How To Fix FKKBIX107 - External partner number &1 is assigned more than once

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 107

• Message text: External partner number &1 is assigned more than once

What causes this issue?

The external business partner reference

(BPEXT)

<(>&<)>1 has been assigned several times.

System Response

The system cannot uniquely assign an SAP business partner.

How to fix this error?

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

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 FKKBIX107 - External partner number &1 is assigned more than once ?

  The SAP error message FKKBIX107 indicates that an external partner number (such as a vendor or customer number) is assigned more than once in the system. This typically occurs in the context of financial accounting or accounts receivable/payable when there are duplicate entries for the same external partner.
  
  Cause:
  
  Duplicate Entries: The most common cause is that the same external partner number has been entered multiple times in the system, either in the vendor or customer master data.
  Data Migration Issues: If data has been migrated from another system, it’s possible that duplicates were created during the migration process.
  Incorrect Configuration: There may be configuration settings that allow for duplicate entries, or the system may not be enforcing uniqueness properly.
  
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to query the relevant tables (e.g., LFA1 for vendors, KNA1 for customers) to find duplicate entries for the external partner number in question.
  Delete or Merge Duplicates: