Shopify's native route to Amazon is Marketplace Connect, Shopify's own app for selling on marketplaces from the Shopify admin. For this direction, the data that matters is Amazon orders: Marketplace Connect imports them into Shopify so fulfillment and inventory run from one place, and keeps inventory levels synced so an Amazon sale doesn't leave Shopify overselling the same stock. It needs an Amazon Professional seller account. Pricing is free for the first 50 synced orders a month, then 1% per synced order, capped at $99 a month. Make or n8n are only worth adding for gaps, such as custom reporting on Amazon fees.
Note: We've identified 3 known limitations with this integration.
See known limitations below for details.