Diagnosis
You want to process bill of material &V1& &V2& with the selected changenumber. However, one of the following situations triggered this errormessage:
You are processing the BOM in another session.
The change master record is currently being processed by user &V3&.
The BOM is has just been processed by user &V3&. However, the systemhas not yet updated the BOM.

Procedure
Try again later.
If the BOM is locked over a long period of time, ask the user concernedwhat is happening.