How does the schema show different currencies other than USD?

If you enable the USD feature in your store, Google crawlers will show your products in USD even though your store is not a US store and is located somewhere else in the world. Schema will always show USD in that case, despite you selling in Europe for example, and using EUR. We suggest customers disable USD. Schema will show the correct currency if the USD is not enabled.

Unfortunately, schema is able to read one currency at a time. So for you to have your prices displayed in different currencies in different locations, you have to have separate stores. But if you have one store and if you enable USD currency for your products, Google crawlers will show your products in USD, even though your store is not a US store and is located somewhere else in the world. Schema in general shows USD as long as you set your prices in USD, despite you selling in Europe and using EUR or GBP.

So for your store to show the correct matching currency in SERPs you either have to have separate stores and put prices in that location's currency or if you want to display EUR/GBP only, you'd just have to disable the USD currency. That's the only way, I am afraid. Our app cannot help with displaying different currencies in different places for one store. This is how Shopify works.