You can activate multiple languages in Shopify and use Perfion localizable features to translate the information's in Shopify. Follow this Shopify guide to setup Shopify for multiple languages in Shopify and add the extra languages in the setting parameter Languages as a comma separated list of Perfion Languages.
All the languages need to be mapped from a Perfion Language code to a Shopify language code (Shopify use “ISO 639-1 language codes)
