How To Fix /SAPAPO/DMRES026 - Quantity/rate definition &1 has been locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 026

• Message text: Quantity/rate definition &1 has been locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DMRES026 - Quantity/rate definition &1 has been locked by user &2 ?

  The SAP error message /SAPAPO/DMRES026 indicates that a specific quantity or rate definition in the SAP Advanced Planning and Optimization (APO) module is locked by a user. This typically occurs when a user is currently editing or has opened a resource definition, preventing other users from making changes to it simultaneously.
  Cause:
  
  User Lock: The resource definition is currently being edited by another user, which causes a lock on that specific entry.
  Session Timeout: Sometimes, if a user has an active session that has not been properly closed, it may still hold a lock on the resource.
  System Error: Occasionally, system errors or crashes can leave locks in place that do not get released properly.
  
  Solution:
  
  Wait and Retry: If the lock is due to another user editing the resource, the simplest solution is to wait until that user has finished their work and released the lock.
  Identify the Locking User: You can use transaction code SM12 to check for locks in the system. Look for the user ID mentioned in the error message and see if they are still active.
  Release the Lock: If the locking user is no longer active (e.g., due to a session timeout or unexpected logout), an administrator can manually release the lock using transaction SM12. However, this should be done with caution to avoid data inconsistency.
  Check for Background Jobs: Sometimes, background jobs may hold locks. Check if any background processes are running that might be using the resource.
  Review System Logs: If the issue persists, review system logs for any errors or warnings that might indicate why the lock is not being released.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks in the system.
  SM21: To check system logs for any related errors.
  SM37: To monitor background jobs that might be affecting the resource.
  
  
  
  User Communication: If you are in a collaborative environment, communicate with the user who has the lock to coordinate changes.
  
  
  Documentation: Refer to SAP documentation or support notes for more detailed troubleshooting steps related to locking issues in APO.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to locking in APO.
  
  
  By following these steps, you should be able to resolve the locking issue and continue working with the resource definitions in SAP APO.