SAP Note 12934 - Two billing documents exist for one delivery note

Symptom:

Two (or more) identical billing documents exist for one delivery or order item.

Other terms

Several identical billing documents, update termination, postprocessing,
VF04, VF06, analysis program, analysis report

Reason and Prerequisites

When you create the billing document, the document to be billed (the sales document or delivery) is locked. This document lock prevents the system from billing the document to be billed at the same time and therefore prevents it from being duplicated. If the document is updated correctly, the document status check prevents further billing.
If an update termination occurs, the document lock is canceled, the status is reset and the billing index does not change.
As a result, the document can be billed again (this usually occurs in the background or when you process the billing due list).
However, if the terminated update records are postprocessed, a second identical billing document is created.

Solution
Cancel one of these two billing documents.

The following applies:
You CANNOT postprocess a billing process that terminated.
The orders/deliveries in questions are billed during the next billing run.

How to determine duplicate billing documents:
You can use the ZVINVOIC report (attached) to list the orders and deliveries in question.

For performance reasons, we advise you to use the selection options
- S_VBELV (document number of the preceding documents) and
- S_ERDAT (creation date)
to restrict the scope of the document.
You can use the following parameters:
- P_ORDER
- P_DELIV
to determine whether the system should only take account of orders and/or deliveries.