How To Fix NAA051 - Item &2 of supplier billing document &1 does not have an input tax code

SAP Error Message - Details

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 051

• Message text: Item &2 of supplier billing document &1 does not have an input tax code

What causes this issue?

Item &V2& of supplier billing document &V1& does not have an input tax
code. Updating of business volumes in subsequent settlement is not
possible without an input tax code.

System Response

Business volumes cannot be updated.

How to fix this error?

This situation should never arise.
INCLUDE ISR_SYSTEMFEHLER OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NAA051 - Item &2 of supplier billing document &1 does not have an input tax code ?

  The SAP error message NAA051 indicates that there is an issue with the input tax code for a specific item in a supplier billing document. This error typically arises when the system expects an input tax code to be assigned to an item, but it is missing. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Input Tax Code: The item in the supplier billing document does not have an input tax code assigned. This can happen if the tax code was not specified during the creation of the billing document or if the item is not configured correctly in the system.
  Configuration Issues: The tax configuration in the system may not be set up correctly, leading to the absence of a valid input tax code for the item.
  Document Type Settings: The document type used for the supplier billing may not be configured to allow for input tax codes.
  Item Category: The item category may not be set up to handle tax codes properly.
  
  Solution:
  
  Check Item Details: Go to the supplier billing document and check the item details. Ensure that an appropriate input tax code is assigned to the item.
  Assign Input Tax Code: If the input tax code is missing, you can manually assign a valid input tax code to the item in the billing document.
  Review Tax Configuration: Check the tax configuration in the system (transaction codes like OB40 for tax codes) to ensure that the necessary tax codes are defined and active.
  Document Type Configuration: Verify the configuration of the document type used for the supplier billing. Ensure that it is set up to allow input tax codes.
  Item Category Settings: Review the settings for the item category in the material master or purchasing info record to ensure it is configured to handle tax codes.
  Consult with Finance Team: If you are unsure about which tax code to use, consult with your finance or accounting team to determine the correct input tax code based on your company's tax policies.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  FB60: Enter Incoming Invoices
  MIRO: Enter Incoming Invoice
  OB40: Maintain Tax Codes
  
  
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address the issue.
  Documentation: Review SAP documentation or help files related to tax configuration and supplier billing processes for more detailed instructions.
  
  By following these steps, you should be able to resolve the NAA051 error and ensure that your supplier billing documents are processed correctly.