How To Fix MPE_OAN014 - Operation activity network &1 is locked by another user


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MPE_OAN - Operation Activity Network Messages

  • Message number: 014

  • Message text: Operation activity network &1 is locked by another user

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  • 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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    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

  • What is the cause and solution for SAP error message MPE_OAN014 - Operation activity network &1 is locked by another user ?

    The SAP error message MPE_OAN014 indicates that an operation activity network (OAN) is currently locked by another user. This typically occurs when one user is editing or processing a network, and another user attempts to access it simultaneously. Here’s a breakdown of the cause, potential solutions, and related information:

    Cause:

    1. Concurrent Access: Another user is currently working on the same operation activity network, which prevents other users from making changes.
    2. Session Timeout: A previous session may not have been properly closed, leaving the network locked.
    3. System Error: Occasionally, system errors or crashes can leave a lock in place.

    Solution:

    1. Wait and Retry: The simplest solution is to wait for the other user to finish their work and release the lock. You can periodically check if the lock has been released.
    2. Identify the Locking User: If you have the necessary permissions, you can use transaction code SM12 to view and manage locks. This will allow you to see which user is holding the lock and potentially contact them.
    3. Release the Lock: If you determine that the lock is no longer needed (e.g., the user has left the session), you can manually delete the lock entry in SM12. However, this should be done with caution and typically requires administrative privileges.
    4. Check for Background Jobs: Sometimes, background jobs may hold locks. Check if any background processes are running that might be using the network.
    5. System Restart: In rare cases, a system restart may be necessary to clear persistent locks, but this should be done as a last resort and typically requires coordination with your IT department.

    Related Information:

    • Transaction Codes:

      • SM12: To view and manage lock entries.
      • SM21: To check system logs for any related errors or issues.
      • SM37: To monitor background jobs that might be affecting the network.
    • User Communication: If you are in a collaborative environment, it may be helpful to communicate with your team to avoid simultaneous access to the same network.

    • Documentation: Refer to SAP documentation or your organization's SAP support for specific guidelines on handling locks and user access.

    • SAP Notes: Check for any relevant SAP Notes that may address this issue or provide additional troubleshooting steps.

    By following these steps, you should be able to resolve the MPE_OAN014 error and regain access to the operation activity network.

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