Document &1 cannot be reversed

What causes this issue?

The original document contains items subject to differential invoicing
and was entered as either a provisional invoice, differential invoice,
or final invoice. One or more follow-on documents were entered for this
original document. It is not possible to reverse the original document
if follow-on documents exist.

System Response

You cannot reverse the document.

How to fix this error?

First reverse the follow-on documents.

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.