Shopify Marketplace Connect

If you are doing eBay or Etsy this app is awesome! As others have said, connecting Amazon is a bear. In a perfect world, and once you get it working it should be just as easy as the other platforms. There are still a lot of bugs they have to work out as the field mappings are a guessing game and huge time sync as it is very slow to communicate with Amazon's API. Overall its still a great app.