Amazon in Polar: orders in, real marketplace margin out.
Connect Amazon Seller Central and gross sales, orders, fees, refunds and costs flow into Polar, down to SKU, marketplace and fulfillment channel. Polar nets the fees out and blends it with Shopify, so you see marketplace profit and channel mix on one P&L instead of a separate Seller Central dashboard.
/Setup Guide
How to Connect Amazon Seller Central to Polar.
01 · What you need
A Polar account with Shopify
A Polar account with Shopify connected. This connector plugs in right next to your stack.
Connect your data →Admin on Seller Central
Admin permissions on the Seller Central account. No admin access? An Amazon admin can join your Polar workspace temporarily and authorize it for you.
Open Seller Central →One connection per region
Each Amazon region is connected separately, so US, UK and EU each get their own authorization. Polar backfills up to two years, the maximum Amazon’s API returns.
02 · Connect Amazon Seller Central
1
Connect Seller Central ~2 min per region
One authorization per Amazon region.
From Connectors, add Amazon Seller Central and authorize on the country-specific Seller Central page, then pick the matching region in Polar. Repeat for each region you sell in. Polar starts pulling gross sales, orders, fees, refunds and costs.
Worth knowing: the first backfill runs at Amazon’s pace. Their API releases historical data slowly, so the initial load commonly takes two to three weeks depending on volume. Reporting on recent data starts well before that.
2
Fees netted, blended automatic
Real margin, not gross.
Polar nets Amazon's fees out and blends the result with Shopify, down to SKU, marketplace and fulfillment channel, so marketplace profit is calculated on real cost.
Note: once the backfill is done, Amazon data refreshes daily or hourly depending on your Polar plan. Data comes through Seller Central: marketplace listings on their own are not a data source.
3
One P&L across channels the payoff
DTC and marketplace, together.
Amazon sits next to your DTC revenue on one blended P&L, so you see channel mix and true margin instead of switching to a separate Seller Central dashboard.
Side by side
Seller Central shows Amazon. Your business is more than Amazon.
Seller Central reports Amazon in isolation, gross numbers, its own fees, its own dashboard, and it cannot see your DTC store or the rest of your stack. So the real question, “what did Amazon actually make me, next to everything else,” has no home. Polar is that home.
Amazon on its ownon its own
+Amazon with Polarblended
Marketplace numbers live in Seller Central, DTC lives elsewhere.
Amazon and DTC on one blended P&L, down to SKU and marketplace.
Gross sales, with fees buried in separate reports.
Fees netted out automatically, so margin is real.
No blended view of channel mix or true margin.
Channel mix and marketplace profit next to every other channel.
Nothing reconciles against your real P&L.
Every Amazon dollar reconciled into contribution margin and net profit.
The Gap
The Amazon Seller Central connector is only half of it.
Once your Amazon sales, fees and costs are clean and attributed inside Polar, you can use them wherever you already work. Ask Polar in plain language, pull them live through the Polar MCP, or schedule a snapshot into the report your team reads every morning.
Amazon Seller Central
sales, orders, fees, costs
Polar
net margin, blended, by SKU