How To Fix VFKK120 - Billing type of reversal &1 or original &2 not of type billing request

SAP Error Message - Details

• Message type: E = Error

• Message class: VFKK -

• Message number: 120

• Message text: Billing type of reversal &1 or original &2 not of type billing request

What causes this issue?

The <DS:DE.FKART>billing type</> &V2& and the assigned reversal billing
type &V1& both have to be from the <DS:DE.FKTYP>billing category</> <LS>
billing request</> (U).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VFKK120 - Billing type of reversal &1 or original &2 not of type billing request ?

  The SAP error message VFKK120 indicates that there is an issue with the billing types involved in a reversal or original billing document. Specifically, it suggests that the billing type of the reversal document (denoted as &1) or the original document (denoted as &2) is not of the type "billing request." This can occur in scenarios where you are trying to reverse a billing document that does not meet the necessary criteria for reversal.
  Cause:
  
  Incorrect Billing Type: The original billing document or the reversal document is not of the expected billing type. For example, if the original document is a credit memo or an invoice, and you are trying to reverse it with a billing request type, this error will occur.
  Configuration Issues: The billing types may not be configured correctly in the system, leading to mismatches in expected document types.
  Document Status: The original document may be in a status that does not allow for reversal, or it may have already been reversed.
  
  Solution:
  
  Check Billing Types: Verify the billing types of both the original and reversal documents. Ensure that they are compatible and that the original document is indeed a billing request type.
  Review Configuration: If the billing types are incorrect, review the configuration settings in the SAP system. You may need to adjust the billing type settings in the configuration to ensure that they align with the expected types for reversals.
  Document Status: Check the status of the original document. If it has already been reversed or is in a status that does not allow for further processing, you may need to take appropriate actions to resolve this.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on billing types and their configurations. This can provide insights into how to properly set up and manage billing documents.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like VF01 (Create Billing Document), VF02 (Change Billing Document), and VF03 (Display Billing Document) to review the documents in question.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  User Authorization: Ensure that you have the necessary authorizations to perform billing document reversals, as lack of permissions can also lead to errors.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in billing processes within SAP.