How To Fix FKKBIX079 - Cannot determine unique business partner and contract account

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 079

• Message text: Cannot determine unique business partner and contract account

What causes this issue?

The following data was transferred:
External business partner number,,'&V3&'
Business partner number,,'&V4&'
External contract account number,,'&V1&'
Contract account number,,'&V2&'
The system could not find a unique, valid combination of business
partner and contract account.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBIX079 - Cannot determine unique business partner and contract account ?

  The SAP error message FKKBIX079, which states "Cannot determine unique business partner and contract account," typically occurs in the context of financial transactions, particularly when dealing with contract accounts and business partners in the SAP system. This error indicates that the system is unable to uniquely identify a business partner and its associated contract account based on the input provided.
  Causes:
  
  Multiple Entries: There may be multiple business partners or contract accounts that match the criteria provided in the transaction, leading to ambiguity.
  Data Inconsistency: There could be inconsistencies or missing data in the master data records for business partners or contract accounts.
  Incorrect Input: The input parameters (like business partner ID or contract account number) may be incorrect or incomplete.
  Configuration Issues: There might be issues with the configuration settings in the SAP system related to business partner and contract account mapping.
  
  Solutions:
  
  Check Input Data: Verify that the business partner ID and contract account number entered are correct and complete. Ensure that there are no typos or missing information.
  Review Master Data: Check the master data for business partners and contract accounts to ensure that they are correctly set up and that there are no duplicates or inconsistencies.
  
  Use transaction codes like BP (Business Partner) and FBL1N (Vendor Line Item Display) to review the data.
  
  
  Use Unique Identifiers: If there are multiple entries, try to use more specific identifiers or filters to narrow down the search to a unique business partner and contract account.
  Check Configuration: Review the configuration settings in the SAP system related to business partners and contract accounts. Ensure that the mapping and relationships are correctly defined.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP for managing business partners, FBL1N for vendor line items, and FK03 for displaying vendor master data.
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. You can search for notes in the SAP Support Portal.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to access the business partner and contract account data.
  
  By following these steps, you should be able to identify the cause of the FKKBIX079 error and implement a solution to resolve it.