This purchase order app is a tool I wrote for the company I worked for several years ago.
The company sold packages through telephone and wrote the orders up manually.
This tool automates manual writing for the sold orders.
You can load clients in the form through the client database.
It also keeps track of the stock of available products, and shows a summary and statistics for sold orders per user.
The app is based on the 3-tier architecture and uses a membership system.