How To Fix /PLMI/MBOM_MAP_BOM255 - BOM is not locked

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/MBOM_MAP_BOM -

• Message number: 255

• Message text: BOM is not locked

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/MBOM_MAP_BOM255 - BOM is not locked ?

  The SAP error message /PLMI/MBOM_MAP_BOM255 BOM is not locked typically occurs when there is an attempt to modify or access a Bill of Materials (BOM) that is not currently locked for editing. This can happen in various scenarios, such as when multiple users are trying to access the same BOM simultaneously, or if the BOM was not properly locked during a previous operation.
  Causes:
  
  Concurrent Access: Another user or process is currently editing the BOM, preventing your session from locking it.
  Session Timeout: The session that was supposed to lock the BOM may have timed out or been terminated unexpectedly.
  System Configuration: There may be issues with the configuration of the BOM locking mechanism in the SAP system.
  Database Issues: There could be underlying database issues that are preventing the locking mechanism from functioning correctly.
  
  Solutions:
  
  Check for Concurrent Users: Verify if another user is currently editing the BOM. You can do this by checking the user sessions in the SAP system.
  Retry the Operation: Sometimes, simply waiting a moment and retrying the operation can resolve the issue if it was caused by a temporary lock.
  Lock the BOM Manually: If you have the necessary permissions, you can try to manually lock the BOM using transaction codes like CS01 (Create BOM) or CS02 (Change BOM) to see if it allows you to proceed.
  Clear Sessions: If you suspect that a session is stuck, you can use transaction SM04 to view and manage user sessions. You may need to log off or terminate any sessions that are holding locks on the BOM.
  Check System Logs: Review the system logs for any errors or warnings that might provide more context about the locking issue.
  Contact SAP Support: If the issue persists, it may be necessary to contact SAP support for further assistance, especially if it appears to be a system-wide issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01, CS02, CS03 (Display BOM), and CS12 (BOM Comparison).
  User Authorizations: Ensure that you have the necessary authorizations to lock and edit BOMs in the system.
  SAP Notes: Check for any relevant SAP Notes that might address known issues with BOM locking in your version of SAP.
  Documentation: Review SAP documentation related to BOM management and locking mechanisms for best practices and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the /PLMI/MBOM_MAP_BOM255 BOM is not locked error in SAP.