How To Fix T0878 - Calculated exch. rate &1 between &2 and &3 differs from fixed rate &4

SAP Error Message - Details

• Message type: E = Error

• Message class: T0 - General Treasury

• Message number: 878

• Message text: Calculated exch. rate &1 between &2 and &3 differs from fixed rate &4

What causes this issue?

An exchange rate type, for which rate fixing is intended, is used for
exchange rate &V2& / &V3&. The rate which the SAP R/3 System should
continue to use, however, deviates from this fixed rate.
INCLUDE 'CUSTOMIZED_MESSAGE_INFO' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message T0878 - Calculated exch. rate &1 between &2 and &3 differs from fixed rate &4 ?

  The SAP error message T0878 indicates a discrepancy between a calculated exchange rate and a fixed exchange rate defined in the system. This error typically arises during currency conversion processes, such as when posting transactions that involve different currencies.
  Cause:
  
  Exchange Rate Differences: The calculated exchange rate (based on the current exchange rate settings) does not match the fixed exchange rate that has been set for the specific currency pair.
  Configuration Issues: There may be issues with the configuration of exchange rates in the system, such as missing or incorrect entries in the exchange rate tables.
  Timing Issues: The exchange rate may have changed after the fixed rate was set, leading to discrepancies.
  Data Entry Errors: Incorrect data entry in transaction documents or master data can lead to mismatches in expected exchange rates.
  
  Solution:
  
  
  Check Exchange Rate Configuration:
  
  Go to the transaction code OB08 to review the exchange rates defined in the system.
  Ensure that the fixed exchange rate for the currency pair in question is correctly set up.
  
  
  
  Review Transaction Data:
  
  Check the transaction that triggered the error. Ensure that the currencies and amounts are entered correctly.
  Verify if the transaction date falls within the validity period of the exchange rates.
  
  
  
  Adjust Exchange Rates:
  
  If necessary, update the exchange rates in OB08 to reflect the current market rates or adjust the fixed rate to match the calculated rate.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any specific notes related to exchange rate handling in your version of SAP.
  
  
  
  Testing:
  
  After making adjustments, test the transaction again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  OB08: Maintain exchange rates.
  FB01: Post document (to test the transaction).
  
  
  Exchange Rate Types: Ensure you are using the correct exchange rate type (e.g., M for average rate, G for historical rate).
  Currency Settings: Check the currency settings in the company code and ensure they are correctly configured.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to exchange rates and this error message.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP's support portal for further assistance.