It is possible to enable automatic translation feature in Localization section of the admin.
Checkify provides two options:
Automatic translation by country's IP. This is useful when you are selling to countries with one dominant language, such as France, Italy, etc.
Automatic translation based on the language of a device being used. This is useful when you are selling to countries with multiple languages, such as Canada, Switzerland, etc.
Example: Detection and auto translation to Italian
Example: Detection and auto translation to Swedish
At the same time, you can customize each language individually in the Localization section. In this case, auto translation will use custom text data in the first place.
Elements like PayPal button or Stripe's payment element UI are not translated via Checkify. Their language is determined primarily by customer's network. For example, Stripe detects the locale of the browser.
You can enable "auto translate by IP" option on Checkify and then use different VPNs, or ask friends or colleagues residing in other country for a quick test. You will get different results for the two mentioned elements.
Therefore, after customizing your non-core languages, we strongly recommend that you check and activate your base language for the checkout: enable the trigger then save.
The base language will be used if the buyer's language could not be determined.
Big sales to you, in any part of the world!