Upload Product Catalogs to Facebook in multiple languages

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I've recently set up one of my domains to have multiple languages.  Default is English, and there is German, French, Spanish, Italian, and Polish.  These are set up as domain.com/de, domain.com/pl, domain.com/fr, etc.

Now I'd like to send a product catalog to Facebook in each of these languages so I can set up ads in each language.  I've used the Facebook app on Shopify for the main/English products.  What's the best way to get the other languages in there?  Is there an app that can do this, or will I have to create manual upload feeds?