We are coming out with a new app in the Shopify app store!
Super excited. Its called SimpleSync and will take care of syncing all your FBA products between Amazon and Shopify.
If you'd like to try it out before we go live here is a video: https://bit.ly/3u1PnQ4 and here is the install link. Its totally FREE right now while we're in beta, just please let us know what you think! Here is the link to install: https://bit.ly/3nraglp