Diagnosis
You want to enter class &V1& &V2& as a class item on &V3&. In the basisdata for a class, the validity period of the class is defined.
The selected class is not valid on the valid-from date of theBOM.

Procedure
You can only enter class &V1& &V2& as a class item if you change thevalid-from date of the class. Consult the person responsible forclass maintenance.