Diagnosis
You want to allocate material &V1& to one or more BOMs for aconfigurable material.
This is not possible, because material &V1& has not been configured inplant &V2&.

Procedure
Please check your entry for the material.
If you want to allocate this material, configure material &V1& first.
To do this, assign characteristic values to the material in thematerial master,with reference to a configurable material (select viewMRP 2).