How To Fix BOM605 - Assembly & exists in structure several times, first occurance selected

SAP Error Message - Details

• Message type: E = Error

• Message class: BOM - BOMs (2)

• Message number: 605

• Message text: Assembly & exists in structure several times, first occurance selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BOM605 - Assembly & exists in structure several times, first occurance selected ?

  The SAP error message BOM605 ("Assembly & exists in structure several times, first occurrence selected") typically occurs when you are trying to create or modify a Bill of Materials (BOM) in SAP, and the system detects that the same assembly or component is included multiple times in the BOM structure.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the same component or assembly has been added multiple times to the BOM. This can happen due to manual entry errors or during the import of BOM data.
  Incorrect BOM Structure: If the BOM structure is not correctly defined, it may lead to the same assembly being referenced multiple times.
  Data Integrity Issues: There may be issues with the data integrity in the BOM, such as incorrect references or links.
  
  Solution:
  
  Check BOM Structure: Review the BOM structure to identify any duplicate entries. You can do this by navigating to the BOM in the SAP GUI and checking the components listed.
  Remove Duplicates: If you find that the same assembly is listed multiple times, remove the duplicates. Ensure that each component is only listed once in the BOM.
  Use Transaction Codes: You can use transaction codes like CS02 (Change BOM) or CS03 (Display BOM) to view and edit the BOM.
  Validate Data: After making changes, validate the BOM to ensure that it meets the required structure and does not contain any duplicates.
  Consult Documentation: If you are unsure about the correct structure of the BOM, refer to SAP documentation or guidelines for creating BOMs.
  
  Related Information:
  
  BOM Types: Understand the different types of BOMs (e.g., single-level, multi-level) and how they should be structured.
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM management that might address this error.
  User Permissions: Ensure that you have the necessary permissions to modify BOMs in SAP, as restrictions can sometimes lead to unexpected behavior.
  Training: If you frequently encounter issues with BOMs, consider additional training on SAP BOM management to better understand the system's requirements and best practices.
  
  By following these steps, you should be able to resolve the BOM605 error and ensure that your BOMs are correctly structured without duplicate entries.