Importing Transactions with Multiple Currencies in QuickBooks
QuickBooks Online supports multiple currencies while creating transactions. If you want to turn on Multi Currency Feature in QuickBooks Online using SaasAnt Transactions (Online), please refer to the below article.
Currency Exchange Rate
SaasAnt Transactions (Online) automatically fetches the Exchange Rate based on your Transaction Date ( Invoice Date, Payment Date, Bill Date & etc).
If you want to override the exchange rate, just add one more column named "Exchange Rate" and provide expected value.