A listing loader is a tool that allows you to sell products that are already listed in the market place catalogue. It is through matching the products from your catalogue with corresponding products that sellers have already sold in Amazon. The best part is that, the Ultimate Sourcing Sheet allows you todo this this in just a few simple steps compared to the Amazon listing loader and you wouldn't have to worry about forgetting the steps, as we also have instructions ready for you on the set-t up sheet in case you forget the process.