Billing Book is a PHP/jQuery-based web-based application that allows you to manage your invoices, customers, suppliers, and stock. The application has an Easy POS system for a faster billing system. A very responsive web template has been used, the application contains complete source code and is easy to modify it as per your needs. The application can be ready to install on the local computer or on an online server with an easy installation process.
Demo Link:

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Features:
Multi Distribution centers
Multi Clients
Bookkeeping
Citation
Client Settlements ahead of time The executives
Deals and Buy Receipt and Installments The board
Deals and Buy Return Receipt and Installments The executives
Clients and Providers The board and Import [CSV] highlight
Clients and Providers Installments (Mass Compensation/Get) The board
Things and Administration The board and Import [CSV] highlight
Things Brand and Classification Expert
Print Scanner tag/Names
Stock Change/Section
Stock Exchange between distribution center (in same Store)
Cost Administration
Convert Citation to Receipt
Clients and Clients Job The executives and ready to appoint stockroom to client
Charge and Duty gathering
Units The board
Thing Variation The board
Installment Types Expert
Places The executives [Country and State]
SMS Programming interface : Twilio Programming interface, URL/HTTP based SMS Programming interface, SMS Layouts
Money Expert
Data set Reinforcement office [Admin]
Reports:
Deals Assessment Report
Buy Expense Report
Provider Things Report
Deals Report
Deals Bring Report back
Vender Focuses Report
Buy Report
Buy Bring Report back
Cost Report
Benefit and Misfortune Report, Thing wise and receipt wise benefit Report
Stock Report
Thing Business chart
Buy Installments Report
Deals Installments Report
Itemized Documentation