How To Fix WP409 - Payment type & cannot be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 409

• Message text: Payment type & cannot be converted

What causes this issue?

The conversion rule for payment method &V1& is unknown.

System Response

The relevant record cannot not be prepared in POS - interface outbound
processing. The relevant document cannot be posted in the SAP system in
POS - interface inbound processing.

How to fix this error?

<DS:SIMG.W_DF_VK_0123.SIMG_OPOS>Define a conversion rule for the
payment method </>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WP409 - Payment type & cannot be converted ?

  The SAP error message WP409: Payment type & cannot be converted typically occurs in the context of payment processing, especially when dealing with payment medium formats or payment transactions in Financial Accounting (FI) or Treasury modules.
  
  Cause
  
  The error indicates that the specified payment type (e.g., check, bank transfer, direct debit) cannot be converted or mapped to the required format or payment method during the payment run or payment medium generation.
  This usually happens because:
  
  The payment type is not maintained or configured correctly in the system.
  The payment method assigned to the vendor/customer or company code does not support the conversion.
  Missing or incorrect configuration in the payment program customizing (transaction FBZP).
  The payment medium format or conversion rules do not recognize the payment type.
  The payment type is not supported by the selected payment medium format.
  
  
  
  
  Solution
  
  
  Check Payment Method Configuration:
  
  Go to transaction FBZP (Maintain Payment Program).
  Verify the payment methods assigned to the company code and vendor/customer.
  Ensure the payment method is correctly configured under:
  
  Payment Methods in Country
  Payment Methods per Company Code
  Payment Medium Formats
  
  
  
  
  
  Verify Payment Medium Format:
  
  Check the payment medium format assigned to the payment method.
  Ensure the format supports the payment type you are trying to use.
  If necessary, adjust or create a new payment medium format that supports the payment type.
  
  
  
  Check Vendor/Customer Master Data:
  
  Verify the payment method assigned in the vendor/customer master record.
  Ensure the payment method is valid and consistent with the payment program configuration.
  
  
  
  Review Conversion Rules:
  
  If custom conversion rules or user exits are used, check if they handle the payment type correctly.
  Debug or review the conversion logic if necessary.
  
  
  
  Update or Maintain Payment Types:
  
  If the payment type is missing or incorrect, maintain it in the customizing.
  Sometimes, you may need to add or adjust payment types in the system tables or customizing.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  FBZP – Maintain Payment Program
  F110 – Automatic Payment Transactions
  OBPM1 – Define Payment Methods per Country
  OBPM2 – Define Payment Methods per Company Code
  
  
  
  SAP Notes:
  
  Check SAP Notes related to payment medium errors or payment type issues.
  Example: SAP Note 123456 (hypothetical) might address specific payment type conversion problems.
  
  
  
  Payment Medium Workbench (PMW):
  
  If using PMW, verify the format and conversion rules in the PMW customizing.
  
  
  
  Debugging:
  
  If the error persists, debugging the payment medium generation program (e.g., RFFOUS_C or custom programs) can help identify where the conversion fails.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WP409 Payment type & cannot be converted
  
  
  Cause
  Payment type not configured or supported in payment program or payment medium format
  
  
  Solution
  Check and correct payment method configuration in FBZP, verify payment medium format, vendor/customer master data, and conversion rules
  
  
  Related Transactions
  FBZP, F110, OBPM1, OBPM2
  
  
  Additional Info
  Review SAP Notes, Payment Medium Workbench settings, and debug if necessary
  
  
  
  
  If you provide the exact payment type or scenario, I can help you with more specific steps or configuration details.