INVOLVE is a web based Internet application that allows the suppliers of a large company to submit large number of invoices online. The application processes the invoices and communicates the status of each invoice to the vendor. The application directly interacts and writes the submitted invoices to SAP/R3 accounting system.

The application deals with all the complexities involved in batch processing of invoices including the business logic and reporting the status of individual invoices.

The application runs under SSL for added security. Additional security is provided at the operating system level. The OS authentication is implemented as a COM object developed in Visual C++ that calls LAN MANAGER API to manipulate the user accounts.