The reversal document differs from original doc.& (field &, new &, old &)

What causes this issue?

The system found differences between the reversal document and the
original settlement document &V1& at header level of the settlement
document. Further processing of the documents is not possible.
The difference occurs in field &V2&. The original value is &V3&, and the
new value is &V4&.

System Response

Reversal of the document is not possible.

How to fix this error?

Analyze the cause of the differences.

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.