How To Fix UJCTRL_EXCEPTION029 - Control Set &1 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UJCTRL_EXCEPTION - BPC: control exception message class

• Message number: 029

• Message text: Control Set &1 is locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJCTRL_EXCEPTION029 - Control Set &1 is locked by user &2 ?

  The SAP error message UJCTRL_EXCEPTION029 indicates that a control set (in this case, identified by &1) is currently locked by another user (identified by &2). This typically occurs in the context of SAP's Integrated Business Planning (IBP) or similar applications where control sets are used for planning and forecasting.
  Cause:
  
  User Locking: The control set is being accessed or modified by another user, which prevents other users from making changes to it simultaneously.
  Session Timeout: A user may have left a session open, causing the control set to remain locked.
  System Error: Occasionally, a system error or crash may leave a control set in a locked state.
  
  Solution:
  
  Wait and Retry: If the control set is locked by another user, the simplest solution is to wait until that user has finished their work and released the lock.
  Contact the User: If you know who the user is, you can reach out to them to ask if they can release the lock.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user is holding the lock and potentially release it if you have the necessary permissions.
  System Administrator Intervention: If the lock persists and you cannot resolve it, contact your system administrator. They can forcibly release the lock if necessary, but this should be done with caution to avoid data inconsistencies.
  Review User Permissions: Ensure that users have the appropriate permissions and that there are no unnecessary locks being held.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or issues.
  
  
  Documentation: Refer to SAP Help documentation for more details on control sets and locking mechanisms in the specific module you are working with.
  Best Practices: Encourage users to log out of sessions when they are done, and to avoid leaving control sets open unnecessarily.
  
  By following these steps, you should be able to address the UJCTRL_EXCEPTION029 error effectively.