SAP Message 29046 - Object management record cannot be generated

Diagnosis
You want to change the BOM with the entered change number.
One of the following situations triggered this error message:
The indicator that allows automatic generation is not set for objecttype BOM in the change master.
The indicator generation only on initial creation is set forobject type BOM
You are processing a change request.

System Response
The system checks whether the indicator object management recordwill be generated is set in the change master.
If the indicator generation only on initial creation is set, thesystem checks whether the BOM exists in the system.

Procedure
If you are authorized to change the change master, execute thefollowing steps:
For 1.)
Set this indicator for object type BOM or create the controlrecord in the change master.
For 2.)
If the BOM already exists in the system and the generation only oninitial creation indicator is set, the system can no longer generatethe control record automatically.
In this case you have to add the object control record to the changemaster first, then you can change the BOM in relation to the changenumber.
For 3.)
You cannot generate any object control records for a change request.