How To Fix /SCWM/SERIAL112 - At least one serial number or unique item identifier is locked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SERIAL -

• Message number: 112

• Message text: At least one serial number or unique item identifier is locked by user &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/SERIAL112 - At least one serial number or unique item identifier is locked by user &1 ?

  The SAP error message /SCWM/SERIAL112 indicates that at least one serial number or unique item identifier is locked by a specific user. This typically occurs in the context of warehouse management and inventory processes where serial numbers are used to track individual items.
  Cause:
  
  Locked Serial Number: The serial number or unique item identifier you are trying to access or modify is currently locked by another user. This can happen if another user is performing an operation on the same item, such as picking, packing, or inventory counting.
  Session Issues: Sometimes, a session may not have been properly closed, leaving the serial number locked.
  Long-running Transactions: If a transaction takes a long time to complete, it may hold locks on the serial numbers for an extended period.
  
  Solution:
  
  Identify the Locking User: Check the user ID mentioned in the error message (&1). You can use transaction codes like SM12 (to view and manage locks) to see which user is holding the lock on the serial number.
  Wait for Release: If the locking user is performing a legitimate operation, you may need to wait until they complete their task and release the lock.
  Contact the User: If possible, communicate with the user who is holding the lock to understand their activity and see if they can release the lock.
  Force Release (if necessary): If the lock is not being released and you have the necessary authorizations, you can manually delete the lock using transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Long-running Transactions: Investigate if there are any long-running transactions that may be causing the lock. You can use transaction SM66 to monitor active processes in the system.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM66: To monitor active processes.
  SM21: To check system logs for any related issues.
  
  
  Documentation: Refer to SAP Help documentation for more details on serial number management and locking mechanisms in SAP Extended Warehouse Management (EWM).
  Best Practices: Implement best practices for managing serial numbers and unique identifiers to minimize locking issues, such as ensuring that users are trained on proper transaction handling and encouraging timely completion of tasks.
  
  By following these steps, you should be able to resolve the error and understand the underlying issues related to locked serial numbers in SAP.