If your store is using Shopify Markets, then the conversion rates are controlled by Shopify. If your store is not using Shopify Markets, then your conversions rates are controlled elsewhere.
With Shopify Markets, Shopify allows you to manually change conversions rates only if you have the Advanced Shopify plan or Shopify Plus.
When using manual exchange rate conversions, you might gain or lose money depending on the difference between your manual exchange rate and the current market exchange rate.
A conversion fee applies to your currency conversion. If you want to include this fee in your manual rate, then multiply your rate by the conversion fee for your store’s country. For example, a USD to EUR exchange rate with a 1.5% conversion fee might look like this: 0.90867 x 1.015 = 0.9223.
You can set a manual conversion rate for markets listed in your Other markets section. These rates are based off of your store’s base currency in Settings > Store details, even for markets where you've set a base currency that's different from your store's currency.
Manual conversion rates can’t be applied to your primary market.
From your Markets page, you can set up manual conversion rates for single-country markets or multi-country markets with local currencies turned off. You should create single-country markets for every country or region that you want to use a manual conversion rate for.
- From your Shopify admin, go to Settings >Markets.
- In the Other markets section, click Manage next to the market where you want to add a manual exchange rate.
- In the Currency and pricing section, click Manage.
- Click Edit exchange rate.
- Select Use a manual rate.
- Enter the exchange rate.
- Click Save.