How To Fix F0420 - Local currency amount &1 and invoice amount &2 are not the same

SAP Error Message - Details

• Message type: E = Error

• Message class: F0 - FI batch program messages

• Message number: 420

• Message text: Local currency amount &1 and invoice amount &2 are not the same

What causes this issue?

The local currency amount and invoice amount must be the same for
foreign payments which have the key '04' for the foreign currency
translation category because the invoice currency and payment currency
are both Japanese Yen (JPY).
The translation category key is stored in <DS:DE.DTAT18>instruction
field 3</> for the data medium exchange.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message F0420 - Local currency amount &1 and invoice amount &2 are not the same ?

  The SAP error message F0420 indicates a discrepancy between the local currency amount and the invoice amount in a financial transaction. This error typically arises during the posting of invoices or during the processing of financial documents where currency conversion is involved.
  Cause:
  
  Currency Conversion Issues: The local currency amount and the invoice amount may not match due to incorrect currency conversion rates or settings.
  Data Entry Errors: Manual entry errors can lead to mismatches between the amounts.
  Configuration Issues: Incorrect configuration in the financial settings or master data can lead to discrepancies.
  Document Type Settings: Certain document types may have specific rules regarding currency handling that could lead to this error.
  Rounding Differences: Rounding differences in currency conversion can also cause this error.
  
  Solution:
  
  Check Currency Settings: Verify that the currency settings in the document are correct. Ensure that the exchange rate used for conversion is accurate and up-to-date.
  Review Data Entry: Double-check the amounts entered in the invoice and ensure they are correct. Look for any typographical errors.
  Adjust Configuration: If the issue is due to configuration, review the settings in the financial module (e.g., transaction codes OB08 for exchange rates, OBA7 for document types).
  Use Correct Document Type: Ensure that the correct document type is being used for the transaction, as different types may have different currency handling rules.
  Rounding Adjustments: If rounding is causing the issue, consider adjusting the amounts to ensure they match or check the rounding settings in the system.
  Consult SAP Notes: Check for any relevant SAP Notes or updates that may address this specific error.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like FB60 (Enter Incoming Invoice) or FB70 (Enter Outgoing Invoice) to review and correct the entries.
  Exchange Rate Tables: Use transaction code OB08 to check and maintain exchange rates.
  SAP Support: If the issue persists, consider reaching out to SAP support or consulting the SAP community for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the F0420 error in SAP.