUser
+  ): Promise<IBill> {
+    const { Bill, Contact } = this.tenancy.models(tenantId);
+
+    // Retrieve the given bill or throw not found error.
+    const oldBill = await Bill.query()
+      .findById(billId)
+      .withGraphFetched('entries');
+
+    // Validate bill existance.
+    this.validators.validateBillExistance(oldBill);
+
+    // Retrieve vendor details or throw not found service error.
+    const vendor = await Contact.query()
+      .findById(billDTO.vendorId)
+      .modify('vendor')
+      .throwIfNotFound();
+
+    // Validate bill number uniqiness on the storage.
+    if (billDTO.billNumber) {
+      await this.validators.validateBillNumberExists(
+        tenantId,
+        billDTO.billNumber,
+        billId
+      );
+    }
+    // Validate the entries ids existance.
+    await this.itemsEntriesService.validateEntriesIdsExistance(
+      tenantId,
+      billId,
+      'Bill',
+      billDTO.entries
+    );
+    // Validate the items ids existance on the storage.
+    await this.itemsEntriesService.validateItemsIdsExistance(
+      tenantId,
+      billDTO.entries
+    );
+    // Accept the purchasable items only.
+    await this.itemsEntriesService.validateNonPurchasableEntriesItems(
+      tenantId,
+      billDTO.entries
+    );
+    // Transforms the bill DTO to model object.
+    const billObj = await this.transformerDTO.billDTOToModel(
+      tenantId,
+      billDTO,
+      vendor,
+      authorizedUser,
+      oldBill
+    );
+    // Validate landed cost entries that have allocated cost could not be deleted.
+    await this.entriesService.validateLandedCostEntriesNotDeleted(
+      oldBill.entries,
+      billObj.entries
+    );
+    // Validate new landed cost entries should be bigger than new entries.
+    await this.entriesService.validateLocatedCostEntriesSmallerThanNewEntries(
+      oldBill.entries,
+      billObj.entries
+    );
+    // Edits bill transactions and associated transactions under UOW envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onBillEditing` event.
+      await this.eventPublisher.emitAsync(events.bill.onEditing, {
+        trx,
+        tenantId,
+        oldBill,
+        billDTO,
+      } as IBillEditingPayload);
+
+      // Update the bill transaction.
+      const bill = await Bill.query(trx).upsertGraph({
+        id: billId,
+        ...billObj,
+      });
+      // Triggers event `onBillEdited`.
+      await this.eventPublisher.emitAsync(events.bill.onEdited, {
+        tenantId,
+        billId,
+        oldBill,
+        bill,
+        trx,
+      } as IBillEditedPayload);
+
+      return bill;
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/GetBill.ts
+++ b/packages/server/src/services/Purchases/Bills/GetBill.ts
@@ -0,0 +1,42 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import { IBill } from '@/interfaces';
+import { BillsValidators } from './BillsValidators';
+import { PurchaseInvoiceTransformer } from './PurchaseInvoiceTransformer';
+
+@Service()
+export class GetBill {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  @Inject()
+  private validators: BillsValidators;
+
+  /**
+   * Retrieve the given bill details with associated items entries.
+   * @param {Integer} billId - Specific bill.
+   * @returns {Promise<IBill>}
+   */
+  public async getBill(tenantId: number, billId: number): Promise<IBill> {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    const bill = await Bill.query()
+      .findById(billId)
+      .withGraphFetched('vendor')
+      .withGraphFetched('entries.item')
+      .withGraphFetched('branch');
+
+    // Validates the bill existance.
+    this.validators.validateBillExistance(bill);
+
+    return this.transformer.transform(
+      tenantId,
+      bill,
+      new PurchaseInvoiceTransformer()
+    );
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/GetBillPayments.ts
+++ b/packages/server/src/services/Purchases/Bills/GetBillPayments.ts
@@ -1,10 +1,10 @@
 import { Service, Inject } from 'typedi';
 import TenancyService from '@/services/Tenancy/TenancyService';
-import { BillPaymentTransactionTransformer } from './BillPayments/BillPaymentTransactionTransformer';
+import { BillPaymentTransactionTransformer } from '../BillPayments/BillPaymentTransactionTransformer';
 import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';

@Service()
-export default class BillPaymentsService {
+export class GetBillPayments {
  @Inject()
  private tenancy: TenancyService;

--- a/packages/server/src/services/Purchases/Bills/GetBills.ts
+++ b/packages/server/src/services/Purchases/Bills/GetBills.ts
@@ -0,0 +1,76 @@
+import { Inject, Service } from 'typedi';
+import * as R from 'ramda';
+import {
+  IBill,
+  IBillsFilter,
+  IFilterMeta,
+  IPaginationMeta,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { PurchaseInvoiceTransformer } from './PurchaseInvoiceTransformer';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import DynamicListingService from '@/services/DynamicListing/DynamicListService';
+
+@Service()
+export class GetBills {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  @Inject()
+  private dynamicListService: DynamicListingService;
+
+  /**
+   * Retrieve bills data table list.
+   * @param {number} tenantId -
+   * @param {IBillsFilter} billsFilter -
+   */
+  public async getBills(
+    tenantId: number,
+    filterDTO: IBillsFilter
+  ): Promise<{
+    bills: IBill;
+    pagination: IPaginationMeta;
+    filterMeta: IFilterMeta;
+  }> {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    // Parses bills list filter DTO.
+    const filter = this.parseListFilterDTO(filterDTO);
+
+    // Dynamic list service.
+    const dynamicFilter = await this.dynamicListService.dynamicList(
+      tenantId,
+      Bill,
+      filter
+    );
+    const { results, pagination } = await Bill.query()
+      .onBuild((builder) => {
+        builder.withGraphFetched('vendor');
+        dynamicFilter.buildQuery()(builder);
+      })
+      .pagination(filter.page - 1, filter.pageSize);
+
+    // Tranform the bills to POJO.
+    const bills = await this.transformer.transform(
+      tenantId,
+      results,
+      new PurchaseInvoiceTransformer()
+    );
+    return {
+      bills,
+      pagination,
+      filterMeta: dynamicFilter.getResponseMeta(),
+    };
+  }
+
+  /**
+   * Parses bills list filter DTO.
+   * @param filterDTO -
+   */
+  private parseListFilterDTO(filterDTO) {
+    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/GetDueBills.ts
+++ b/packages/server/src/services/Purchases/Bills/GetDueBills.ts
@@ -0,0 +1,32 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { IBill } from '@/interfaces';
+
+@Service()
+export class GetDueBills {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Retrieve all due bills or for specific given vendor id.
+   * @param {number} tenantId -
+   * @param {number} vendorId -
+   */
+  public async getDueBills(
+    tenantId: number,
+    vendorId?: number
+  ): Promise<IBill[]> {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    const dueBills = await Bill.query().onBuild((query) => {
+      query.orderBy('bill_date', 'DESC');
+      query.modify('dueBills');
+
+      if (vendorId) {
+        query.where('vendor_id', vendorId);
+      }
+    });
+    return dueBills;
+  }
+}
--- a/packages/server/src/services/Purchases/Bills/OpenBill.ts
+++ b/packages/server/src/services/Purchases/Bills/OpenBill.ts
@@ -0,0 +1,46 @@
+import moment from 'moment';
+import { Inject, Service } from 'typedi';
+import { ServiceError } from '@/exceptions';
+import { ERRORS } from './constants';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { BillsValidators } from './BillsValidators';
+
+@Service()
+export class OpenBill {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private validators: BillsValidators;
+
+  /**
+   * Mark the bill as open.
+   * @param {number} tenantId
+   * @param {number} billId
+   */
+  public async openBill(tenantId: number, billId: number): Promise<void> {
+    const { Bill } = this.tenancy.models(tenantId);
+
+    // Retrieve the given bill or throw not found error.
+    const oldBill = await Bill.query()
+      .findById(billId)
+      .withGraphFetched('entries');
+
+    // Validates the bill existance.
+    this.validators.validateBillExistance(oldBill);
+
+    if (oldBill.isOpen) {
+      throw new ServiceError(ERRORS.BILL_ALREADY_OPEN);
+    }
+    return this.uow.withTransaction(tenantId, async (trx) => {
+      // Record the bill opened at on the storage.
+      await Bill.query(trx).findById(billId).patch({
+        openedAt: moment().toMySqlDateTime(),
+      });
+    });
+  }
+}
--- a/packages/server/src/services/Purchases/PurchaseInvoices/PurchaseInvoiceTransformer.ts
+++ b/packages/server/src/services/Purchases/PurchaseInvoices/PurchaseInvoiceTransformer.ts
--- a/packages/server/src/services/Purchases/Bills/constants.ts
+++ b/packages/server/src/services/Purchases/Bills/constants.ts
--- a/packages/server/src/services/Purchases/LandedCost/AllocateLandedCost.ts
+++ b/packages/server/src/services/Purchases/LandedCost/AllocateLandedCost.ts
@@ -41,13 +41,16 @@ export default class AllocateLandedCost extends BaseLandedCostService {
    allocateCostDTO: ILandedCostDTO,
    billId: number
  ): Promise<IBillLandedCost> => {
-    const { BillLandedCost } = this.tenancy.models(tenantId);
+    const { BillLandedCost, Bill } = this.tenancy.models(tenantId);

