How To Fix WS635 - External reference number &1 was exchanged for document &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 635

• Message text: External reference number &1 was exchanged for document &2

What causes this issue?

The number of read accesses in the program is restricted to &V1&.

System Response

The system outputs the hits in a sorted sequence, however since the
maximum number of hits has been restricted the list might not match the
database in the sorted area.

How to fix this error?

You can set a temporary restriction either by using a report variant or
on the selection screens themselves.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.