The CRM

A program for order management is developed.The program has a database (customers, goods, orders, source and cost materials).The software is designed to produce printed plates and has a wider functionality than described below, but this functionality is specifically fixed under such production.At request, I can answer any question.The following functions were implemented in the program:
1) Customer (add, change, delete, view, filter, search, switch to the order of this customer and to the goods of this customer)
2) Goods (add, change, remove, view, filter, search, transfer to orders with this goods, to customers who ordered this goods)
3) Orders (add, change, delete, view, filter, search, switch to the customer page and to the product)
4) the stages.There are stages of production of goods in the program.Any goods must be moved in stages to track their readiness in real time.5) Calculator of order

The following technologies have been used in the program:
Windows Forms
by MSSQL
Entity Framework (code first)
by JSON, XML
G-code
API (new mail, private bank)
The Telegram BOT
Connected e-mail service