Diagnosis
Your user profile contains details of all BOM transactions you areallowed to carry out according to BOM category. This authorization isdefined further in your user profile via combinations of field valuesfor BOM usage and authorization group.
Your current profile does not authorize you to maintain BOMs with thisactivity category in this value combination for BOM usage andauthorization group.

Procedure
Consult your system manager responsible for authorizations. The valuerange in your user profile may need to be changed.
If no change is planned, inform your system manager responsible for BOMmaintenance.