    // Retrieve total cost of allocated items.
    const amount = this.getAllocateItemsCostTotal(allocateCostDTO);

    // Retrieve the purchase invoice or throw not found error.
-    const bill = await this.billsService.getBillOrThrowError(tenantId, billId);
+    const bill = await Bill.query()
+      .findById(billId)
+      .withGraphFetched('entries')
+      .throwIfNotFound();

    // Retrieve landed cost transaction or throw not found service error.
    const costTransaction = await this.getLandedCostOrThrowError(
--- a/packages/server/src/services/Purchases/LandedCost/BaseLandedCost.ts
+++ b/packages/server/src/services/Purchases/LandedCost/BaseLandedCost.ts
@@ -1,6 +1,5 @@
 import { Inject, Service } from 'typedi';
 import { difference, sumBy } from 'lodash';
-import BillsService from '../Bills';
 import { ServiceError } from '@/exceptions';
 import {
  IItemEntry,
@@ -13,14 +12,10 @@ import {
 } from '@/interfaces';
 import HasTenancyService from '@/services/Tenancy/TenancyService';
 import TransactionLandedCost from './TransctionLandedCost';
-import { ERRORS } from './utils';
-import { CONFIG } from './utils';
+import { ERRORS, CONFIG } from './utils';

@Service()
 export default class BaseLandedCostService {
-  @Inject()
-  public billsService: BillsService;
-
  @Inject()
  public tenancy: HasTenancyService;

--- a/packages/server/src/services/Purchases/LandedCost/LandedCostSyncCostTransactionsSubscriber.ts
+++ b/packages/server/src/services/Purchases/LandedCost/LandedCostSyncCostTransactionsSubscriber.ts
@@ -9,7 +9,7 @@ import LandedCostSyncCostTransactions from './LandedCostSyncCostTransactions';
@Service()
 export default class LandedCostSyncCostTransactionsSubscriber {
  @Inject()
-  landedCostSyncCostTransaction: LandedCostSyncCostTransactions;
+  private landedCostSyncCostTransaction: LandedCostSyncCostTransactions;

  /**
   * Attaches events with handlers.
--- a/packages/server/src/services/Purchases/LandedCost/LandedCostTransactions.ts
+++ b/packages/server/src/services/Purchases/LandedCost/LandedCostTransactions.ts
@@ -9,20 +9,12 @@ import {
  ILandedCostTransactionEntryDOJO,
 } from '@/interfaces';
 import TransactionLandedCost from './TransctionLandedCost';
-import BillsService from '../Bills';
-import HasTenancyService from '@/services/Tenancy/TenancyService';
 import { formatNumber } from 'utils';

@Service()
 export default class LandedCostTranasctions {
  @Inject()
-  transactionLandedCost: TransactionLandedCost;
-
-  @Inject()
-  billsService: BillsService;
-
-  @Inject()
-  tenancy: HasTenancyService;
+  private transactionLandedCost: TransactionLandedCost;

  /**
   * Retrieve the landed costs based on the given query.
--- a/packages/server/src/services/Purchases/LandedCost/TransctionLandedCost.ts
+++ b/packages/server/src/services/Purchases/LandedCost/TransctionLandedCost.ts
@@ -16,13 +16,13 @@ import { ERRORS } from './utils';
@Service()
 export default class TransactionLandedCost {
  @Inject()
-  billLandedCost: BillLandedCost;
+  private billLandedCost: BillLandedCost;

  @Inject()
-  expenseLandedCost: ExpenseLandedCost;
+  private expenseLandedCost: ExpenseLandedCost;

  @Inject()
-  tenancy: HasTenancyService;
+  private tenancy: HasTenancyService;

  /**
   * Retrieve the cost transaction code model.
--- a/packages/server/src/services/Purchases/VendorCredits/ApplyVendorCreditToBills/ApplyVendorCreditToBills.ts
+++ b/packages/server/src/services/Purchases/VendorCredits/ApplyVendorCreditToBills/ApplyVendorCreditToBills.ts
@@ -1,5 +1,5 @@
 import { Service, Inject } from 'typedi';
-import Knex from 'knex';
+import { Knex } from 'knex';
 import { sumBy } from 'lodash';
 import {
  IVendorCredit,
@@ -9,27 +9,27 @@ import {
  IBill,
 } from '@/interfaces';
 import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
-import PaymentReceiveService from '@/services/Sales/PaymentReceives/PaymentsReceives';
 import UnitOfWork from '@/services/UnitOfWork';
 import events from '@/subscribers/events';
 import VendorCredit from '../BaseVendorCredit';
-import BillPaymentsService from '@/services/Purchases/BillPayments/BillPayments';
 import { ServiceError } from '@/exceptions';
+import { BillPaymentValidators } from '../../BillPayments/BillPaymentValidators';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
 import { ERRORS } from '../constants';

@Service()
 export default class ApplyVendorCreditToBills extends VendorCredit {
-  @Inject('PaymentReceives')
-  paymentReceive: PaymentReceiveService;
+  @Inject()
+  private tenancy: HasTenancyService;

