How To Fix MO436 - Table entry locked at present

SAP Error Message - Details

• Message type: E = Error

• Message class: MO - Modeling and Prototyping

• Message number: 436

• Message text: Table entry locked at present

What causes this issue?

The table entry &V1& is currently being edited.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MO436 - Table entry locked at present ?

  The SAP error message MO436 ("Table entry locked at present") typically occurs when a user attempts to modify or access a table entry that is currently locked by another user or process. This can happen in various scenarios, such as when multiple users are trying to access the same data simultaneously, or when a transaction is not completed properly, leaving the entry in a locked state.
  Causes:
  
  Concurrent Access: Another user or process is currently editing or has locked the entry in the database.
  Unfinished Transactions: A previous transaction may not have been completed, leaving the entry in a locked state.
  System Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a record is being processed, it will be locked until the process is completed.
  Long-running Processes: Background jobs or long-running transactions may hold locks longer than expected.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify the Lock: Use transaction codes like SM12 (for lock entries) to identify which user or process is holding the lock. You can check the lock entries and see if you can contact the user or terminate the session if necessary.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. Be cautious with this approach, as it may lead to data inconsistencies if the other process is still running.
  Check for Background Jobs: Use transaction SM37 to check if there are any background jobs that might be holding locks on the table.
  Review Transaction Logs: Check transaction logs to see if there are any issues with the transactions that might be causing the lock.
  Consult with Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate further, especially if it is a recurring issue.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. SAP uses both exclusive locks (for write operations) and shared locks (for read operations).
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: Display and manage lock entries.
  SM21: System log for monitoring system messages.
  SM37: Monitor background jobs.
  
  
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks.
  
  By following these steps, you should be able to diagnose and resolve the MO436 error in SAP.