ERPNext is an open source ERP written on Python and has MySQL at the back-end and includes Financial Accounting, Inventory Management, CRM, Project Management, Human Resource MS. It is designed to be easy to use and ideal for small businesses.

See Wiki Pages

To Install ERPNext, use Frappe Bench

• Contribution Guidelines
• Issue Guidelines
• How to test a Pull Request
• ERPNext Performance Tuning
• Guide to splitting modules from ERPNext
• Migration Guide to ERPNext version 14
• Migration Guide to ERPNext version 15
• Migration Guide to ERPNext version 16

• Page format for docs
• Documentation To Do

• V13 Release Notes
• V14 Release Notes