How To Fix FKKINV599 - Name &1 for the charge/discount key is already assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 599

• Message text: Name &1 for the charge/discount key is already assigned

What causes this issue?

The name you entered for the charge/discount key (&V1&) is already being
use as a key for a <DS:DE.DISCKEY_KK>discount/charge on billable items
</>.

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?

Choose another name for the charge/discount key.

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 FKKINV599 - Name &1 for the charge/discount key is already assigned ?

  The SAP error message FKKINV599 indicates that there is an issue with the charge or discount key that you are trying to assign in the context of invoicing or billing in the SAP system. Specifically, the message states that the name (or identifier) for the charge/discount key is already assigned to another object, which prevents you from using it for the current transaction.
  Cause:
  
  Duplicate Assignment: The charge/discount key you are trying to use is already assigned to another billing document, customer, or contract.
  Configuration Issues: There may be configuration settings in the SAP system that restrict the use of certain charge/discount keys.
  Data Integrity: There might be data integrity issues in the database where the charge/discount key is incorrectly linked to multiple objects.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction codes like FKKINV or FBL5N to check where the charge/discount key is currently assigned. Look for any existing invoices or contracts that may be using the same key.
  
  
  
  Change the Key: 
  
  If the charge/discount key is indeed in use, consider using a different key that is not currently assigned to any other object.
  
  
  
  Review Configuration: 
  
  Check the configuration settings in the SAP system related to charge/discount keys. Ensure that the settings allow for the intended use of the keys.
  
  
  
  Data Cleanup: 
  
  If you suspect data integrity issues, you may need to perform a cleanup of the database or consult with your SAP Basis team to resolve any inconsistencies.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help notes related to charge/discount keys for any specific guidelines or restrictions.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FKKINV (for invoicing) and FBL5N (for customer line items) to investigate the issue further.
  SAP Notes: Search for SAP Notes related to FKKINV599 for any patches or updates that may address this specific error.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to charge/discount keys in the system.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.