How To Fix /SCWM/SERIAL128 - Serial number &1 is already assigned to another UII (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SERIAL -

• Message number: 128

• Message text: Serial number &1 is already assigned to another UII (&2)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/SERIAL128 - Serial number &1 is already assigned to another UII (&2) ?

  The SAP error message /SCWM/SERIAL128 indicates that a serial number you are trying to assign to a Unique Item Identifier (UII) is already assigned to another UII. This typically occurs in the context of warehouse management and inventory processes where serial numbers are used to track individual items.
  Cause:
  
  Duplicate Assignment: The serial number you are trying to assign has already been assigned to a different UII in the system.
  Data Entry Error: There may have been a mistake in data entry, leading to the attempt to assign the same serial number to multiple items.
  System Configuration: The system may not be configured correctly to handle serial numbers, leading to conflicts.
  Integration Issues: If there are integrations with other systems (like external warehouse management systems), they may not be synchronized properly, causing duplicate serial number assignments.
  
  Solution:
  
  Check Serial Number Assignment: Verify the current assignment of the serial number in the system. You can do this by checking the serial number in the relevant transaction (e.g., using transaction code IQ03 for serial number display).
  Correct the Assignment: If the serial number is indeed assigned to another UII and you need to reassign it, you may need to unassign it from the current UII first, if business processes allow for this.
  Use a Different Serial Number: If the serial number is legitimately in use, consider using a different serial number for the new UII.
  Review System Configuration: Ensure that the system is configured correctly for handling serial numbers. This may involve checking settings in the Warehouse Management (WM) or Extended Warehouse Management (EWM) modules.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling serial numbers in your version of SAP.
  Contact Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support or your internal IT team for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IQ01 (Create Serial Number), IQ02 (Change Serial Number), and IQ03 (Display Serial Number).
  SAP Notes: Check for any SAP Notes related to serial number handling in your version of SAP, as there may be known issues or patches available.
  User Training: Ensure that users involved in inventory management are trained on proper serial number handling to minimize errors.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.