When an order goes into production, it is automatically billed to you.
TPOP will bill you in euros (EUR), regardless of the currency set on your site.
However, by going to your TPOP preferences, you have the option to change the currency in which you want to see prices appear in your TPOP space.
When you change the currency, the pricing of the app's products is automatically recalculated based on the exchange rate between your currency and the EUR.
Info: please note that we have no means to change the currency on your store. You need to go to its preferences (in Shopify / Etsy or WooCommerce) and set the currency of your choice.
When your order goes into production, it will be billed to you in EUR, using the exchange rate on the day it goes into production.