How To Fix /SCWM/RFID001 - User &1 Has Locked At Least One EPC

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/RFID -

• Message number: 001

• Message text: User &1 Has Locked At Least One EPC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/RFID001 - User &1 Has Locked At Least One EPC ?

  The SAP error message /SCWM/RFID001 User &1 Has Locked At Least One EPC typically occurs in the context of SAP Extended Warehouse Management (EWM) when dealing with RFID (Radio Frequency Identification) technology. This error indicates that a specific user has locked one or more EPC (Electronic Product Code) items, preventing other users from processing or modifying those items.
  Cause:
  
  User Locking: The user identified in the error message has an active session or transaction that is currently locking the EPC. This can happen if the user is in the middle of processing an RFID transaction, such as receiving or shipping goods.
  Session Timeout: If a user has not completed their transaction and has left the session open, it may lead to a lock on the EPC.
  Concurrent Access: Multiple users trying to access or modify the same EPC simultaneously can lead to locking issues.
  
  Solution:
  
  Identify the User: Check the user ID mentioned in the error message. You can use transaction codes like SM12 (to view and manage locks) to see which EPCs are locked by that user.
  Release the Lock: If the user is not actively working on the EPC, you can manually release the lock using transaction SM12. However, be cautious when doing this, as it may disrupt the user's ongoing work.
  User Communication: If possible, communicate with the user to ensure they complete their transaction or log out properly to release the lock.
  Session Management: Encourage users to log out of the system when they are done with their tasks to prevent unnecessary locks.
  Review System Configuration: If this issue occurs frequently, consider reviewing the system configuration and user access patterns to optimize how EPCs are managed.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view locks), SM21 (to check system logs), and SLG1 (to view application logs) for troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to EPC locking in your version of SAP EWM.
  User Training: Provide training to users on how to properly handle transactions involving EPCs to minimize locking issues.
  System Performance: Monitor system performance and user activity to identify patterns that may lead to locking issues.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future.