How To Fix /SCWM/WHO406 - Error changing WTs for warehouse order &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/WHO -

• Message number: 406

• Message text: Error changing WTs for warehouse order &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/WHO406 - Error changing WTs for warehouse order &1 ?

  The SAP error message /SCWM/WHO406 typically occurs in the context of the Extended Warehouse Management (EWM) module when there is an issue with changing Warehouse Tasks (WTs) for a specific Warehouse Order (WO). This error can arise due to various reasons, and understanding the cause is essential for finding a solution.
  Cause
  The error message /SCWM/WHO406 can be triggered by several factors, including:
  
  Locked Warehouse Order: The warehouse order you are trying to change may be locked by another process or user.
  Inconsistent Data: There may be inconsistencies in the data related to the warehouse order or tasks.
  Status Issues: The warehouse order might be in a status that does not allow changes (e.g., completed or canceled).
  System Configuration: There may be configuration settings in the EWM system that prevent changes to the warehouse tasks.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the warehouse order or tasks.
  
  Solution
  To resolve the /SCWM/WHO406 error, you can take the following steps:
  
  
  Check Lock Status:
  
  Use transaction code SM12 to check if the warehouse order is locked by another user or process. If it is locked, you may need to wait for the lock to be released or contact the user who has locked it.
  
  
  
  Review Warehouse Order Status:
  
  Check the status of the warehouse order. If it is in a status that does not allow changes, you may need to take appropriate actions to change its status (e.g., cancel or complete the order).
  
  
  
  Data Consistency Check:
  
  Ensure that all related data for the warehouse order and tasks is consistent. You can use transaction codes like /SCWM/ORD to review the warehouse order details.
  
  
  
  Authorization Check:
  
  Verify that the user attempting to make the changes has the necessary authorizations. You can check this in the user roles and authorizations.
  
  
  
  System Configuration:
  
  Review the EWM configuration settings to ensure that there are no restrictions on changing warehouse tasks for the specific warehouse order.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant logs.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/ORD, /SCWM/WT, and SM12 for managing warehouse orders and tasks.
  Documentation: Review SAP EWM documentation for best practices on managing warehouse orders and tasks.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.