How To Fix MN421 - Value & of "Rebate settlement" field for billing doc. type & not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 421

• Message text: Value & of "Rebate settlement" field for billing doc. type & not allowed

What causes this issue?

Billing document type &V2& is assigned to arrangement type &V4&
("subsequent settlement") via sales document type &V3& of arrangement
type &V4& for partial or final settlement. The indicator controls
whether a customer billing document type &V2& is permitted for partial
or full settlement.
Indicator &V1& is not permitted.

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 one of the following options:
Maintain the field <LS>Rebate settlement</> for billing document type
&V2&, or
Assign a suitable sales and billing document type to arrangement type
&V4&.
Note that you can store a sales document type and thus a billing
document type under the arrangement type both for partial and interim
settlements as well as for final settlements.
If the billing document type is used for final settlements, set the
<LS>Rebate settlement</> field to the value "A". If it is used for
partial or interim settlements, set it to "C".
INCLUDE 'NA_CUST_MAINTAIN' OBJECT DOKU ID TX

<DS:SIMG.SIMG_CFMENUOLSDVOFA>Define billing document types</>
<DS:SIMG.SIMG_CFMENUOLSDVOV8>Define sales document types</>
<DS:SIMG.SIMG_CFMENUOLMEOMHD>Define rebate arrangement types for
subsequent settlement</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN421 - Value & of "Rebate settlement" field for billing doc. type & not allowed ?

  The SAP error message MN421 indicates that there is an issue with the "Rebate settlement" field for a specific billing document type. This error typically arises when the system encounters a value in the rebate settlement field that is not permitted for the specified billing document type.
  Cause:
  
  Incorrect Configuration: The billing document type may not be configured to allow rebate settlements. This can happen if the settings in the SAP system do not align with the business processes or if the document type is not set up to handle rebates.
  Invalid Value: The value entered in the "Rebate settlement" field may not be valid for the specific billing document type. This could be due to a typo or an incorrect selection from a dropdown.
  Missing Authorizations: The user may not have the necessary authorizations to perform rebate settlements for the specified billing document type.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for billing document types in SAP (Transaction Code: SPRO).
  Navigate to Sales and Distribution > Billing > Billing Document > Define Billing Document Types.
  Ensure that the billing document type in question is configured to allow rebate settlements.
  
  
  
  Validate Input:
  
  Review the value entered in the "Rebate settlement" field. Ensure that it is a valid option for the billing document type you are using.
  If necessary, consult the documentation or help files to understand the valid values for the rebate settlement field.
  
  
  
  User Authorizations:
  
  Check the user roles and authorizations to ensure that the user has the necessary permissions to perform rebate settlements.
  If needed, contact your SAP security administrator to review and adjust the user roles.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to rebate settlements and billing document types for additional insights and best practices.
  
  
  
  Testing:
  
  After making any changes, perform a test to ensure that the error no longer occurs when processing the billing document.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as VF01 (Create Billing Document), VF02 (Change Billing Document), and VF03 (Display Billing Document) to troubleshoot and test the billing process.
  SAP Notes: Check for any SAP Notes related to this error message in the SAP Support Portal, as there may be specific patches or updates that address known issues.
  Community Forums: Engage with SAP community forums or user groups for additional insights and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the MN421 error and implement a solution to resolve it.