How To Fix /AIF/ALERT013 - Waiting; interface &1 is locked by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/ALERT -

• Message number: 013

• Message text: Waiting; interface &1 is locked by &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/ALERT013 - Waiting; interface &1 is locked by &2 ?

  The SAP error message /AIF/ALERT013 Waiting; interface &1 is locked by &2 typically occurs in the context of the Application Interface Framework (AIF) when an interface is locked by another process or user. This can happen for various reasons, such as a long-running process, a transaction that has not been completed, or a manual lock set by a user.
  Cause:
  
  Long-Running Process: Another process is currently processing the same interface, causing it to be locked.
  Manual Lock: A user or administrator may have manually locked the interface for maintenance or troubleshooting.
  Transaction Not Completed: A previous transaction that used the interface has not been completed or has failed, leaving the interface in a locked state.
  Deadlock Situation: In some cases, a deadlock situation may arise where two processes are waiting for each other to release locks.
  
  Solution:
  
  Identify the Locking Process: Use transaction codes like SM12 (to view and manage locks) or SM21 (to check the system log) to identify which user or process is holding the lock.
  Release the Lock: If the locking process is no longer needed, you can manually release the lock using SM12. Be cautious when doing this, as it may affect ongoing processes.
  Check for Long-Running Jobs: Use transaction SM37 to check for any long-running jobs that may be using the interface. If necessary, you can terminate these jobs.
  Review Interface Configuration: Ensure that the interface is configured correctly and that there are no issues with the data being processed.
  Retry the Process: After resolving the locking issue, retry the process that was initially blocked.
  Monitor for Recurrence: Keep an eye on the interface to ensure that the locking issue does not recur. If it does, further investigation may be needed to identify underlying issues.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check the system log for errors and warnings.
  SM37: To monitor background jobs.
  
  
  Documentation: Refer to SAP Help documentation for AIF for more details on interface management and troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to AIF locking problems.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.