5B051 - Table & is locked at present

SAP Error Message - Details

• Message type: E = Error

• Message class: 5B -

• Message number: 051

• Message text: Table & is locked at present

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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AnswerBot

• What is the cause and solution for SAP error message 5B051 - Table & is locked at present ?

  The SAP error message "5B051 Table & is locked at present" indicates that a specific database table is currently locked, preventing any operations (like updates, inserts, or deletes) from being performed on it. This can happen for various reasons, such as ongoing transactions, background jobs, or other users accessing the table.
  Causes:
  
  Active Transactions: A transaction is currently using the table, which locks it until the transaction is completed.
  Background Jobs: A background job may be running that is accessing the table.
  Long-Running Processes: Processes that take a long time to complete can hold locks on tables.
  Deadlocks: Situations where two or more processes are waiting for each other to release locks can also lead to this error.
  Manual Locks: Locks may have been manually set by a user or administrator.
  
  Solutions:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to view and manage locks. You can see which user or process is holding the lock on the table.
  Use transaction code SM21 to check the system log for any related messages.
  
  
  
  Release the Lock:
  
  If you identify a user or process that is holding the lock and it is safe to do so, you can manually delete the lock entry in SM12.
  Ensure that the transaction or job holding the lock is completed or terminated if it is no longer needed.
  
  
  
  Check Background Jobs:
  
  Use transaction code SM37 to check for any background jobs that might be running and holding locks on the table. You can cancel or adjust these jobs if necessary.
  
  
  
  Review Code:
  
  If the locking is due to custom code or reports, review the code to ensure that it is optimized and does not hold locks longer than necessary.
  
  
  
  Increase Timeout Settings:
  
  If locks are common due to high usage, consider adjusting the timeout settings for transactions to allow for longer wait times before an error is thrown.
  
  
  
  Consult Basis Team:
  
  If the issue persists, consult your SAP Basis team for further investigation. They can analyze the system performance and locking behavior.
  
  
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks is crucial. SAP uses different types of locks (exclusive, shared) to manage data integrity.
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log for monitoring.
  SM37: Monitor background jobs.
  
  
  Performance Tuning: Regularly monitor and tune the performance of your SAP system to minimize locking issues.
  
  By following these steps, you should be able to identify the cause of the lock and take appropriate action to resolve the error.