Q: I am using ecom syndicator to sync eBay Ireland, eBay USA, and eBay UK. Do I need to create a separate CSV marketplace for each eBay country that I sell in?
A: In your ecom syndicator there should be 1 CSV marketplace for each country linked to 1 eBay Marketplace Channel for each country. Essentially, the same steps you took in Settings in ecom syndicator and in your marketplace settings in Sku Grid for 1 country, you should also do for the others.