How To Fix /SCWM/MFS118 - Unable to lock HU &1 during WT confirmation

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 118

• Message text: Unable to lock HU &1 during WT confirmation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MFS118 - Unable to lock HU &1 during WT confirmation ?

  The SAP error message /SCWM/MFS118 Unable to lock HU &1 during WT confirmation typically occurs in the context of Warehouse Management and Handling Unit (HU) management within the SAP Extended Warehouse Management (EWM) module. This error indicates that the system is unable to lock the specified Handling Unit (HU) during the confirmation of a Warehouse Task (WT). 
  Causes:
  
  Concurrent Access: Another process or user might be accessing or modifying the same Handling Unit (HU) at the same time, leading to a lock conflict.
  Incomplete Processes: The HU might be involved in another transaction that has not been completed, such as an open transfer order or a pending confirmation.
  System Configuration: There may be configuration issues related to the handling of HUs or Warehouse Tasks in the system.
  Database Locking: Database-level locks might be preventing the system from accessing the HU.
  
  Solutions:
  
  
  Check for Concurrent Processes: Investigate if another user or process is currently working with the same HU. You can use transaction codes like SM12 (to check for locks) or SM21 (to check system logs) to identify any active sessions that might be causing the lock.
  
  
  Complete Pending Transactions: Ensure that all related transactions involving the HU are completed. This includes checking for any open transfer orders or pending confirmations that might be blocking access.
  
  
  Retry Confirmation: After resolving any conflicts or completing pending transactions, try to confirm the Warehouse Task again.
  
  
  Review System Configuration: If the issue persists, review the configuration settings related to HUs and Warehouse Tasks in the EWM system. Ensure that the settings align with your business processes.
  
  
  Consult SAP Notes: Check for any relevant SAP Notes that might address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  
  
  Contact SAP Support: If the problem continues and you cannot identify the cause, consider reaching out to SAP Support for further assistance. They can provide insights based on the specific configuration and version of your SAP system.
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage locks.
  SM21: To check system logs for errors.
  /SCWM/PRDI: To monitor and manage handling units.
  
  
  
  Documentation: Review SAP EWM documentation for best practices on handling HUs and managing Warehouse Tasks.
  
  
  User Roles and Authorizations: Ensure that users have the appropriate roles and authorizations to perform actions on HUs and Warehouse Tasks.
  
  
  By following these steps, you should be able to diagnose and resolve the issue related to the error message /SCWM/MFS118 Unable to lock HU &1 during WT confirmation.