How To Fix LF_SER023 - Serial number & is not unique; choose Det and scan per delivery item

SAP Error Message - Details

• Message type: E = Error

• Message class: LF_SER -

• Message number: 023

• Message text: Serial number & is not unique; choose Det and scan per delivery item

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 LF_SER023 - Serial number & is not unique; choose Det and scan per delivery item ?

  The SAP error message LF_SER023 indicates that the serial number you are trying to use is not unique for the specified delivery item. This typically occurs during the process of goods movement, such as when you are trying to post a goods issue or perform a delivery that involves serial number tracking.
  Cause:
  
  Duplicate Serial Numbers: The serial number you are trying to enter has already been assigned to another item in the same delivery or in the same context where uniqueness is required.
  Incorrect Delivery Item: The serial number may be valid but is not associated with the delivery item you are trying to process.
  Configuration Issues: There may be issues with the configuration of serial number management in your SAP system.
  
  Solution:
  
  
  Check Serial Number Assignment:
  
  Verify that the serial number you are trying to use is indeed unique for the delivery item. You can do this by checking the serial number assignment in the system.
  Use transaction codes like IQ03 (Display Serial Number) to check the status of the serial number.
  
  
  
  Select the Correct Delivery Item:
  
  Ensure that you are selecting the correct delivery item that corresponds to the serial number you are trying to use. If the serial number is associated with a different item, you will need to select the correct one.
  
  
  
  Use the 'Det' Option:
  
  The error message suggests using the 'Det' (Detail) option. This allows you to see the details of the serial number assignment and may help you identify any discrepancies.
  
  
  
  Review Configuration:
  
  If the issue persists, review the configuration settings for serial number management in your SAP system. Ensure that the settings align with your business processes and that there are no restrictions that could cause this error.
  
  
  
  Consult Documentation or Support:
  
  If you are unable to resolve the issue, consult SAP documentation or reach out to your SAP support team for further assistance. They may have additional insights or solutions based on your specific system configuration.
  
  
  
  Related Information:
  
  Serial Number Management: Understand how serial numbers are managed in your SAP system, including how they are assigned and tracked.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IQ01 (Create Serial Number), IQ02 (Change Serial Number), and IQ03 (Display Serial Number).
  User Roles and Authorizations: Ensure that you have the necessary permissions to perform actions related to serial number management.
  
  By following these steps, you should be able to identify the cause of the LF_SER023 error and take appropriate action to resolve it.