How To Fix /SCWM/MFS450 - &1: WT was not found on database after failed lock on HU &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MFS -

• Message number: 450

• Message text: &1: WT was not found on database after failed lock on HU &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MFS450 - &1: WT was not found on database after failed lock on HU &2 ?

  The SAP error message /SCWM/MFS450 &1: WT was not found on database after failed lock on HU &2 typically occurs in the context of the SAP Extended Warehouse Management (EWM) system, particularly when dealing with handling units (HUs) and warehouse tasks (WTs). This error indicates that the system was unable to find a specific warehouse task in the database after a failed attempt to lock a handling unit.
  Cause:
  
  Concurrency Issues: The error often arises due to concurrent processing where multiple transactions are trying to access or modify the same handling unit or warehouse task simultaneously.
  Database Inconsistency: There may be inconsistencies in the database, possibly due to incomplete transactions or issues during data updates.
  Locking Mechanism: The locking mechanism in SAP may have failed, leading to the inability to retrieve the warehouse task associated with the handling unit.
  Incorrect Configuration: There might be configuration issues in the EWM system that affect how handling units and warehouse tasks are managed.
  
  Solution:
  
  Check for Concurrent Processes: Investigate if there are other processes or users trying to access the same handling unit or warehouse task. If so, wait for those processes to complete.
  Database Consistency Check: Perform a consistency check on the database to ensure that all entries related to handling units and warehouse tasks are intact. You may need to run specific SAP transactions or reports to identify inconsistencies.
  Lock Management: Review the lock entries in the system using transaction SM12 to see if there are any stale locks that need to be cleared. If necessary, you can delete the locks, but be cautious as this may affect other users.
  Reprocess the Task: If the warehouse task is not found, you may need to recreate or reprocess the task associated with the handling unit.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide patches and updates that could resolve the issue.
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it appears to be a bug or a deeper system issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for lock entries), SLG1 (for application logs), and SE11 (for data dictionary) to investigate the issue further.
  EWM Configuration: Review the configuration settings in the EWM system related to handling units and warehouse tasks to ensure they are set up correctly.
  User Authorizations: Ensure that the user has the necessary authorizations to access and modify handling units and warehouse tasks.
  
  By following these steps, you should be able to diagnose and resolve the error message /SCWM/MFS450 &1: WT was not found on database after failed lock on HU &2.