  @Inject()
-  uow: UnitOfWork;
+  private uow: UnitOfWork;

  @Inject()
-  eventPublisher: EventPublisher;
+  private eventPublisher: EventPublisher;

  @Inject()
-  billPayment: BillPaymentsService;
+  private billPaymentValidators: BillPaymentValidators;

  /**
   * Apply credit note to the given invoices.
@@ -55,11 +55,12 @@ export default class ApplyVendorCreditToBills extends VendorCredit {
      vendorCredit
    );
    // Validate bills entries existance.
-    const appliedBills = await this.billPayment.validateBillsExistance(
-      tenantId,
-      vendorCreditAppliedModel.entries,
-      vendorCredit.vendorId
-    );
+    const appliedBills =
+      await this.billPaymentValidators.validateBillsExistance(
+        tenantId,
+        vendorCreditAppliedModel.entries,
+        vendorCredit.vendorId
+      );
    // Validate bills has remaining amount to apply.
    this.validateBillsRemainingAmount(
      appliedBills,
--- a/packages/server/src/services/Sales/Estimates/ApproveSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/ApproveSaleEstimate.ts
@@ -0,0 +1,75 @@
+import { Inject, Service } from 'typedi';
+import { ServiceError } from '@/exceptions';
+import {
+  ISaleEstimateApprovedEvent,
+  ISaleEstimateApprovingEvent,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import UnitOfWork from '@/services/UnitOfWork';
+import { ERRORS } from './constants';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import moment from 'moment';
+
+@Service()
+export class ApproveSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  /**
+   * Mark the sale estimate as approved from the customer.
+   * @param {number} tenantId
+   * @param {number} saleEstimateId
+   */
+  public async approveSaleEstimate(
+    tenantId: number,
+    saleEstimateId: number
+  ): Promise<void> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    // Retrieve details of the given sale estimate id.
+    const oldSaleEstimate = await SaleEstimate.query()
+      .findById(saleEstimateId)
+      .throwIfNotFound();
+
+    // Throws error in case the sale estimate still not delivered to customer.
+    if (!oldSaleEstimate.isDelivered) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_NOT_DELIVERED);
+    }
+    // Throws error in case the sale estimate already approved.
+    if (oldSaleEstimate.isApproved) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_ALREADY_APPROVED);
+    }
+    // Triggers `onSaleEstimateApproving` event.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onSaleEstimateApproving` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onApproving, {
+        trx,
+        tenantId,
+        oldSaleEstimate,
+      } as ISaleEstimateApprovingEvent);
+
+      // Update estimate as approved.
+      const saleEstimate = await SaleEstimate.query(trx)
+        .where('id', saleEstimateId)
+        .patch({
+          approvedAt: moment().toMySqlDateTime(),
+          rejectedAt: null,
+        });
+      // Triggers `onSaleEstimateApproved` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onApproved, {
+        trx,
+        tenantId,
+        oldSaleEstimate,
+        saleEstimate,
+      } as ISaleEstimateApprovedEvent);
+    });
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/ConvetSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/ConvetSaleEstimate.ts
@@ -0,0 +1,46 @@
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import events from '@/subscribers/events';
+import { Knex } from 'knex';
+import moment from 'moment';
+import { Inject, Service } from 'typedi';
+
+@Service()
+export class ConvertSaleEstimate {
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Converts estimate to invoice.
+   * @param {number} tenantId -
+   * @param {number} estimateId -
+   * @return {Promise<void>}
+   */
+  public async convertEstimateToInvoice(
+    tenantId: number,
+    estimateId: number,
+    invoiceId: number,
+    trx?: Knex.Transaction
+  ): Promise<void> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    // Retrieve details of the given sale estimate.
+    const saleEstimate = await SaleEstimate.query()
+      .findById(estimateId)
+      .throwIfNotFound();
+
+    // Marks the estimate as converted from the givne invoice.
+    await SaleEstimate.query(trx).where('id', estimateId).patch({
+      convertedToInvoiceId: invoiceId,
+      convertedToInvoiceAt: moment().toMySqlDateTime(),
+    });
+    // Triggers `onSaleEstimateConvertedToInvoice` event.
+    await this.eventPublisher.emitAsync(
+      events.saleEstimate.onConvertedToInvoice,
+      {}
+    );
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/CreateSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/CreateSaleEstimate.ts
@@ -0,0 +1,102 @@
+import { Knex } from 'knex';
+import { Inject, Service } from 'typedi';
+import {
+  ISaleEstimate,
+  ISaleEstimateCreatedPayload,
+  ISaleEstimateCreatingPayload,
+  ISaleEstimateDTO,
+} from '@/interfaces';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { SaleEstimateDTOTransformer } from './SaleEstimateDTOTransformer';
+import events from '@/subscribers/events';
+import { SaleEstimateValidators } from './SaleEstimateValidators';
+
+@Service()
+export class CreateSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private transformerDTO: SaleEstimateDTOTransformer;
+
+  @Inject()
+  private validators: SaleEstimateValidators;
+
+  /**
+   * Creates a new estimate with associated entries.
+   * @async
+   * @param {number} tenantId - The tenant id.
+   * @param {EstimateDTO} estimate
+   * @return {Promise<ISaleEstimate>}
+   */
+  public async createEstimate(
+    tenantId: number,
+    estimateDTO: ISaleEstimateDTO
+  ): Promise<ISaleEstimate> {
+    const { SaleEstimate, Contact } = this.tenancy.models(tenantId);
+
+    // Retrieve the given customer or throw not found service error.
+    const customer = await Contact.query()
+      .modify('customer')
+      .findById(estimateDTO.customerId)
+      .throwIfNotFound();
+
+    // Transform DTO object ot model object.
+    const estimateObj = await this.transformerDTO.transformDTOToModel(
+      tenantId,
+      estimateDTO,
+      customer
+    );
+    // Validate estimate number uniquiness on the storage.
+    await this.validators.validateEstimateNumberExistance(
+      tenantId,
+      estimateObj.estimateNumber
+    );
+    // Validate items IDs existance on the storage.
+    await this.itemsEntriesService.validateItemsIdsExistance(
