SAP ABAP EDI Online / In-Class Training SAP ABAP Electronic Data Interchange (EDI) is the concept of businesses communicating electronically certain information that was traditionally communicated on paper. The two classic examples of such information are purchase orders and invoices. Standards for EDI exist to facilitate parties transacting such instruments without having to make special arrangements, EDI is the electronic exchange of business documents between the computer systems of business partners, using a standard format over a communication network.