For Amazon and TCGPlayer, only the English versions of cards can currently sync. Both of those sales channels use Condition mapping to sync with the item ID in our catalog. Currently, the mapping is only created for the "Condition" variant, so the language that syncs defaults to "English". This means that we aren't able to map non-English cards to sync with Amazon or TCGPlayer at this time.

Foreign singles are able to be listed to eBay, though. eBay listings are manually created by you, and don't require you to list to an existing listing on eBay. This means that you are able to sync any conditions or languages to eBay (similar to how you can sync customer products that weren't imported from our catalog to eBay).
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