How To Fix CNV_DMC_MC_EXCEPTION136 - Action not possible; &1 &3 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 136

• Message text: Action not possible; &1 &3 is locked by user &2

What causes this issue?

The object is currently locked by user &V1&. It is not possible to view
or edit the object until it is released by this user.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION136 - Action not possible; &1 &3 is locked by user &2 ?

  The SAP error message CNV_DMC_MC_EXCEPTION136 indicates that a specific action cannot be performed because the object (e.g., a project, task, or data) is currently locked by another user. This is a common issue in SAP systems where multiple users may be trying to access or modify the same object simultaneously.
  Cause:
  
  
  Object Locking: The object you are trying to access is locked by another user. This can happen if:
  
  Another user is currently editing or processing the object.
  A previous session did not release the lock properly.
  The system is performing a background job that has locked the object.
  
  
  
  Transaction Management: In some cases, the locking mechanism is part of transaction management to ensure data integrity and consistency.
  
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to view the locks in the system. You can filter by the user ID mentioned in the error message to see what objects are locked.
  
  
  
  Release the Lock:
  
  If you have the necessary authorizations, you can manually release the lock from SM12. However, be cautious when doing this, as it may disrupt the work of the user who has the lock.
  
  
  
  Wait for the Lock to be Released:
  
  If the lock is held by another user who is actively working, it may be best to wait until they finish their task and the lock is released automatically.
  
  
  
  Check for Background Jobs:
  
  If the lock is due to a background job, you can check the status of the job using transaction SM37. If the job is stuck or taking too long, you may need to investigate further.
  
  
  
  Contact the User:
  
  If you know who the user is, you can reach out to them to see if they can release the lock or if they are done with their task.
  
  
  
  Related Information:
  
  Lock Management: SAP uses a locking mechanism to prevent data inconsistencies. Understanding how locks work in SAP can help in troubleshooting similar issues in the future.
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks in the system.
  System Performance: Frequent locking issues may indicate performance problems or inefficient processes that need to be addressed.
  
  If the problem persists or if you are unsure about releasing locks, it may be advisable to consult with your SAP Basis team or system administrator for further assistance.