How To Fix 8B166 - Duplicated partner

SAP Error Message - Details

• Message type: E = Error

• Message class: 8B - Localization (Brazil)

• Message number: 166

• Message text: Duplicated partner

What causes this issue?

The same partner function has been assigned to two partners.

System Response

It is not possible to continue.

How to fix this error?

Please press the cancel button and/or choose a partner function that
has not yet been assigned to a partner on this screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 8B166 - Duplicated partner ?

  The SAP error message 8B166 - Duplicated partner typically occurs in the context of partner functions in SAP, particularly when dealing with business partner data. This error indicates that there is an attempt to create or assign a partner that already exists in the system, leading to a duplication issue.
  Cause:
  
  Duplicate Entry: The most common cause is that the partner (such as a vendor, customer, or other business partner) you are trying to create or assign already exists in the system.
  Incorrect Data Entry: There may be a mistake in the data entry, such as entering the same partner number or details that match an existing partner.
  Configuration Issues: There might be issues with the configuration of partner functions or the way partners are managed in the system.
  
  Solution:
  
  
  Check Existing Partners: Before creating a new partner, check the existing partners in the system to ensure that the partner you are trying to create does not already exist. You can do this by using transaction codes like BP (Business Partner) or XK03 (Display Vendor) or FD03 (Display Customer).
  
  
  Use Existing Partner: If the partner already exists, consider using the existing partner instead of creating a new one. You can assign the existing partner to the relevant transaction or document.
  
  
  Correct Data Entry: If you believe the partner should be unique, double-check the data you are entering for any typos or errors that might lead to a perceived duplication.
  
  
  Review Partner Functions: Ensure that the partner functions are correctly configured in the system. This may involve checking the settings in the relevant customizing transactions.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more detailed guidance on managing partners and resolving duplication issues.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP, XK03, FD03, and others that are used for managing business partners.
  SAP Notes: Check SAP Notes for any known issues or patches related to partner management that might address this error.
  Customizing Settings: Review the customizing settings for partner functions in the SAP system to ensure they are set up correctly.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.