How To Fix M8444 - Invoice reduction: No message was found for partner &1/company code &2

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 444

• Message text: Invoice reduction: No message was found for partner &1/company code &2

This message similar to messages M8 446-449

What causes this issue?

You reduced an invoice from invoicing party &V2& in company code &V1&
and want to post it. In order to inform your business partner, you want
to create a letter of complaint using message determination.

System Response

The system cannot generate a message. However, this is necessary for
issuing a letter of complaint. The invoice cannot be posted.

How to fix this error?

In Customizing for Invoice Verification, check that the data for message
determination has been maintained in such a way that an output message
can be created for the suppliers in the invoice document.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<DS:CHAP.SIMG_CFMENUOLMRNACH>Execute function</>
If you do not want to create a letter of complaint, you can switch off
this message in Customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8444 - Invoice reduction: No message was found for partner &1/company code &2 ?

  The SAP error message M8444, which states "Invoice reduction: No message was found for partner &1/company code &2," typically occurs in the context of invoice processing, particularly when dealing with invoice reductions or adjustments. This error indicates that the system could not find a corresponding message for the specified business partner and company code during the invoice reduction process.
  Cause:
  
  
  Missing Message Configuration: The most common cause of this error is that there is no message type configured for the specified partner and company code in the system. This could happen if the necessary message types for invoice reductions have not been set up in the system.
  
  
  Incorrect Partner or Company Code: The error may also arise if the partner or company code specified in the invoice does not match any existing configuration in the system.
  
  
  Custom Development Issues: If there are custom developments or enhancements in the invoice processing logic, they might not be handling the message determination correctly.
  
  
  Solution:
  
  
  Check Message Configuration:
  
  Go to the transaction code NACE (Message Control).
  Check the message types related to invoice reductions for the specific application area (e.g., MM for Materials Management).
  Ensure that the message type is correctly configured for the relevant partner and company code.
  
  
  
  Verify Partner and Company Code:
  
  Double-check the partner and company code in the invoice document to ensure they are correct and exist in the system.
  Ensure that the partner is properly set up in the vendor master data.
  
  
  
  Review Custom Code:
  
  If there are any custom developments related to invoice processing, review the code to ensure it correctly handles message determination.
  Check for any enhancements or user exits that might affect the message determination process.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to invoice reductions and message determination for any additional insights or updates.
  
  
  
  Testing:
  
  After making the necessary changes, test the invoice reduction process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: NACE (Message Control), ME23N (Display Purchase Order), MIRO (Invoice Verification).
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the M8444 error in SAP.