How To Fix CMT006 - BOM for material &1 plant &2 usage &3 is locked by user &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CMT - CM: Message Class in CM Environment

• Message number: 006

• Message text: BOM for material &1 plant &2 usage &3 is locked by user &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMT006 - BOM for material &1 plant &2 usage &3 is locked by user &4 ?

  The SAP error message CMT006 indicates that a Bill of Materials (BOM) for a specific material, plant, and usage is currently locked by another user. This typically occurs when one user is editing or viewing the BOM, preventing other users from making changes until the lock is released.
  Cause:
  
  User Lock: Another user is currently editing the BOM, which creates a lock on that BOM for the duration of their session.
  Session Timeout: Sometimes, if a user does not properly log out or if their session times out, the lock may not be released immediately.
  Background Jobs: A background job might be running that is accessing the BOM, causing it to be locked.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user to finish their work and release the lock. You can retry accessing the BOM after some time.
  Identify the Locking User: If you need immediate access, you can identify the user who has locked the BOM. You can do this by using transaction code SM12 (Display and Delete Locks). Here, you can see the list of locks and the user who has locked the BOM.
  Contact the Locking User: If possible, contact the user who has the lock and ask them to release it if they are done with their changes.
  Delete the Lock: If the locking user is unavailable and you have the necessary authorizations, you can delete the lock from transaction SM12. However, this should be done with caution, as it may lead to data inconsistencies if the other user is still working on the BOM.
  Check for Background Jobs: If a background job is causing the lock, you may need to wait for it to complete or check with your system administrator.
  
  Related Information:
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  SM12: Display and Delete Locks
  
  
  User Roles and Authorizations: Ensure that you have the necessary permissions to view or delete locks if needed.
  System Performance: If locks are a frequent issue, it may be worth investigating system performance or user training to minimize concurrent access to the same BOM.
  
  By following these steps, you should be able to resolve the CMT006 error and gain access to the BOM you need.