How to Connect Shopify to Amazon in 2026
Connect Shopify to Amazon Seller Central so stock, orders and listings stay in step: the two ways to do it, what syncs, which Amazon marketplaces work, and the setup steps.
Connect Shopify to Amazon Seller Central so stock, orders and listings stay in step: the two ways to do it, what syncs, which Amazon marketplaces work, and the setup steps.
To connect Shopify to Amazon, link both stores to an app that talks to Shopify and Amazon Seller Central. There are two ways. Shopify’s free Marketplace Connect app sells your Shopify products on Amazon from inside Shopify. A multichannel system like OneCart connects Shopify, Amazon, Shopee, Lazada, TikTok Shop and more to one stock count, so a sale anywhere updates every channel.
This guide covers which option fits, what syncs, which Amazon marketplaces work, and the setup steps in OneCart.
| Your situation | Use |
|---|---|
| You sell only on Shopify and Amazon, and run everything inside Shopify | Shopify Marketplace Connect |
| You also sell on Shopee, Lazada, TikTok Shop, Temu or other marketplaces | OneCart |
| You run several stores, brands or warehouses and need one stock count | OneCart |
| You sell on Amazon outside the US, for example Singapore, Japan or Australia | OneCart |
| Data | Direction | How it works |
|---|---|---|
| Stock | OneCart to Amazon and Shopify | One stock count per SKU. When it changes, OneCart pushes the new quantity to every linked listing |
| Amazon orders | Amazon to OneCart | Pulled every 10 minutes and deducted from stock as they arrive |
| Shopify orders | Shopify to OneCart | Flow into the same order list as Amazon, and deduct the same stock |
| Price | OneCart to Amazon | Set per listing, so Amazon can carry its own price |
| Listings | Both ways | Import your existing Amazon listings and link them to Shopify SKUs, or create new Amazon listings from your products |
| Order history | Amazon to OneCart | Recent orders are brought in when you first connect, without changing stock |
OneCart connects to Amazon Seller Central through Amazon’s Selling Partner API in three regions:
You pick the region when you connect, and OneCart reads your marketplace from your own Seller Central account.
In OneCart, go to Settings > My Platforms > Manage Connections, choose Add shop for Shopify, install the OneCart app in Shopify and log in. Full steps: How to connect Shopify to OneCart.
On the same page, choose Amazon, pick your store region, sign in to Seller Central and approve OneCart. You land back in OneCart once Amazon confirms. Full steps: How to connect your Amazon store to OneCart.
If a product is already listed on Shopify and Amazon, import both sets of listings and link them to the same SKU in OneCart. From then on they share one stock count. See bulk refresh and match listings.
For products that are only on Shopify, cross-post them to Amazon from OneCart, one at a time or in bulk: how to cross-post to platforms and bulk cross-post.
Amazon and Shopify orders now arrive in one order list. A sale on either channel lowers the shared stock, and OneCart pushes the new quantity to the other, so you stop overselling the last units.
The same OneCart account connects Shopee, Lazada, TikTok Shop, Temu, WooCommerce, Magento, Zalora, Qoo10 and more, so your Shopify catalogue can feed every marketplace you sell on. If you are weighing up where to sell next, see how to sell on Amazon without inventory and the Amazon integrations page.
Link both stores to an app that talks to Shopify and Amazon Seller Central. Shopify’s free Marketplace Connect app sells Shopify products on Amazon from inside Shopify. A multichannel system like OneCart connects Shopify, Amazon, Shopee, Lazada, TikTok Shop and more to one stock count: connect each store, link matching SKUs, and OneCart keeps stock, orders and listings in step.
Amazon Seller Central accounts in North America (US, Canada, Mexico, Brazil), Europe, and Asia Pacific (Australia, Japan, Singapore). You choose the region when you connect, then sign in to Seller Central to approve OneCart.
Yes. OneCart holds one stock count per SKU. When stock changes, from a sale on any channel or a manual edit, OneCart pushes the new quantity to every linked listing, Amazon included. Amazon orders are pulled into OneCart every 10 minutes and deduct stock as they arrive.
Every 10 minutes. When you first connect Amazon, OneCart also brings in your recent order history so past sales show in your reports; those backfilled orders do not change your stock.
Yes. You can import the listings you already have on Amazon and link them to your Shopify SKUs, or create new Amazon listings from your products with OneCart’s cross-post tools, one at a time or in bulk.
Yes. Prices are set per listing, so you can price Amazon to cover its referral and fulfilment fees while keeping your Shopify price.
If you sell only on Shopify and Amazon and manage everything inside Shopify, Marketplace Connect is the simple start. If you also sell on Shopee, Lazada, TikTok Shop or other marketplaces, or run more than one store or warehouse, use OneCart so every channel shares one stock count and one order list.
Shopee, Lazada, TikTok Shop, Temu, WooCommerce, Magento, Zalora, Qoo10 and more, plus couriers and accounting with Xero, all managed from the same OneCart account.
OneCart connects Amazon to Shopee, Lazada, Shopify and 20+ marketplaces: one inventory, one order pipeline.
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