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?