SAP Message WMCV004 - Vendor charact. value &1 cannot be used for value &3 (used for value &2)

Diagnosis A maintenance request to assign vendor characteristic value &V1& tovalue &V3& of characteristic &V4& has been issued. But this vendorcharacteristic value is already associated to value &V2&. System Response The vendor characteristic value &V1& cannot be associated to more thanone internal value of the characteristic &V4&. Procedure Assign another vendor characteristic value to either value &V2& or &V3& .