Message type: E = Error
Message class:  56 - HR TRAVEL: Messages for Trip Costs Dialog 
Message number: 743
Message text: No exchange rate setting from &1 to &2
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The SAP error message "56743 No exchange rate setting from &1 to &2" typically occurs when there is an attempt to convert currency from one currency to another, but the system cannot find a defined exchange rate for the specified currency pair. Here, &1 represents the source currency, and &2 represents the target currency.
Cause: Missing Exchange Rate: The primary cause of this error is that there is no exchange rate defined in the system for the currency pair you are trying to use. Incorrect Currency Configuration: The currencies involved may not be properly configured in the system. Date Issues: The exchange rate may not be valid for the date of the transaction. Exchange rates can be date-specific, and if the rate is not maintained for the date in question, this error can occur. Currency Type: The currency type being used may not have an exchange rate defined.
Solution: Maintain Exchange Rates: Go to the transaction code OB08
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