How To Fix /SAPAPO/DMRES094 - Model &1 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DMRES -

• Message number: 094

• Message text: Model &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 /SAPAPO/DMRES094 - Model &1 is locked by user &2 ?

  The SAP error message /SAPAPO/DMRES094 Model &1 is locked by user &2 typically occurs in the SAP Advanced Planning and Optimization (APO) module when a user attempts to access or modify a planning model that is currently locked by another user. This locking mechanism is in place to prevent data inconsistencies that could arise from simultaneous modifications.
  Cause:
  
  User Locking: The model is locked by another user who is currently working on it. This could be due to a long-running transaction or an active session that has not been properly closed.
  System Error: Sometimes, a system error or crash can leave a lock in place even if the user is no longer actively using the model.
  Background Jobs: A background job might be running that has locked the model for processing.
  
  Solution:
  
  Wait for Release: If the lock is held by another user, the simplest solution is to wait until that user completes their work and releases the lock.
  Identify the Lock: Use transaction code SM12 to check for locks in the system. You can search for locks by user or by the object type. This will help you identify who is holding the lock.
  Contact the User: If you identify the user holding the lock, you can contact them to see if they can release it.
  Release the Lock: If the user is unavailable or if the lock is stale (e.g., due to a session crash), an administrator can manually release the lock using transaction SM12. However, this should be done with caution to avoid data inconsistencies.
  Check Background Jobs: If a background job is causing the lock, you may need to wait for it to complete or check its status in transaction SM37.
  Review System Logs: If the issue persists, review system logs for any errors or warnings that might indicate underlying issues.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks are typically managed at the database level, and different types of locks (exclusive, shared) can affect how users interact with the data.
  User Roles and Permissions: Ensure that users have the appropriate roles and permissions to access the models they need, as this can sometimes lead to confusion about locks.
  Performance Monitoring: Regularly monitor system performance and user activity to identify patterns that may lead to frequent locking issues.
  
  If the problem continues to occur frequently, it may be worth reviewing the processes and workflows in place to ensure they are optimized for concurrent access.