SAP Message AO339 - Error: Approp. request &1 is not marked for deletion - please check

Diagnosis
You want to set the deletion flag for measure &V2& &V3&.
However, measure &V2& &V3& is assigned to appropriation request &V1&.The appropriation request, however, is not marked for deletion.
Therefore, you cannot delete measure &V2& &V3&.

System Response
The deletion flag is not set for measure &V2& &V3&.

Procedure
Check the assignment of measure &V2& &V3& and appropriation requestV1.
Deletion is possible only if you mark appropriation request &V1& fordeletion.