Posting key & does not exist

What causes this issue?

Posting key &V1& does not exist.

System Response

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

How to fix this error?

Please create <DS:TRANS.OB41>posting key</> &V1&. Alternatively, assign
the relevant transaction to another existing posting key
(<DS:TRANS.OBYC>automatic postings, transactions</>).

Error message extract from SAP system. Copyright SAP SE.