How To Fix 5A156 - Inverse object &1 locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 5A - Basis Personnel Management

• Message number: 156

• Message text: Inverse object &1 locked by user &2

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 5A156 - Inverse object &1 locked by user &2 ?

  The SAP error message 5A156 indicates that an inverse object (such as a document or a record) is locked by a specific user. This typically occurs when a user is trying to access or modify an object that is currently being edited or processed by another user. 
  Cause:
  
  User Lock: The object is locked by another user, which prevents other users from making changes to it.
  Transaction in Progress: The user who locked the object may be in the middle of a transaction that has not yet been completed.
  System Lock: Sometimes, system processes or background jobs may also lock objects temporarily.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, you can wait for the other user to finish their transaction and then try again.
  Identify the Locking User: Use transaction code SM12 to view the list of locks in the system. You can check which user has locked the object and the details of the lock.
  Contact the Locking User: If possible, contact the user who has locked the object to see if they can release the lock.
  Release the Lock: If the locking user is unavailable and you have the necessary authorizations, you can manually delete the lock using transaction SM12. However, this should be done with caution, as it may lead to data inconsistencies.
  Check for Background Jobs: If the lock is due to a background job, you may need to wait for the job to complete or check the job status in transaction SM37.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM37: To check the status of background jobs.
  
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting similar issues in the future.
  User Communication: Establishing a protocol for users to communicate when they are working on shared objects can help minimize locking issues.
  
  Always ensure that you have the appropriate permissions and follow your organization's policies when dealing with locks in SAP.