How To Fix /SAPAPO/CTM1256 - Planning version locked by user &2, CTM profile &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 256

• Message text: Planning version locked by user &2, CTM profile &1

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPAPO/CTM1256 - Planning version locked by user &2, CTM profile &1 ?

  The SAP error message /SAPAPO/CTM1256 indicates that a planning version is locked by a specific user and a CTM (Capable-to-Match) profile. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a user is trying to execute a planning operation (like a CTM run) on a version that is currently locked by another user.
  Cause:
  
  User Lock: The planning version is locked by another user who is currently working on it or has not released the lock after their session.
  CTM Profile: The specific CTM profile being used is associated with the locked planning version, which prevents other users from executing planning operations on it.
  Session Timeout: Sometimes, a user may have left a session open, causing the lock to persist longer than necessary.
  
  Solution:
  
  Identify the Locking User: Check who is currently locking the planning version. This can usually be done through transaction codes like SM12 (to view locks) or SM21 (to check system logs).
  Contact the User: If possible, contact the user who has the lock and ask them to release it. They can do this by either completing their task or explicitly releasing the lock.
  Release the Lock: If the locking user is unavailable or the session is no longer active, a system administrator can manually release the lock using transaction SM12. However, this should be done with caution to avoid disrupting the work of others.
  Check for Long-Running Processes: Investigate if there are any long-running processes that might be holding the lock. If so, consider terminating those processes if they are no longer needed.
  Review CTM Profile Settings: Ensure that the CTM profile settings are correctly configured and that they do not inadvertently cause unnecessary locks.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related issues.
  CTM: To access the Capable-to-Match planning functions.
  
  
  User Documentation: Review SAP documentation for best practices on managing planning versions and CTM profiles.
  System Administration: Involve your SAP Basis team if you frequently encounter locking issues, as they can help optimize system performance and user session management.
  
  By following these steps, you should be able to resolve the /SAPAPO/CTM1256 error and continue with your planning activities in SAP APO.