How To Fix FKKEXC313 - Assignment to internal branch &1 and cash desk &2 already exists

FKKEXC313 - Overview

• Message type: E = Error

• Message class: FKKEXC - Message Class for External Payments

• Message number: 313

• Message text: Assignment to internal branch &1 and cash desk &2 already exists

What causes this issue?

The system already contains an assignment to the internal branch &V1&
and cash desk &V2&.

System Response

The assignment of an external ID to an internal ID for the branch and
cash desk cannot be transferred.

How to fix this error?

Change the assignment such that the assignment of the external ID to the
internal ID for the branch and cash desk is unique in each case.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

FKKEXC313 - Details

• The SAP error message FKKEXC313 indicates that there is an attempt to assign a specific internal branch and cash desk combination that already exists in the system. This error typically arises in the context of financial transactions, particularly in the Contract Accounts Receivable and Payable (FI-CA) module.
  
  Cause:
  The error occurs when:
  
  You are trying to create or modify an assignment for an internal branch and cash desk that has already been assigned in the system.
  There may be duplicate entries in the configuration or master data that need to be resolved.
  The system is enforcing unique constraints on the combination of internal branch and cash desk.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Navigate to the relevant configuration or master data tables to check if the internal branch and cash desk combination already exists.
  Use transaction codes like OBYC or FKKOP to view the existing assignments.
  
  
  
  Modify or Delete Duplicate Entries:
  
  If you find