After searching for a solution to listing our products on multiple sites we finally found one that works.. Zentail.. and the support and training are outstanding. Zentail also works for processing orders. We listed our products on Walmart, BigCommerce, Amazon.com, Jet.com and two different eBay stores. Our product information was imported from our FBA Amazon listings and then we were able to list the products to the other sales channels. If you are looking for a solid ecommerce solution for listing your products look no further.