+      tenantId,
+      estimateDTO.entries
+    );
+    // Validate non-sellable items.
+    await this.itemsEntriesService.validateNonSellableEntriesItems(
+      tenantId,
+      estimateDTO.entries
+    );
+    // Creates a sale estimate transaction with associated transactions as UOW.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onSaleEstimateCreating` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onCreating, {
+        estimateDTO,
+        tenantId,
+        trx,
+      } as ISaleEstimateCreatingPayload);
+
+      // Upsert the sale estimate graph to the storage.
+      const saleEstimate = await SaleEstimate.query(trx).upsertGraphAndFetch({
+        ...estimateObj,
+      });
+      // Triggers `onSaleEstimateCreated` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onCreated, {
+        tenantId,
+        saleEstimate,
+        saleEstimateId: saleEstimate.id,
+        saleEstimateDTO: estimateDTO,
+        trx,
+      } as ISaleEstimateCreatedPayload);
+
+      return saleEstimate;
+    });
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/DeleteSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/DeleteSaleEstimate.ts
@@ -0,0 +1,74 @@
+import { Inject, Service } from 'typedi';
+import { ServiceError } from '@/exceptions';
+import {
+  ISaleEstimateDeletedPayload,
+  ISaleEstimateDeletingPayload,
+} from '@/interfaces';
+import events from '@/subscribers/events';
+import { ERRORS } from './constants';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import UnitOfWork from '@/services/UnitOfWork';
+import { Knex } from 'knex';
+
+@Service()
+export class DeleteSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  /**
+   * Deletes the given estimate id with associated entries.
+   * @async
+   * @param {number} tenantId - The tenant id.
+   * @param {IEstimate} estimateId
+   * @return {void}
+   */
+  public async deleteEstimate(
+    tenantId: number,
+    estimateId: number
+  ): Promise<void> {
+    const { SaleEstimate, ItemEntry } = this.tenancy.models(tenantId);
+
+    // Retrieve sale estimate or throw not found service error.
+    const oldSaleEstimate = await SaleEstimate.query()
+      .findById(estimateId)
+      .throwIfNotFound();
+
+    // Throw error if the sale estimate converted to sale invoice.
+    if (oldSaleEstimate.convertedToInvoiceId) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_CONVERTED_TO_INVOICE);
+    }
+    // Deletes the estimate with associated transactions under UOW enivrement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onSaleEstimatedDeleting` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onDeleting, {
+        trx,
+        tenantId,
+        oldSaleEstimate,
+      } as ISaleEstimateDeletingPayload);
+
+      // Delete sale estimate entries.
+      await ItemEntry.query(trx)
+        .where('reference_id', estimateId)
+        .where('reference_type', 'SaleEstimate')
+        .delete();
+
+      // Delete sale estimate transaction.
+      await SaleEstimate.query(trx).where('id', estimateId).delete();
+
+      // Triggers `onSaleEstimatedDeleted` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onDeleted, {
+        tenantId,
+        saleEstimateId: estimateId,
+        oldSaleEstimate,
+        trx,
+      } as ISaleEstimateDeletedPayload);
+    });
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/DeliverSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/DeliverSaleEstimate.ts
@@ -0,0 +1,71 @@
+import { ServiceError } from '@/exceptions';
+import {
+  ISaleEstimateEventDeliveredPayload,
+  ISaleEstimateEventDeliveringPayload,
+} from '@/interfaces';
+import events from '@/subscribers/events';
+import { Knex } from 'knex';
+import { Inject, Service } from 'typedi';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { ERRORS } from './constants';
+import moment from 'moment';
+
+@Service()
+export class DeliverSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  /**
+   * Mark the sale estimate as delivered.
+   * @param {number} tenantId - Tenant id.
+   * @param {number} saleEstimateId - Sale estimate id.
+   */
+  public async deliverSaleEstimate(
+    tenantId: number,
+    saleEstimateId: number
+  ): Promise<void> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    // Retrieve details of the given sale estimate id.
+    const oldSaleEstimate = await SaleEstimate.query()
+      .findById(saleEstimateId)
+      .throwIfNotFound();
+
+    // Throws error in case the sale estimate already published.
+    if (oldSaleEstimate.isDelivered) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_ALREADY_DELIVERED);
+    }
+    // Updates the sale estimate transaction with assocaited transactions
+    // under UOW envirement.
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Triggers `onSaleEstimateDelivering` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onDelivering, {
+        oldSaleEstimate,
+        trx,
+        tenantId,
+      } as ISaleEstimateEventDeliveringPayload);
+
+      // Record the delivered at on the storage.
+      const saleEstimate = await SaleEstimate.query(trx).patchAndFetchById(
+        saleEstimateId,
+        {
+          deliveredAt: moment().toMySqlDateTime(),
+        }
+      );
+      // Triggers `onSaleEstimateDelivered` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onDelivered, {
+        tenantId,
+        saleEstimate,
+        trx,
+      } as ISaleEstimateEventDeliveredPayload);
+    });
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/EditSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/EditSaleEstimate.ts
@@ -0,0 +1,123 @@
+import { Inject, Service } from 'typedi';
+import {
+  ISaleEstimate,
+  ISaleEstimateDTO,
+  ISaleEstimateEditedPayload,
+  ISaleEstimateEditingPayload,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { SaleEstimateValidators } from './SaleEstimateValidators';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+import { SaleEstimateDTOTransformer } from './SaleEstimateDTOTransformer';
+import ItemsEntriesService from '@/services/Items/ItemsEntriesService';
+import events from '@/subscribers/events';
+
+@Service()
+export class EditSaleEstimate {
+  @Inject()
+  private validators: SaleEstimateValidators;
+
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private itemsEntriesService: ItemsEntriesService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  @Inject()
+  private transformerDTO: SaleEstimateDTOTransformer;
