How To Fix /SAPAPO/SDP_TLBGUI026 - The selection chosen is locked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SDP_TLBGUI -

• Message number: 026

• Message text: The selection chosen is locked by user &1

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 /SAPAPO/SDP_TLBGUI026 - The selection chosen is locked by user &1 ?

  The SAP error message /SAPAPO/SDP_TLBGUI026 indicates that the selection you are trying to access in the SAP Advanced Planning and Optimization (APO) system is currently locked by another user. This typically occurs when a user is actively working on a planning selection, and the system prevents other users from making changes to avoid conflicts.
  Cause:
  
  User Lock: Another user has opened the same planning selection and has not yet released it.
  Session Timeout: The previous user may have left the session open, causing the lock to persist.
  System Configuration: Certain configurations in the system may lead to prolonged locks on selections.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, you can wait for the other user to finish their work and release the lock. You can try again after some time.
  Identify the Locking User: If you have the necessary permissions, you can check who is currently locking the selection. You can do this by:
  
  Using transaction code SM12 to view and manage locks.
  Look for the user ID mentioned in the error message (e.g., &1).
  
  
  Contact the Locking User: If you identify the user, you can reach out to them to see if they can release the lock.
  Force Release the Lock: If the locking user is unavailable and you have the necessary authorizations, you can manually delete the lock in transaction SM12. Be cautious with this approach, as it may lead to data inconsistencies if the user is still working on the selection.
  Check for System Issues: If this issue occurs frequently, it may be worth investigating if there are any underlying system issues or configurations that need to be addressed.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related issues.
  ST22: To check for dumps that might indicate underlying problems.
  
  
  User Documentation: Refer to SAP documentation for more details on handling locks and user sessions in APO.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the problem persists or if you are unsure about taking any actions, it is advisable to consult with your SAP Basis or support team for further assistance.