Connect Amazon to Suppli

Suppli connects to Amazon through a short guided authorization step, then keeps your inventory quantities in sync automatically from there.

ℹ️ Listings must exist first: Suppli can only update inventory for listings that already exist on Amazon. The SKU in your Amazon listing must match exactly what's in Suppli's Product Mapping.

Log into Amazon Seller Central

Go to sellercentral.amazon.com and sign in. You need an active Amazon Marketplace seller account to proceed.

Connect in Suppli

In Suppli, go to Channels → Amazon. Select which supplier these Amazon listings belong to and click Connect → — this creates the connection and shows you the next step right there on the page.

ℹ️ You don't need to create a developer app or enter any client ID/secret yourself — Suppli connects using its own registered Amazon app.

Authorize and paste your token

Click Open the Amazon authorization page (opens in a new tab) and sign in with your seller account. Amazon will show you a token starting with Atzr| and your Seller ID — copy both.

Back in Suppli, paste the Seller ID and token into the two fields and click Save token. Suppli verifies it immediately — you'll see a green Connected badge as soon as it's confirmed.

ℹ️ Token auto-refresh: once saved, Suppli automatically renews the access token before it expires — you only need to repeat this step if you disconnect and reconnect.

Verify sync is working

After your next feed runs, confirm Suppli is pushing to Amazon:

Go to Sync logs in Suppli — look for an Amazon badge on the sync run
In Seller Central, check your listing's inventory quantity matches what Suppli pushed

⚠️ SKU must match exactly — the Seller SKU in your Amazon listing must match the Internal SKU in Suppli's Product Mapping exactly, including capitalisation. This is how Suppli identifies which listing to update.

ℹ️ How Amazon inventory updates work: Suppli updates your listing's quantity directly via Amazon's Listings API — changes are typically reflected within a minute or two.

ℹ️ Only connected suppliers count: Only suppliers with an active Amazon connection contribute to the Amazon inventory total — same pattern as eBay and Walmart.

Also useful

← Walmart tutorial