How To Fix MPE_RTG_UI258 - BOM Item &1 reference designators are not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_RTG_UI - Messages for Routing Maintenance

• Message number: 258

• Message text: BOM Item &1 reference designators are not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_RTG_UI258 - BOM Item &1 reference designators are not unique ?

  The SAP error message MPE_RTG_UI258 indicates that there is an issue with the Bill of Materials (BOM) in which the reference designators for the specified BOM item are not unique. This can occur in scenarios where multiple components or items in the BOM are assigned the same reference designator, which is not allowed as it can lead to confusion in manufacturing and assembly processes.
  Cause:
  
  Duplicate Reference Designators: The most common cause of this error is that two or more components in the BOM have been assigned the same reference designator.
  Data Entry Errors: During the creation or modification of the BOM, there may have been a mistake in entering the reference designators.
  System Configuration Issues: In some cases, system settings or configurations may lead to improper handling of reference designators.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the BOM Item: Check the BOM item mentioned in the error message. You can do this by navigating to the BOM in the SAP system.
  
  
  Review Reference Designators: Open the BOM and review the reference designators assigned to each component. Look for duplicates.
  
  
  Correct Duplicates: If you find duplicate reference designators, you will need to change them to ensure that each component has a unique reference designator. This may involve:
  
  Renaming the reference designators.
  Reassigning components to different designators.
  
  
  
  Save Changes: After making the necessary changes, save the BOM and check if the error persists.
  
  
  Testing: After correcting the BOM, perform a test to ensure that the changes have resolved the issue and that the BOM can be processed without errors.
  
  
  Related Information:
  
  BOM Structure: Understanding the structure of a BOM and the importance of unique reference designators is crucial for effective manufacturing processes.
  SAP Documentation: Refer to SAP Help documentation for more details on BOM management and error handling.
  User Roles: Ensure that users who are responsible for BOM creation and maintenance are trained on the importance of unique reference designators.
  System Configuration: If the issue persists, it may be beneficial to consult with your SAP Basis or technical team to check for any underlying configuration issues.
  
  By following these steps, you should be able to resolve the MPE_RTG_UI258 error and ensure that your BOM is correctly configured.