Selling in multiple currencies
To sell in multiple currencies, you need to have Shopify Payments enabled in your online store. When you enable multiple currencies, your customers can pay for their orders and receive refunds in their local currency. Your prices are converted based on the foreign exchange rate, which is set automatically by default based on market rates, but you can choose to set the foreign exchange rate manually.
For more information, refer to Sell in multiple currencies with Shopify Payments.