How To Fix CI303 - General task list is already being processed

SAP Error Message - Details

• Message type: E = Error

• Message class: CI - Plant maintenance task list messages

• Message number: 303

• Message text: General task list is already being processed

What causes this issue?

You selected a general maintenance task list which is being edited
either by you in another mode or by another user.

System Response

The system locks any further editing calls until the editing that is
currently active has been completed.

How to fix this error?

Check whether you called up the task list yourself in another mode. If
so, continue processing it there.
If another user is editing the task list, wair till that person has
finished.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CI303 - General task list is already being processed ?

  The SAP error message CI303, which states "General task list is already being processed," typically occurs when there is an attempt to process a task list that is already being executed or is locked by another user or session. This can happen in various scenarios, such as when multiple users try to access or modify the same task list simultaneously.
  Causes:
  
  Concurrent Access: Another user or session is currently processing the same general task list.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a task list is locked, other attempts to access it will result in this error.
  Long-running Processes: If a task list is taking a long time to process, it may appear as if it is still being processed, leading to this error for subsequent attempts.
  System Issues: Occasionally, system issues or bugs can lead to incorrect locking behavior.
  
  Solutions:
  
  Wait and Retry: If the task list is being processed by another user, wait for a while and then try again.
  Check for Active Sessions: Use transaction codes like SM12 (to check for locks) and SM21 (to check system logs) to identify if another session is holding the lock on the task list.
  Release Locks: If you find that a session is holding a lock unnecessarily, you can release it using transaction SM12, but be cautious as this may affect other users.
  Check Background Jobs: If the task list is being processed as part of a background job, check the status of the job in transaction SM37. If it is stuck, you may need to cancel or restart it.
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team for further assistance.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To view system logs for errors and warnings.
  SM37: To monitor background jobs.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches/updates.
  Documentation: Review SAP documentation related to task list processing and locking mechanisms for a deeper understanding.
  
  By following these steps, you should be able to resolve the CI303 error and continue working with the general task list in SAP.