SAP Message 29887 - Plant & not defined (please check your entry)

Diagnosis
You want to create a BOM for plant &V1&.
However, as BOM maintenance is not supported in this plane, you cannotcreate the BOM for this plant.

System Response
The system checks the settings specific to your company for theorganisational structures (Setup -> Logistics -> General -> Plants).
No plants beginning with the special character "*" are set up forbills of material. This special character has a specific meaningin BOM display and BOM reporting functions.

Procedure
Please check your entry in the Plant field.