How To Fix /SCWM/MONITOR139 - LUW update still running for queue &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MONITOR -

• Message number: 139

• Message text: LUW update still running for queue &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MONITOR139 - LUW update still running for queue &1 ?

  The SAP error message /SCWM/MONITOR139 LUW update still running for queue &1 typically indicates that there is a long-running update process in the SAP system that is preventing further processing of the specified queue. This can occur in the context of the Extended Warehouse Management (EWM) module, where the system is trying to process a queue but is blocked by an ongoing update.
  Cause:
  
  Long-running LUW (Logical Unit of Work): The update process associated with the queue is taking longer than expected, possibly due to heavy data processing or system performance issues.
  Deadlocks or Locks: There may be locks on database tables that are preventing the LUW from completing.
  System Performance Issues: High system load or resource contention can lead to delays in processing updates.
  Data Volume: Large volumes of data being processed can also contribute to longer processing times.
  
  Solution:
  
  
  Monitor the Update Process:
  
  Use transaction codes like SM50 or SM66 to monitor the work processes and identify if the LUW is still active.
  Check transaction SM21 for system logs to see if there are any errors or warnings related to the update.
  
  
  
  Check for Locks:
  
  Use transaction SM12 to check for any locks that might be preventing the LUW from completing. If you find locks that are no longer needed, you can release them (with caution).
  
  
  
  Analyze Performance:
  
  Use transaction ST22 to check for dumps that might indicate performance issues.
  Use transaction ST03N to analyze workload and performance metrics.
  
  
  
  Increase System Resources:
  
  If the system is under heavy load, consider increasing the resources (CPU, memory) allocated to the SAP system.
  
  
  
  Review Custom Code:
  
  If there are custom developments or enhancements that are part of the LUW, review them for performance issues.
  
  
  
  Restart the Queue:
  
  If the LUW is confirmed to be stuck and cannot be resolved, you may need to restart the queue or the related processes. This should be done with caution and ideally during a maintenance window.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50 / SM66: Monitor work processes.
  SM12: Check and manage locks.
  ST22: Analyze dumps.
  ST03N: Performance analysis.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for Extended Warehouse Management for more details on queue processing and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  Always ensure that you have proper backups and that you are following your organization's change management policies when making changes to the system.