SAP Message AO239 - Deletion not possible, since variant &1 has a blocked version assignment

Diagnosis
You want to delete appropriation request &V4&.
However, variant &V1& is assigned to version &V3& in approval yearV2. however, version v3 is blocked by the approval level.

System Response
Deleting the appropriation request is not possible.

Procedure
Check if you can remove the block of the approval level. Deleting theappropriation request is allowed if the block is removed.