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CedCommerce provides integration for Amazon where you can manage your already listed Amazon products via the app without losing ratings & reviews. Once you link your products with the app, you will manage automatic syncing of inventory/price. Also, the app will manage your orders from Amazon to Shopify along with Shipment syncing from Shopify to Amazon.
The app provides free days trial so that you can test the app without any restriction. When you start using the app, you can get 24*7 support via skype or Whatsapp or online live chat support or via email. Also, a dedicated personal account manager will be assigned to you to assist you with the app. If require a meeting can also be scheduled with team.