When you are in the App Manage Supplier Line Item, and try to edit Invoice Reference field (BSEG-REBZG), you get the error message:
Document or line item does not exist for invoice reference
SAP S/4Hana Cloud
Reproducing the Issue
- Go to App Manage Supplier Line Item
- Edit the Invoice Reference field
For line items which are related to another line item , this field contains the number of the partner document.
In the standard system the field is used for the following:
• Credit memos that refer to a particular invoice item
• Subsequent invoices for an invoice item
• Partial payments for an invoice item
• Partial clearings of down payments
In the first two cases mentioned, the terms of payment terms of payment are copied from the cross-referenced invoice item into the item currently being processed. This ensures that items due on the same date are paid together by automatic payment.
A special rule applies to credit memos that contain a "V" in this field. The due date is determined in the same way as for an invoice. If the field is empty (containing neither a document number nor a "V") the due date is the baseline date for payment.
It's correct error message due to System Design.
Manage Supplier Line Item, Invoice Reference, BSEG-REBZG, , KBA , FI-FIO-AP , Fiori UI for Accounts Payable , Problem