+
+  /**
+   * Edit details of the given estimate with associated entries.
+   * @async
+   * @param {number} tenantId - The tenant id.
+   * @param {Integer} estimateId
+   * @param {EstimateDTO} estimate
+   * @return {Promise<ISaleEstimate>}
+   */
+  public async editEstimate(
+    tenantId: number,
+    estimateId: number,
+    estimateDTO: ISaleEstimateDTO
+  ): Promise<ISaleEstimate> {
+    const { SaleEstimate, Contact } = this.tenancy.models(tenantId);
+
+    // Retrieve details of the given sale estimate id.
+    const oldSaleEstimate = await SaleEstimate.query().findById(estimateId);
+
+    // Validates the given estimate existance.
+    this.validators.validateEstimateExistance(oldSaleEstimate);
+
+    // Retrieve the given customer or throw not found service error.
+    const customer = await Contact.query()
+      .modify('customer')
+      .findById(estimateDTO.customerId)
+      .throwIfNotFound();
+
+    // Transform DTO object ot model object.
+    const estimateObj = await this.transformerDTO.transformDTOToModel(
+      tenantId,
+      estimateDTO,
+      oldSaleEstimate,
+      customer
+    );
+    // Validate estimate number uniquiness on the storage.
+    if (estimateDTO.estimateNumber) {
+      await this.validators.validateEstimateNumberExistance(
+        tenantId,
+        estimateDTO.estimateNumber,
+        estimateId
+      );
+    }
+    // Validate sale estimate entries existance.
+    await this.itemsEntriesService.validateEntriesIdsExistance(
+      tenantId,
+      estimateId,
+      'SaleEstimate',
+      estimateDTO.entries
+    );
+    // Validate items IDs existance on the storage.
+    await this.itemsEntriesService.validateItemsIdsExistance(
+      tenantId,
+      estimateDTO.entries
+    );
+    // Validate non-sellable items.
+    await this.itemsEntriesService.validateNonSellableEntriesItems(
+      tenantId,
+      estimateDTO.entries
+    );
+    // Edits estimate transaction with associated transactions
+    // under unit-of-work envirement.
+    return this.uow.withTransaction(tenantId, async (trx) => {
+      // Trigger `onSaleEstimateEditing` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onEditing, {
+        tenantId,
+        oldSaleEstimate,
+        estimateDTO,
+        trx,
+      } as ISaleEstimateEditingPayload);
+
+      // Upsert the estimate graph to the storage.
+      const saleEstimate = await SaleEstimate.query(trx).upsertGraphAndFetch({
+        id: estimateId,
+        ...estimateObj,
+      });
+      // Trigger `onSaleEstimateEdited` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onEdited, {
+        tenantId,
+        estimateId,
+        saleEstimate,
+        oldSaleEstimate,
+        trx,
+      } as ISaleEstimateEditedPayload);
+
+      return saleEstimate;
+    });
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/GetSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/GetSaleEstimate.ts
@@ -0,0 +1,43 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import { SaleEstimateTransfromer } from './SaleEstimateTransformer';
+import { SaleEstimateValidators } from './SaleEstimateValidators';
+
+@Service()
+export class GetSaleEstimate {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  @Inject()
+  private validators: SaleEstimateValidators;
+
+  /**
+   * Retrieve the estimate details with associated entries.
+   * @async
+   * @param {number} tenantId - The tenant id.
+   * @param {Integer} estimateId
+   */
+  public async getEstimate(tenantId: number, estimateId: number) {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    const estimate = await SaleEstimate.query()
+      .findById(estimateId)
+      .withGraphFetched('entries.item')
+      .withGraphFetched('customer')
+      .withGraphFetched('branch');
+
+    // Validates the estimate existance.
+    this.validators.validateEstimateExistance(estimate);
+
+    // Transformes sale estimate model to POJO.
+    return this.transformer.transform(
+      tenantId,
+      estimate,
+      new SaleEstimateTransfromer()
+    );
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/GetSaleEstimates.ts
+++ b/packages/server/src/services/Sales/Estimates/GetSaleEstimates.ts
@@ -0,0 +1,77 @@
+import * as R from 'ramda';
+import { Inject, Service } from 'typedi';
+import {
+  IFilterMeta,
+  IPaginationMeta,
+  ISaleEstimate,
+  ISalesEstimatesFilter,
+} from '@/interfaces';
+import HasTenancyService from '@/services/Tenancy/TenancyService';
+import DynamicListingService from '@/services/DynamicListing/DynamicListService';
+import { TransformerInjectable } from '@/lib/Transformer/TransformerInjectable';
+import { SaleEstimateDTOTransformer } from './SaleEstimateDTOTransformer';
+import { SaleEstimateTransfromer } from './SaleEstimateTransformer';
+
+@Service()
+export class GetSaleEstimates {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  @Inject()
+  private dynamicListService: DynamicListingService;
+
+  @Inject()
+  private transformer: TransformerInjectable;
+
+  /**
+   * Retrieves estimates filterable and paginated list.
+   * @param {number} tenantId -
+   * @param {IEstimatesFilter} estimatesFilter -
+   */
+  public async getEstimates(
+    tenantId: number,
+    filterDTO: ISalesEstimatesFilter
+  ): Promise<{
+    salesEstimates: ISaleEstimate[];
+    pagination: IPaginationMeta;
+    filterMeta: IFilterMeta;
+  }> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    // Parses filter DTO.
+    const filter = this.parseListFilterDTO(filterDTO);
+
+    // Dynamic list service.
+    const dynamicFilter = await this.dynamicListService.dynamicList(
+      tenantId,
+      SaleEstimate,
+      filter
+    );
+    const { results, pagination } = await SaleEstimate.query()
+      .onBuild((builder) => {
+        builder.withGraphFetched('customer');
+        builder.withGraphFetched('entries');
+        dynamicFilter.buildQuery()(builder);
+      })
+      .pagination(filter.page - 1, filter.pageSize);
+
+    const transformedEstimates = await this.transformer.transform(
+      tenantId,
+      results,
+      new SaleEstimateTransfromer()
+    );
+    return {
+      salesEstimates: transformedEstimates,
+      pagination,
+      filterMeta: dynamicFilter.getResponseMeta(),
+    };
+  }
+
+  /**
+   * Parses the sale receipts list filter DTO.
+   * @param filterDTO
+   */
+  private parseListFilterDTO(filterDTO) {
+    return R.compose(this.dynamicListService.parseStringifiedFilter)(filterDTO);
