SAP Message AO188 - Variant &1 cannot be deleted, since it is assigned to version &2 &3

Diagnosis
You want to delete variant &V1&. Variant &V1&, however, is assigned toversion &V2& in approval year &V3&. Variants that are assigned cannotbe deleted.

System Response

Procedure
You can delete the variant only if you are authorized to remove allassignments of this variant to plan versions. To do so, remove allentries for variant &V1& on the 'plan versions' tab page.