How To Fix M8021 - Document type & not defined for invoice verification

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 021

• Message text: Document type & not defined for invoice verification

What causes this issue?

The error message can have the following two causes:
No document type has been configured in Customizing for transaction
&V2& that you are executing.
You have entered a document type that has not been defined for Invoice
Verification.

How to fix this error?

Check the Customizing setting in 'Document types: invoice verification'
(<DS:TRAN.OMR4>Proceed</>), or change the document type.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8021 - Document type & not defined for invoice verification ?

  The SAP error message M8021, which states "Document type & not defined for invoice verification," typically occurs during the invoice verification process in the Materials Management (MM) module. This error indicates that the document type being used for the invoice is not configured correctly in the system for the invoice verification process.
  Cause:
  
  Missing Configuration: The document type used for the invoice (e.g., standard invoice, credit memo) is not defined in the system for invoice verification.
  Incorrect Document Type: The document type may be incorrectly specified in the invoice or may not be applicable for the transaction being performed.
  Authorization Issues: The user may not have the necessary authorizations to process the specific document type.
  
  Solution:
  To resolve the M8021 error, you can follow these steps:
  
  
  Check Document Type Configuration:
  
  Go to the SAP transaction code SPRO (Customizing).
  Navigate to Materials Management > Logistics Invoice Verification > Define Document Types for Invoice Verification.
  Ensure that the document type in question is defined and configured correctly for invoice verification.
  
  
  
  Define New Document Type (if necessary):
  
  If the document type is not defined, you may need to create a new document type.
  Ensure that you set the necessary parameters and assign it to the appropriate company code and purchasing organization.
  
  
  
  Check Invoice Document:
  
  Verify the invoice document you are trying to process. Ensure that the document type is correct and corresponds to the type of invoice you are trying to post.
  
  
  
  User Authorizations:
  
  Check if the user has the necessary authorizations to process the invoice with the specified document type. This can be done by reviewing the user's roles and authorizations in the system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for any specific configurations or settings that may be required for your organization.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  MIRO: Invoice Verification
  SPRO: Customizing settings
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to document types and invoice verification.
  User Roles: Ensure that the user roles are correctly assigned to allow for invoice processing.
  
  By following these steps, you should be able to identify and resolve the issue causing the M8021 error in SAP. If the problem persists, it may be beneficial to consult with your SAP support team or a functional consultant for further assistance.