+  }
+}
--- a/packages/server/src/services/Sales/Estimates/RejectSaleEstimate.ts
+++ b/packages/server/src/services/Sales/Estimates/RejectSaleEstimate.ts
@@ -0,0 +1,57 @@
+import { Service, Inject } from 'typedi';
+import moment from 'moment';
+import { Knex } from 'knex';
+import events from '@/subscribers/events';
+import TenancyService from '@/services/Tenancy/TenancyService';
+import { ServiceError } from '@/exceptions';
+import { ERRORS } from './constants';
+import UnitOfWork from '@/services/UnitOfWork';
+import { EventPublisher } from '@/lib/EventPublisher/EventPublisher';
+
+@Service()
+export class RejectSaleEstimate {
+  @Inject()
+  private tenancy: TenancyService;
+
+  @Inject()
+  private eventPublisher: EventPublisher;
+
+  @Inject()
+  private uow: UnitOfWork;
+
+  /**
+   * Mark the sale estimate as rejected from the customer.
+   * @param {number} tenantId
+   * @param {number} saleEstimateId
+   */
+  public async rejectSaleEstimate(
+    tenantId: number,
+    saleEstimateId: number
+  ): Promise<void> {
+    const { SaleEstimate } = this.tenancy.models(tenantId);
+
+    // Retrieve details of the given sale estimate id.
+    const saleEstimate = await SaleEstimate.query()
+      .findById(saleEstimateId)
+      .throwIfNotFound();
+
+    // Throws error in case the sale estimate still not delivered to customer.
+    if (!saleEstimate.isDelivered) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_NOT_DELIVERED);
+    }
+    // Throws error in case the sale estimate already rejected.
+    if (saleEstimate.isRejected) {
+      throw new ServiceError(ERRORS.SALE_ESTIMATE_ALREADY_REJECTED);
+    }
+    //
+    return this.uow.withTransaction(tenantId, async (trx: Knex.Transaction) => {
+      // Mark the sale estimate as reject on the storage.
+      await SaleEstimate.query(trx).where('id', saleEstimateId).patch({
+        rejectedAt: moment().toMySqlDateTime(),
+        approvedAt: null,
+      });
+      // Triggers `onSaleEstimateRejected` event.
+      await this.eventPublisher.emitAsync(events.saleEstimate.onRejected, {});
+    });
+  }
+}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
allcontributors[bot]	e1a3510f0b	docs: update .all-contributorsrc [skip ci]	2023-08-16 19:36:08 +00:00
allcontributors[bot]	172eea0ad1	docs: update README.md [skip ci]	2023-08-16 19:36:07 +00:00
Ahmed Bouhuolia	01f7effc71	dix(webapp): create quick customer/vendor (#206 )	2023-08-14 18:38:02 +02:00
Ahmed Bouhuolia	26c6ca9e36	refactor: split the services to multiple service classes (#202 )	2023-08-10 20:29:39 +02:00
Ahmed Bouhuolia	ffef627dc3	Merge remote-tracking branch 'refs/remotes/origin/develop' into develop	2023-07-23 22:38:13 +02:00
Ahmed Bouhuolia	f105980f08	chore: update CHANGELOG.md	2023-07-23 22:37:44 +02:00
Ahmed Bouhuolia	efad38fcdc	Merge pull request #195 from bigcapitalhq/api-rate-env-vars fix: expose the rate limit to the env variables	2023-07-23 20:17:51 +02:00
Ahmed Bouhuolia	d84568e43a	Merge pull request #201 from bigcapitalhq/all-contributors/add-suhaibaffan docs: add suhaibaffan as a contributor for code	2023-07-23 20:16:56 +02:00
allcontributors[bot]	ed6517c0e1	docs: update .all-contributorsrc [skip ci]	2023-07-23 18:16:22 +00:00
allcontributors[bot]	0fd256c801	docs: update README.md [skip ci]	2023-07-23 18:16:21 +00:00
Ahmed Bouhuolia	f0285560aa	Merge pull request #198 from suhaibaffan/#149-restart-crashed-docker-containers Added restart policy to docker compose files.	2023-07-23 20:13:48 +02:00
Ahmed Bouhuolia	7a33f79268	chore: update mysql docker container restart policy	2023-07-23 20:05:34 +02:00
Ahmed Bouhuolia	ef5ef647d4	chore: change docker restart policy to unless-stopped	2023-07-23 19:54:55 +02:00
Suhaib Affan	ce62a0524c	Added restart policy to docker compose files.	2023-07-19 20:19:56 -04:00
Ahmed Bouhuolia	278c8a01c5	Merge remote-tracking branch 'refs/remotes/origin/develop' into develop	2023-07-18 20:03:31 +02:00
Ahmed Bouhuolia	f22dc9a18b	fix(webapp): assign currency code of customer/vendor to the transaction form.	2023-07-18 20:02:45 +02:00
Ahmed Bouhuolia	b224a2c313	Merge pull request #196 from bigcapitalhq/fix-loading-status-on-financial-reports fix(webapp): show loading message of cost computing job on financial reports	2023-07-17 01:51:02 +02:00
Ahmed Bouhuolia	d4a933ef18	fix(webapp): show loading message of cost computing job on financial reports	2023-07-17 01:41:13 +02:00
Ahmed Bouhuolia	8b0feb9022	fix(webapp): handle the too many requests error	2023-07-16 21:19:16 +02:00
Ahmed Bouhuolia	92f929152f	feat(server): expose the api rate limit to the env vars	2023-07-16 21:15:13 +02:00
Ahmed Bouhuolia	da514403a1	chore: add recognition to README.md file	2023-07-07 02:34:00 +02:00
Ahmed Bouhuolia	d57f9e5171	chore: update README.md	2023-07-07 02:24:59 +02:00
Ahmed Bouhuolia	0a1299b8a6	Merge pull request #190 from bigcapitalhq/all-contributors/add-scheibling docs: add scheibling as a contributor for bug	2023-07-07 02:21:52 +02:00
allcontributors[bot]	326a2038e7	docs: update .all-contributorsrc [skip ci]	2023-07-07 00:21:40 +00:00
allcontributors[bot]	94bb153120	docs: update README.md [skip ci]	2023-07-07 00:21:39 +00:00
Ahmed Bouhuolia	223756b7ae	Update README.md	2023-07-07 02:20:47 +02:00
Ahmed Bouhuolia	a773ee9966	Merge pull request #189 from bigcapitalhq/all-contributors/add-ameir docs: add ameir as a contributor for bug	2023-07-07 02:20:11 +02:00
Ahmed Bouhuolia	47790fba84	Merge branch 'develop' into all-contributors/add-ameir	2023-07-07 02:20:06 +02:00
Ahmed Bouhuolia	b122fdc43a	Merge pull request #188 from bigcapitalhq/all-contributors/add-elforjani13 docs: add elforjani13 as a contributor for code	2023-07-07 02:18:56 +02:00
allcontributors[bot]	cb93f313ec	docs: update .all-contributorsrc [skip ci]	2023-07-07 00:18:32 +00:00
allcontributors[bot]	74c31c5f20	docs: update README.md [skip ci]	2023-07-07 00:18:31 +00:00
allcontributors[bot]	d411ae3e68	docs: update .all-contributorsrc [skip ci]	2023-07-07 00:16:16 +00:00
allcontributors[bot]	aecef878ba	docs: update README.md [skip ci]	2023-07-07 00:16:15 +00:00
Ahmed Bouhuolia	ec90056f7b	Merge pull request #186 from bigcapitalhq/all-contributors/add-abouolia docs: add abouolia as a contributor for code	2023-07-07 02:14:40 +02:00
Ahmed Bouhuolia	30f2f1fb4c	Update README.md	2023-07-07 02:13:25 +02:00
Ahmed Bouhuolia	c72f5374f3	Update README.md	2023-07-07 02:13:13 +02:00
