How To Fix MN771 - Supplier billing document type &1 not defined or faulty

MN771 - Overview

• Message type: E = Error

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

• Message number: 771

• Message text: Supplier billing document type &1 not defined or faulty

What causes this issue?

Billing document type &V1& des not exist or is not permitted for
subsequent settlement.
Document type &V1& is assigned to arrangement type &V2& (subsequent
settlement) for partial or final settlement.
You can find the exact cause of the error in the message for a rebate
arrangement that has already been processed.

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?

Check the Customizing settings.

<DS:SIMG.W_WLFA_0004>Define billing document types</>
<DS:SIMG.SIMG_CFMENUOLMEOMHD>Define rebate arrangement types for
subsequent settlement</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

MN771 - Details

• The SAP error message MN771 indicates that there is an issue with the supplier billing document type specified in the system. This error typically arises when the document type is either not defined in the system or is incorrectly configured. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Undefined Document Type: The specified supplier billing document type (e.g., invoice, credit memo) does not exist in the system.
  Faulty Configuration: The document type may exist but is not properly configured, leading to issues when trying to process transactions.
  Authorization Issues: The user may not have the necessary authorizations to access or create documents of the specified type.
  Custom Document Types: If custom document types are used, they may not be set up correctly in the system.
  
  
  Solution:
  
  
  Check Document Type Configuration:
  
  Go to the configuration settings in SAP (Transaction Code: SPRO).
  Navigate to Logistics > Materials Management > Purchasing > Invoice Verification > Define Document Types.
  Verify