How To Fix NAA128 - Cust. billing type &1 is not of category 'Debit memo' (supplier arrang.)

NAA128 - Overview

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 128

• Message text: Cust. billing type &1 is not of category 'Debit memo' (supplier arrang.)

What causes this issue?

Customer billing type &V1& does not have sales document category 'P'
(debit memo).
However, arrangement type &V2& is used for subsequent settlement with
suppliers (settlement partner is a supplier). During settlement
accounting, a debit memo is usually created in this case.

System Response

You can make this assignment (warning message only).

How to fix this error?

INCLUDE ISR_CHECK

Procedure for System Administrators

Customer billing types BM1 and BM3 are defined in the standard system.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NAA128 - Cust. billing type &1 is not of category 'Debit memo' (supplier arrang.) ?

  The SAP error message NAA128 indicates that the customer billing type you are trying to use is not categorized as a "Debit Memo" for supplier arrangements. This error typically arises in scenarios involving billing documents, particularly when dealing with customer billing types that are expected to be linked to specific transaction types.
  
  Cause:
  
  Incorrect Billing Type: The billing type you are using does not belong to the category of "Debit Memo" as defined in the system configuration.
  
  Configuration Issues: The billing type may not be properly configured in the system to be recognized as a debit memo.
  Transaction Type Mismatch: The transaction you are attempting to execute may require a specific billing type that is not being met by the one you are using.
  
  
  Solution:
  
  
  Check Billing Type Configuration:
  
  Go to the configuration settings in SAP (Transaction code: SPRO).
  Navigate to Sales and Distribution > Billing > Billing Types.
  Verify that the billing type you are using is correctly