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How To Fix WGDS_CONFIRMATION102 - System failure:Item &1 could not be locked


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WGDS_CONFIRMATION - Confirmation messages

  • Message number: 102

  • Message text: System failure:Item &1 could not be locked

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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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Smart SAP Assistant

  • What is the cause and solution for SAP error message WGDS_CONFIRMATION102 - System failure:Item &1 could not be locked ?

    The SAP error message:

    WGDS_CONFIRMATION102: System failure: Item &1 could not be locked

    typically occurs in the context of Warehouse Management (WM) or Extended Warehouse Management (EWM) processes, especially during goods movement confirmations or warehouse task processing.


    Cause

    • Locking Conflict: The error indicates that the system tried to lock a particular item (e.g., a warehouse task, transfer order, or document item) but failed because the item is already locked by another user or process.
    • Concurrent Access: This usually happens when two or more users or background jobs attempt to process or confirm the same warehouse task or document item simultaneously.
    • Long-running Transactions: Sometimes, a previous process or user session has locked the item and has not released the lock yet (e.g., due to a long-running transaction, system hang, or incomplete process).
    • Inconsistent System State: In rare cases, system inconsistencies or database locking issues can cause the lock to remain even though no active process is using it.

    Solution

    1. Check for Active Locks:

      • Use transaction SM12 to check for locks on the object related to the item mentioned in the error.
      • Identify if there is a lock on the item &1 (the actual item number will be shown in the error message).
      • If the lock is held by a user or process that is no longer active, you may consider deleting the lock after confirming it is safe to do so.
    2. Avoid Concurrent Processing:

      • Ensure that the same warehouse task or document is not being processed simultaneously by multiple users or background jobs.
      • Coordinate processing times or implement queue mechanisms if necessary.
    3. Check for Incomplete or Stuck Processes:

      • Investigate if there are any stuck or incomplete warehouse tasks or confirmations.
      • Restart or cancel such processes if needed.
    4. System Performance and Updates:

      • Sometimes, system performance issues cause locks to be held longer than usual.
      • Ensure the system is properly patched and updated.
      • Check for OSS notes related to locking issues in WM/EWM.
    5. Debugging:

      • If the problem persists, debugging the function/module that tries to lock the item can help identify why the lock cannot be obtained.
      • Common function modules involved in locking warehouse tasks include ENQUEUE_EWMTASK or similar enqueue function modules.

    Related Information

    • Transaction SM12: To monitor and manage lock entries.
    • Warehouse Management (WM) / Extended Warehouse Management (EWM): The error is common in these modules during task confirmation or goods movement.
    • Enqueue/Dequeue Mechanism: SAP uses enqueue (locking) and dequeue (unlocking) function modules to manage concurrent access to business objects.
    • OSS Notes: Search SAP Support Portal for notes related to WGDS_CONFIRMATION102 or locking issues in WM/EWM.
    • Typical Objects Locked: Warehouse tasks, transfer orders, delivery items, or confirmation documents.

    Summary

    Aspect Details
    Cause Item is already locked by another user/process; concurrent access conflict.
    Solution Check and remove stale locks (SM12), avoid concurrent processing, investigate stuck tasks.
    Related WM/EWM module, enqueue/dequeue mechanism, transaction SM12, SAP OSS notes.

    If you provide the exact item number or context (e.g., transaction or process step), I can help you with more specific guidance.

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