Reversal of accounting document not possible

What causes this issue?

The object reference for determining the FI document is not complete.

System Response

Reversal is not possible.

How to fix this error?

Check object refernece &V1& &V2& &V3& &V4& for completeness.

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.