How To Fix NAA021 - Settlement document type &1 is not defined (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: NAA - Subsequent settlement (Purchasing)

• Message number: 021

• Message text: Settlement document type &1 is not defined (internal error)

What causes this issue?

Settlement document category &V1& cannot be processed.

System Response

The function is not performed.

How to fix this error?

Contact your system administrator. This is due to an internal program
error (function module &V2&).

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NAA021 - Settlement document type &1 is not defined (internal error) ?

  The SAP error message NAA021, which states "Settlement document type &1 is not defined (internal error)," typically occurs in the context of settlement processes in SAP, particularly when dealing with Asset Accounting or similar modules. This error indicates that the system is trying to process a settlement document type that has not been defined in the system configuration.
  Cause:
  
  Missing Configuration: The settlement document type referenced in the error message (&1) has not been defined in the system. This could be due to a configuration oversight during the setup of the Asset Accounting module or related processes.
  Incorrect Document Type: The document type being referenced may be incorrect or not applicable for the current transaction.
  Transport Issues: If the configuration was recently transported from another system, it may not have been properly imported or activated.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for Asset Accounting (Transaction code: SPRO).
  Navigate to Financial Accounting (New) > Asset Accounting > Integration > Define Settlement Document Types.
  Verify if the document type mentioned in the error message is defined. If it is not, you will need to create it.
  
  
  
  Create or Modify Document Type:
  
  If the document type is missing, create a new settlement document type with the necessary parameters.
  If it exists but is not configured correctly, modify it to ensure it meets the requirements for your settlement process.
  
  
  
  Check for Transport Issues:
  
  If the configuration was recently transported, check the transport logs to ensure that all necessary objects were transported successfully.
  If there are issues, you may need to re-transport the configuration or manually adjust it in the target system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for specific details on the settlement document types and their configurations.
  
  
  
  Testing:
  
  After making changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OAA3 (for defining settlement document types) and OAA4 (for assigning document types).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to access and modify the configuration settings.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or Functional team for further investigation.