SAP Message 29228 - You are not authorized to create variants in plant &

Diagnosis
You want to create a new variant of the BOM in plant &V1&. Before youcan create a variant in plant &V1&, the system checks the authorizationobject "BOM plant (plant allocations)".
Yur user master record does not contain the values required for thisauthorization profile.

Procedure
If you have to create the variant in plant &V1&n, your user masterrecord needs to be changed.
Please consult your system manager.