How To Fix /SCWM/WHO301 - One of the warehouse orders is already being processed by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/WHO -

• Message number: 301

• Message text: One of the warehouse orders is already being processed by user &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/WHO301 - One of the warehouse orders is already being processed by user &1 ?

  The SAP error message /SCWM/WHO301 indicates that a warehouse order is currently being processed by another user. This typically occurs in the SAP Extended Warehouse Management (EWM) module when multiple users attempt to work on the same warehouse order simultaneously.
  Cause:
  
  Concurrent Processing: Another user has already started processing the warehouse order, and the system prevents multiple users from working on the same order to avoid data inconsistencies.
  Session Timeout: If a user has an active session that has not been properly closed, it may still lock the warehouse order.
  System Configuration: The system may be configured to restrict access to certain warehouse orders based on user roles or statuses.
  
  Solution:
  
  Identify the User: Check which user is currently processing the warehouse order. This can often be done through transaction codes like SM12 (to view locks) or SM21 (to view system logs).
  Wait for Completion: If another user is legitimately processing the order, wait until they complete their task.
  Release Locks: If you believe the lock is no longer valid (e.g., the user has logged off unexpectedly), you can release the lock using transaction SM12. However, this should be done with caution and ideally with the knowledge of the user who is processing the order.
  Check User Sessions: Ensure that there are no orphaned sessions that might be holding onto the warehouse order. You can check active sessions using transaction AL08.
  Review Configuration: If this issue occurs frequently, review the system configuration and user roles to ensure that they are set up correctly to avoid unnecessary locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To view system logs.
  AL08: To view active user sessions.
  
  
  Documentation: Refer to SAP Help documentation for Extended Warehouse Management for more details on warehouse order processing and user management.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error message.
  
  By following these steps, you should be able to resolve the /SCWM/WHO301 error and continue processing your warehouse orders effectively.