In the case of a credit memo procedure (self-billing in SD), the customers write their own invoices. The invoice charge can therefore no longer be applied. The procedure takes place electronically via EDI. In the scenario, the credit memo procedure (self-billing in SD) runs within a scheduling agreement. There is also a credit memo procedure (self-billing in SD) for individual purchase orders.

On the MM side, a goods receipt is posted and subsequently settled. The ERS document is generated and sent via EDI when the offsetting document is posted.

On the SD side, the ERS document is received via EDI as an external invoice and compared with the internal billing document. If the values correspond, the internal billing document is modified accordingly. If differences occur, the modifications must be made manually.