ScaleXP uses exactly the same FX rates as the accounting system for all invoices and bills. As an example, if Demo Company USA issues an invoice in Euros, ScaleXP will use the same FX rate in the accounting system for this customer and invoice.   The result is that ScaleXP will match the accounting system exactly, when financials are viewed in the home currency. The FX gains and losses on specific invoices are tracked by the accounting system, and ScaleXP monitors and imports this data.  To read more about how the system handles FX gains, this article is helpful.