/EACC/ACINST002 - User &1 has locked data basis &2. No changes possible, try to display

SAP Error Message - Details

• Message type: E = Error

• Message class: /EACC/ACINST -

• Message number: 002

• Message text: User &1 has locked data basis &2. No changes possible, try to display

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.

Unfortunately, there isn't any extra information in this error notice.

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AnswerBot

• What is the cause and solution for SAP error message /EACC/ACINST002 - User &1 has locked data basis &2. No changes possible, try to display ?

  The SAP error message /EACC/ACINST002 User &1 has locked data basis &2. No changes possible, try to display indicates that a specific user (denoted by &1) has locked a particular data basis (denoted by &2), preventing any changes to that data. This is a common scenario in SAP systems where data integrity and concurrent access are managed through locking mechanisms.
  Cause:
  
  
  User Locking: The user mentioned in the error message has initiated a transaction that locks the data basis, which could be due to:
  
  An ongoing transaction that has not been completed.
  A previous session that was not properly closed.
  A long-running process that is still active.
  
  
  
  Data Integrity: SAP locks data to ensure that multiple users do not make conflicting changes at the same time, which could lead to data corruption or inconsistencies.
  
  
  Solution:
  
  
  Identify the User: Determine which user is locking the data basis. You can do this by checking the transaction logs or using transaction codes like SM12 (to view and manage lock entries).
  
  
  Release the Lock: If the user is not actively working on the data basis, you can manually release the lock:
  
  Go to transaction SM12.
  Enter the user ID and the relevant data basis.
  Delete the lock entry if it is safe to do so (ensure that the user is not performing critical operations).
  
  
  
  Communicate with the User: If the user is actively working on the data, communicate with them to understand their needs and coordinate the release of the lock.
  
  
  Check for Background Jobs: Sometimes, background jobs may hold locks. Check transaction SM37 to see if there are any jobs running that might be causing the lock.
  
  
  Review System Performance: If locks are a frequent issue, consider reviewing system performance and user training to minimize the occurrence of long-running transactions.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SM21: To check system logs for any related issues.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to locking mechanisms in your specific version of SAP.
  
  
  Documentation: Review SAP documentation on data locking and concurrency control for a deeper understanding of how locks work in SAP systems.
  
  
  By following these steps, you should be able to resolve the locking issue and prevent it from recurring in the future.