allcontributors[bot]	66de03b143	docs: create .all-contributorsrc [skip ci]	2023-07-07 00:07:19 +00:00
allcontributors[bot]	2b33583a03	docs: update README.md [skip ci]	2023-07-07 00:07:18 +00:00
Ahmed Bouhuolia	e5611b4446	Merge pull request #176 from bigcapitalhq/e2e-onboarding feat(e2e): E2E onboarding process	2023-07-07 01:32:49 +02:00
Ahmed Bouhuolia	d12157a8d4	Merge branch 'develop' into e2e-onboarding	2023-07-07 01:26:58 +02:00
Ahmed Bouhuolia	b24badfa52	chore: add api rewrite to vercel configure	2023-07-07 01:14:37 +02:00
Ahmed Bouhuolia	c992562760	update CHANGELOG.md	2023-06-28 19:37:33 +02:00
Ahmed Bouhuolia	485138344c	Merge pull request #182 from bigcapitalhq/abouhuolia/big-20-selecting-the-default-branch-for-opening-balance-branch-in fix(webapp): no default branch for customer/vendor opening balance branch	2023-06-28 18:15:19 +02:00
Ahmed Bouhuolia	8d990ae85d	fix(webapp): no default branch for customer/vendor opening balance branch	2023-06-28 18:07:47 +02:00
Ahmed Bouhuolia	7fbe51ddf2	Merge pull request #179 from bigcapitalhq/abouhuolia/big-29-no-currency-in-amount-field-on-money-inout-dialogs fix(webapp): No currency in amount field on money in/out dialogs	2023-06-28 12:27:12 +02:00
Ahmed Bouhuolia	215eb97762	Merge branch 'develop' into abouhuolia/big-29-no-currency-in-amount-field-on-money-inout-dialogs	2023-06-28 12:23:06 +02:00
Ahmed Bouhuolia	3d4fd0b904	fix(webapp): transaction number duplicated variable name	2023-06-28 12:21:22 +02:00
Ahmed Bouhuolia	e552ff6449	Merge pull request #180 from bigcapitalhq/abouhuolia/big-40-storing-cash-flow-transaction-description fix: Storing cash flow transaction description	2023-06-28 11:08:23 +02:00
Ahmed Bouhuolia	268942af42	Merge pull request #181 from bigcapitalhq/abouhuolia/big-39-the-statement-note-does-not-saving-in-payment-receive-and fix: internal note of invoice/bill payment does not saving	2023-06-28 11:07:55 +02:00
Ahmed Bouhuolia	02489a907a	fix(webapp): internal note of invoice/bill payment does not saving	2023-06-28 11:06:33 +02:00
Ahmed Bouhuolia	4e0037d1c0	fix(server): showing transaction statement on cash flow transactions details drawer	2023-06-28 01:00:27 +02:00
Ahmed Bouhuolia	39786e5b1f	fix(server): storing cash flow transaction statement to GL entry note	2023-06-28 00:58:47 +02:00
Ahmed Bouhuolia	6373862044	fix(webapp): No currency in amount field on money in/out dialogs	2023-06-27 21:32:08 +02:00
Ahmed Bouhuolia	b46154ba59	feat(e2e): add default extra header to new e2e browser pages	2023-06-27 00:25:44 +02:00
Ahmed Bouhuolia	59e3a4016b	Merge pull request #177 from bigcapitalhq/abouhuolia/big-38-payment-made-form-does-not-handle-not-unique-number-an-error fix(webapp): payment made form does not handle not unique number an e…	2023-06-26 23:08:57 +02:00
Ahmed Bouhuolia	b6a1c9ab4b	fix(webapp): payment made form does not handle not unique number an error message	2023-06-26 20:57:52 +02:00
Ahmed Bouhuolia	7171fb2a69	Merge branch 'develop' into e2e-onboarding	2023-06-23 16:12:03 +02:00
Ahmed Bouhuolia	c64a14aef3	Merge branch 'develop' into e2e-onboarding	2023-06-23 16:10:47 +02:00
Ahmed Bouhuolia	ac539aed34	chore: remove debug from playwright script	2023-06-23 16:10:29 +02:00
Ahmed Bouhuolia	c7b4846cb0	Merge pull request #171 from bigcapitalhq/abouhuolia/big-21-close-select-icon-clashes-with-caret-icon feat(webapp): refactor customer and vendor select component	2023-06-23 16:06:55 +02:00
Ahmed Bouhuolia	d54aac9b32	Merge branch 'develop' into abouhuolia/big-21-close-select-icon-clashes-with-caret-icon	2023-06-23 16:05:21 +02:00
Ahmed Bouhuolia	fe87713df0	Merge pull request #172 from bigcapitalhq/abouhuolia/big-29-no-currency-in-amount-field-on-money-inout-dialogs fix(webapp): should not show the form before loading account	2023-06-23 15:57:06 +02:00
Ahmed Bouhuolia	4770fdf709	Merge pull request #173 from bigcapitalhq/abouhuolia/big-37-item-drawer-floating fix(webapp): style of quick item drawer	2023-06-23 15:55:58 +02:00
Ahmed Bouhuolia	1b3c525ba5	Merge pull request #170 from bigcapitalhq/split-components-in-seprate-files chore(webapp): move auto-increment components in separate files	2023-06-23 15:55:22 +02:00
Ahmed Bouhuolia	b35d22d3b3	feat(e2e): onboarding process	2023-06-23 14:32:36 +02:00
Ahmed Bouhuolia	44fce6f33e	feat(e2e): WIP e2e onboarding process	2023-06-23 02:45:30 +02:00
Ahmed Bouhuolia	e58a1d6ad1	chore(webapp): localization tweaks	2023-06-22 22:12:23 +02:00
Ahmed Bouhuolia	5f191cf335	fix(webapp): customer/vendor select should update deps	2023-06-22 22:07:39 +02:00
Ahmed Bouhuolia	46bf1cc39a	fix(webapp): style of quick item drawer	2023-06-22 20:48:27 +02:00
Ahmed Bouhuolia	c98fe00f88	fix(webapp): should not show the form before loading account	2023-06-22 20:13:29 +02:00
Ahmed Bouhuolia	4b95c19d3e	chore: update @blueprintjs-formik/select to the latest version	2023-06-22 19:54:54 +02:00
Ahmed Bouhuolia	eadaac30d6	feat(webapp): refactor customer and vendor select component	2023-06-22 17:26:33 +02:00
Ahmed Bouhuolia	ca4d543482	fix(webapp): quick create item drawer	2023-06-22 01:51:42 +02:00
Ahmed Bouhuolia	1f3adf4879	chore(webapp): move components in separate files	2023-06-22 01:30:05 +02:00
Ahmed Bouhuolia	532ad61500	Merge pull request #169 from bigcapitalhq/abouolia-patch-1 Rename writeInvoicesJEntries.ts to WriteInvoicesJEntries.ts	2023-06-19 23:03:25 +02:00
Ahmed Bouhuolia	a44d779670	Rename writeInvoicesJEntries.ts to WriteInvoicesJEntries.ts	2023-06-19 23:00:22 +02:00
Ahmed Bouhuolia	ab5f9f50d0	chore: update CHANGELOG file	2023-06-19 22:58:33 +02:00
Ahmed Bouhuolia	f3f10db6db	chore: change the default BASE_URL env var value	2023-06-19 22:56:58 +02:00
Ahmed Bouhuolia	de5694681b	Merge pull request #168 from bigcapitalhq/abouhuolia/big-30-create-a-new-warehouse-transfer-broken fix(webapp): warehouses select component	2023-06-19 22:44:56 +02:00
Ahmed Bouhuolia	b1a997c287	fix(webapp): warehouses select component	2023-06-19 22:43:19 +02:00
Ahmed Bouhuolia	3e36146bce	Merge pull request #167 from bigcapitalhq/abouhuolia/big-33-sending-emails-on-reset-password-and-registration fix(server): sending emails on reset password and registration	2023-06-19 16:04:25 +02:00
Ahmed Bouhuolia	db833888c8	Merge pull request #160 from bigcapitalhq/abouhuolia/big-17-issue-in-manual-journal-placeholder-text fix(webapp): manual journal placeholder text	2023-06-19 16:02:12 +02:00
Ahmed Bouhuolia	c415e3d693	Merge pull request #161 from bigcapitalhq/abouhuolia/big-32-sidebar fix(webapp): rename sidebar localization keys names to be keyword path	2023-06-19 16:01:43 +02:00
