If you encounter this error when trying to access a BOM in BOM Entry, here's how to spot the offending BOM.
Transactions>Manufacturing>Bill of Material>Security
* click image to enlarge
All activity on any BOM will appear in this window. If a BOM record is locked and no one is in a BOM transaction window, you can delete the lock by clicking on the 'Delete' button. This frees up the BOM for editing in the BOM Entry window.
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