Auto Invoicing is a process of creating an invoice automatically in AR when a sales order has been shipped and closed. This process is triggered by a concurrent request 'AUTO INVOICE MASTER PROGRAM'.
Auto Invoicing is a process of Importing Invoice related information from External / Internal Sources.External will be your business Legacy Systems like Main Frame / AS400 or Non Oracle ERP systems like SAP / JDE or From Custom Oracle Applications. The data is placed into Interface tables and from there either from Application or from PL/SQL you can call Auto Invoice Concurrent request to validate and transfer data into AR Transaction tables. The data from these tables can be seen when queries from Transaction Screens.