How To Fix WP422 - FI transaction type & cannot be converted

WP422 - Overview

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 422

• Message text: FI transaction type & cannot be converted

What causes this issue?

Transaction type & cannot be converted for Financial Accounting.

System Response

The transaction cannot be processed.

How to fix this error?

<DS:SIMG.W_DF_VK_0120.SIMG_OPOS>Maintain the conversion rule for the
transaction type</>.

Error message extract from SAP system. Copyright SAP SE.

WP422 - Details

• The SAP error message WP422: FI transaction type & cannot be converted typically occurs during financial document processing, especially when dealing with payment transactions or clearing operations.
  
  
  Cause:
  The error indicates that the specified FI transaction type (Financial Accounting transaction type) cannot be converted or processed in the current context. This usually happens because:
  
  The transaction type used in the document or process is not valid or recognized for the operation being performed.
  The transaction type is missing or incorrectly configured in the system.
  There is a mismatch between the transaction type and the document type or posting key.
  The system is trying to convert or map a transaction type that is not allowed or does not exist in the customizing settings.
  
  
  Common Scenarios:
  
  During payment processing or clearing, the system tries to convert a transaction type that is not maintained in the customizing.
  When posting documents, the transaction type assigned to line items is not compatible with the