How To Fix DMU354 - &1 &2 has already been separated in a BOM

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 354

• Message text: &1 &2 has already been separated in a BOM

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU354 - &1 &2 has already been separated in a BOM ?

  The SAP error message DMU354 indicates that a specific component (or item) in a Bill of Materials (BOM) has already been separated or disassociated from the BOM structure. This typically occurs when you are trying to perform an operation that involves modifying the BOM, such as adding or changing components, but the system recognizes that the component in question has already been processed in a way that prevents further modifications.
  Cause:
  
  Component Already Separated: The component you are trying to modify or add has already been separated from the BOM in a previous operation.
  Incorrect BOM Status: The BOM may be in a status that does not allow further modifications.
  User Error: The user may be attempting to perform an operation that is not valid for the current state of the BOM.
  
  Solution:
  
  Check BOM Status: Verify the status of the BOM to ensure it is in a state that allows modifications. You may need to change the status or unlock the BOM if it is locked.
  Review Changes: Look at the change history of the BOM to confirm that the component has indeed been separated. If it has been separated, you may need to re-add it if necessary.
  Recreate the Component: If the component needs to be added back to the BOM, you may need to create a new entry for it.
  Consult Documentation: Refer to SAP documentation or help resources for specific instructions on handling BOM modifications.
  Contact Support: If the issue persists and you cannot determine the cause, consider reaching out to your SAP support team for assistance.
  
  Related Information:
  
  BOM Management: Understanding how BOMs are structured and managed in SAP can help prevent such errors. Familiarize yourself with the transaction codes related to BOM maintenance (e.g., CS01, CS02, CS03).
  Change Management: Implementing proper change management practices can help track modifications to BOMs and prevent conflicts.
  User Training: Ensure that users involved in BOM management are adequately trained to avoid common pitfalls that lead to errors.
  
  By following these steps, you should be able to resolve the DMU354 error and successfully manage your BOMs in SAP.