How do I add the required currency?
Popular currencies are already in the yfifx by default and can be updated (can be turned on, can be turned off) automatically before each price recalculation:
If you have prices in a currency that is not available in the basic version of the service, then you can easily add the required currency yourself. For example, let’s add a currency — Turkish lira. To do this, select the menu Configurations— Currencies — Add new currency. We register the name of the currency, the multiplier(, and click Save.
There is a default currency for each price list. This is the currency that will be assigned to the product if a specific currency is not loaded from the price list. This currency is set here: 
When the function of updating prices and quantities is launched, all prices are converted into the currency of the main price list at the exchange rates.