How To Fix /NFM/CO002 - Material & is locked by user &, not possible to change

SAP Error Message - Details

• Message type: E = Error

• Message class: /NFM/CO -

• Message number: 002

• Message text: Material & is locked by user &, not possible to change

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /NFM/CO002 - Material & is locked by user &, not possible to change ?

  The SAP error message /NFM/CO002 Material & is locked by user &, not possible to change indicates that the material you are trying to modify is currently locked by another user. This locking mechanism is a part of SAP's data integrity and concurrency control, ensuring that multiple users do not make conflicting changes to the same data simultaneously.
  Cause:
  
  User Lock: Another user is currently editing the material, which prevents other users from making changes.
  Session Lock: The user who locked the material may have left their session open, causing the lock to persist.
  Background Jobs: Sometimes, background jobs or processes may also lock materials while they are being processed.
  
  Solution:
  
  
  Identify the Locking User: 
  
  You can use transaction code SM12 to view the list of locks in the system. Here, you can identify which user has locked the material.
  
  
  
  Contact the Locking User: 
  
  If you identify the user who has locked the material, you can reach out to them to see if they can release the lock.
  
  
  
  Release the Lock: 
  
  If the locking user is unavailable or if the lock is no longer needed, you can manually release the lock using transaction code SM12. However, be cautious when doing this, as it may lead to data inconsistencies if the other user is still working on the material.
  
  
  
  Wait for the Lock to be Released: 
  
  If the lock is temporary, you may choose to wait until the user finishes their work and the lock is automatically released.
  
  
  
  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:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related issues.
  SE11: To check the data dictionary for the material table if needed.
  
  
  
  Lock Types: Understand that locks can be either exclusive (preventing all other changes) or shared (allowing read access but preventing changes).
  
  
  User Training: Ensure that users are trained on how to properly exit transactions to avoid leaving locks in the system.
  
  
  System Configuration: In some cases, system settings regarding lock timeouts can be adjusted by a system administrator to minimize the impact of long locks.
  
  
  By following these steps, you should be able to resolve the issue related to the locked material in SAP.