Installment and Sales Tracking Desktop Application (C# & Microsoft Access)

One of the projects I did during my school years was an installment program. Some people aren't very keen on bank installments. The same applies to sellers. They pay their purchases in installments using their own methods. I developed a desktop application to track this. The application is designed with a very simple structure. Initially, it needs to be installed in exe format at the relevant sales location. Since the data isn't stored web-based or in the cloud, it's run locally. Microsoft Access is used as the database. Customers first enter the products they'll be selling through the application. This allows them to categorize products and track product inventory. The buyer is then registered in the application system, and the number of installments, the due dates, and the payment intervals are recorded.

The application essentially operates as described above. The product seller can track inventory through the application and more easily track their receivables and accounts receivable. An additional benefit for the seller is that if they're employed on a bonus basis, they can track the sales volume of each employee. Customers can receive notifications about installment payments via text or SMS three days before their due dates. The application is useful for both the seller and the customer. Users automatically create a file to track payments after the sale. This way, they can track their payments on paper, similar to an e-invoice.

When I developed the desktop application, I wasn't aware of Git versions at the time. I kept the code locally, but it was deleted after I formatted my computer. Therefore, I can't share the code :(. The application uses C#, and the database uses Microsoft Access.