Alex & Rob,
Are you looking to automatically sync your inventory levels for products you sell both through Amazon & Shopify? If so, check out Stitch Labs, we offer real-time sync between the two channels (and many others).
For example, if you make a sale on Shopify, the inventory level is automatically updated in Stitch and that change is also automatically reflected in Amazon. You'll also be able to compare sales across the two channels to help you make smart decisions to grow your sales by understanding how the two are similar -- and different.
We currently support Amazon.com, Amazon.ca, and Amazon.co.uk.
- Bridge