Prepare detailed documentation for Construction ERP project

I need a detailed documentation for a ERP Construction Management System.

Technologies to be used.
Java
Springboot
Angular JS
MySQL

Those with good knowledge about this are preferred.
We would be developing the product in agile methodology.

Wireframes:
Mockups:
Drawings:
UI Design Files: Not mandatory

Modules:
CRM (Customer
Relationship Management)
Equipment Tracking
Project Management
Purchase Order Management
Quotation Management
Supplier/Supplier
Management
Task Management
Timesheet Management
Task Scheduling
Task Progress Tracking
Inventory Management
Invoice Management
Job Costing
Activity Tracking
Change Order Manager
Document Management
Reporting & Statistics