How To Fix /SMB/CUSTOMIZING009 - Assignment between BC Set &1 and Customizing Object is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/CUSTOMIZING -

• Message number: 009

• Message text: Assignment between BC Set &1 and Customizing Object is not unique

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 /SMB/CUSTOMIZING009 - Assignment between BC Set &1 and Customizing Object is not unique ?

  The SAP error message /SMB/CUSTOMIZING009 Assignment between BC Set &1 and Customizing Object is not unique typically occurs when there is a conflict in the assignment of a Business Configuration (BC) Set to a Customizing Object. This can happen when multiple BC Sets are trying to assign the same Customizing Object, leading to ambiguity in the system.
  Cause:
  
  Duplicate Assignments: The same Customizing Object is assigned to multiple BC Sets, which creates a conflict.
  Incorrect Configuration: There may be an error in the configuration where the same object is unintentionally linked to more than one BC Set.
  Transport Issues: If BC Sets were transported from one system to another, it might lead to inconsistencies in assignments.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Conflicting Assignments:
  
  Use transaction code SIMG or SPRO to navigate to the relevant BC Set and check the assignments.
  Look for the Customizing Object that is causing the conflict and identify all BC Sets that are linked to it.
  
  
  
  Remove Duplicate Assignments:
  
  If you find that multiple BC Sets are assigned to the same Customizing Object, decide which assignment is necessary and remove the others.
  You can do this by editing the BC Set in the transaction SIMG or using the relevant customizing transaction.
  
  
  
  Check Transport Requests:
  
  If the issue arose after a transport, check the transport requests to ensure that they did not introduce duplicate assignments.
  If necessary, revert the transport or adjust the assignments in the target system.
  
  
  
  Consult Documentation:
  
  Review the documentation for the specific BC Set and Customizing Object to ensure that you are following the intended configuration guidelines.
  
  
  
  Testing:
  
  After making changes, test the configuration to ensure that the error is resolved and that the system behaves as expected.
  
  
  
  Related Information:
  
  BC Sets: Business Configuration Sets are used in SAP to manage and transport configuration settings. They allow for easier management of settings across different systems.
  Customizing Objects: These are the various settings and configurations that can be adjusted in SAP to tailor the system to specific business needs.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling BC Sets and Customizing Objects.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific system configuration.