Ahmed Bouhuolia	e145eabf02	Merge pull request #162 from bigcapitalhq/abouhuolia/big-22-make-the-remove-line-text-to-be-in-red fix(webapp): change the remove line option text to be red to intent as danger action	2023-06-19 16:00:54 +02:00
Ahmed Bouhuolia	caab21647d	Merge pull request #159 from bigcapitalhq/abouhuolia/big-24-adjustment-type-options-do-not-show-up-2 fix(webapp): adjustment type options do not show up	2023-06-19 16:00:20 +02:00
Ahmed Bouhuolia	98528e9e5b	Merge pull request #158 from bigcapitalhq/abouhuolia/big-26-add-inventory-adjustment-option-to-the-item-drawer feat(webapp): add Inventory Adjustment option to the item drawer	2023-06-19 15:59:11 +02:00
Ahmed Bouhuolia	b993fad37f	fix(webapp): change the min password length of reset password	2023-06-19 15:55:20 +02:00
Ahmed Bouhuolia	94ea44b58e	fix(server): change the reigster min password length	2023-06-19 15:55:06 +02:00
Ahmed Bouhuolia	877a57043a	fix(server): sending emails on reset password and registration	2023-06-19 15:36:18 +02:00
Ahmed Bouhuolia	70415d1d63	fix(webapp): change the remove line option text to be red to intent as danger action	2023-06-15 20:49:23 +02:00
Ahmed Bouhuolia	ef2d1977d6	fix(webapp): rename sidebar localization keys names to be keyword path	2023-06-15 20:12:31 +02:00
Ahmed Bouhuolia	46ea26891d	fix(webapp): manual journal placeholder text	2023-06-15 20:08:39 +02:00
Ahmed Bouhuolia	f750cede89	fix(webapp): adjustment type options do not show up	2023-06-15 20:00:34 +02:00
Ahmed Bouhuolia	e5d0f16096	feat(webapp): add Inventory Adjustment option to the item drawer	2023-06-15 19:49:23 +02:00
Ahmed Bouhuolia	706694c768	Merge pull request #157 from bigcapitalhq/abouhuolia/big-23-payment-made-details-drawer-does-not-show-up-3 fix(webapp): use all drawers names from common enum object	2023-06-14 21:53:55 +02:00
Ahmed Bouhuolia	d1a09e3b15	fix(webapp): use all drawers name from common enum object	2023-06-14 19:51:14 +02:00
Ahmed Bouhuolia	01c27b56ef	Merge pull request #155 from bigcapitalhq/abouhuolia/big-19-delete-expense-transaction-does-not-work fix(server): the expense transaction journal entries	2023-06-14 13:05:34 +02:00
Ahmed Bouhuolia	0d8fb8cf25	fix(server): the expense transaction journal entries	2023-06-14 13:00:26 +02:00
Ahmed Bouhuolia	6562e3ab8c	chore: update CHANGELOG.md	2023-06-14 12:10:35 +02:00
Ahmed Bouhuolia	c93650ffd3	Merge pull request #139 from bigcapitalhq/change-onboarding-footer-links chore(webapp): change the footer links of onboarding pages	2023-06-13 23:45:16 +02:00
Ahmed Bouhuolia	e6a2825065	chore(webapp): change the footer links of onboarding pages	2023-06-13 20:30:29 +02:00
Ahmed Bouhuolia	0c2a0b0010	Update README.md	2023-06-12 22:55:57 +02:00
Ahmed Bouhuolia	a332c51249	chore: change the default SIGNUP_DISABLED env variable	2023-06-12 21:15:27 +02:00
Ahmed Bouhuolia	0b6d0bc016	dump version 0.9.6	2023-06-12 19:43:36 +02:00
Ahmed Bouhuolia	e6336b1451	Merge pull request #136 from bigcapitalhq/add-monorepo-version-on-sidebar feat(webapp): add monorepo version on the sidebar	2023-06-12 19:42:37 +02:00
Ahmed Bouhuolia	46290c4d37	Merge pull request #138 from bigcapitalhq/remove-duplicated-form-submitting fix(webapp): remove duplicated form submitting	2023-06-12 18:55:18 +02:00
Ahmed Bouhuolia	ff2b7563c8	fix(webapp): remove duplicated form submitting	2023-06-12 18:47:28 +02:00
Ahmed Bouhuolia	b9572420ed	feat(webapp): add monorepo version on the sidebar	2023-06-12 02:44:12 +02:00
Ahmed Bouhuolia	35ebb9c2aa	Merge pull request #134 from bigcapitalhq/contacts-opening-balance-exchange-rate fix(webapp): customer/vendor opening balance with exchange rate	2023-06-11 20:12:44 +02:00
Ahmed Bouhuolia	3ebeb29dc0	chore(webapp): vendor tabs	2023-06-11 20:12:26 +02:00
Ahmed Bouhuolia	8e98068538	fix(webapp): vendor form fastField of opening balance field	2023-06-11 20:11:30 +02:00
Ahmed Bouhuolia	6a72594faf	fix(webapp): update condition of customer opening balance	2023-06-11 20:09:51 +02:00
Ahmed Bouhuolia	728729094a	Merge branch 'develop' into contacts-opening-balance-exchange-rate	2023-06-11 19:56:54 +02:00
Ahmed Bouhuolia	93d540fbd2	fix(webapp): style tweaks on customer/vendor tabs	2023-06-11 19:53:15 +02:00
Ahmed Bouhuolia	eb9b6ce717	Merge pull request #133 from bigcapitalhq/add-duplicate-icon-to-list fix(webapp): add duplicate icon to customers and vendors table	2023-06-11 19:36:52 +02:00
Ahmed Bouhuolia	f716d42d26	Merge pull request #135 from bigcapitalhq/fix-make-journal-with-different-accounts fix(webapp): make journal error when create journal with accounts have different currency	2023-06-11 19:36:37 +02:00
Ahmed Bouhuolia	1c4c364f06	Merge pull request #132 from bigcapitalhq/filter-ledger-entries-ar-ap fix(server): filter ledger entries that effect contact balance to AR/AP accounts only	2023-06-11 19:35:53 +02:00
Ahmed Bouhuolia	162ad91547	fix(webapp): handle make journal error when create journal with accounts have different currency	2023-06-11 19:34:24 +02:00
Ahmed Bouhuolia	2950e5ede4	fix(webapp): customer/vendor opening balnace with exchange rate	2023-06-11 19:29:26 +02:00
Ahmed Bouhuolia	73b041d8d2	fix(webapp): add deuplicate icon to customers and vendors table	2023-06-11 19:25:39 +02:00
Ahmed Bouhuolia	7bf008a9cb	fix(server): filter ledger entries that effect contact balance to AR/AP accounts only	2023-06-11 19:23:31 +02:00
Ahmed Bouhuolia	4d9e3ccfb4	fix(server): disable webpack minification for class name reading	2023-06-08 22:38:43 +02:00
Ahmed Bouhuolia	1bfe19f26c	fix: change the default charset value	2023-06-08 13:19:58 +02:00
Ahmed Bouhuolia	a371cedb67	Merge pull request #130 from bigcapitalhq/normalized fix docker-compose line-ending issue on Windows	2023-06-06 20:40:42 +02:00
Ahmed Bouhuolia	4ed9c36ebd	feat: set default value to env vars	2023-06-06 20:37:42 +02:00
ElforJani13	e24b23ce7e	🐛 FIX:	2023-06-06 19:49:25 +02:00
Ahmed Bouhuolia	19fe6e2423	fix: normalize nginx bash the line endings	2023-06-06 18:37:21 +02:00
Ahmed Bouhuolia	aec09f178b	Merge pull request #128 from bigcapitalhq/BIG-435-migrate-to-maria-db-v-11 feat: migrate the server to MariaDB	2023-06-04 14:45:47 +02:00
Ahmed Bouhuolia	ffe51bae07	feat: migrate the server to MariaDB	2023-06-04 14:38:53 +02:00
Ahmed Bouhuolia	68231d5edb	Merge pull request #125 from bigcapitalhq/docker-compose-env-variables feat: add env variable to customize the proxy public ports	2023-05-31 20:30:44 +02:00