Amazon Integration: SP-API Connection, Orders and Stock

Amazon integration connects your Amazon seller account to the panel over SP-API. The connection requires four credentials: seller ID, application key, secret and refresh token. Once connected, orders and stock/price synchronisation run from the panel. Because Amazon exposes no customer question endpoint, the question-and-answer flow does NOT work on this marketplace.

What credentials does Amazon integration need?

Unlike other marketplaces, Amazon uses application-based authorisation. Four credentials are needed: seller ID, application key, secret and refresh token. The refresh token is produced when the authorisation flow completes on Amazon’s side and is what keeps the connection working indefinitely; the keys alone are not enough.

Entering these four fields establishes the connection and starts the first synchronisation. As with other marketplaces, the critical step is verifying product matching. Amazon identifies products by ASIN; if the mapping between your own stock code and the ASIN is wrong, automation will update the stock of the wrong product.

What works on Amazon integration, and what does not?

What works: order flow lands in the panel and picking/packing runs from there; stock and price are managed centrally, so a change in one store propagates to others by rule; profitability is tracked for Amazon lines as well.

What does not — and this must be stated plainly: the customer question flow does NOT exist on Amazon. This is not missing development; it is the marketplace’s API scope. SP-API exposes no question-and-answer endpoint, so no integration can provide it. The interface does not say "coming soon" for this marketplace either, because its arrival does not depend on us.

Return data on Amazon arrives as an asynchronous report rather than from a live endpoint. Return management is therefore not implemented for Amazon; do not expect the live return list you get on Trendyol or Ozon. Knowing this in advance removes the "why can’t I see returns here" question after setup.

How do you become an Amazon seller?

Registration goes through Amazon’s own seller channel and Amazon sets the acceptance criteria. Requirements vary by country and by the marketplace you intend to sell in, so no fixed document list is given here; confirm current requirements on Amazon’s seller page.

Preparing these speeds the process: legal entity and tax registration, a bank account that can receive international payments, product images and English descriptions, and barcode (GTIN/EAN) data. Because the Amazon catalogue is barcode-driven, starting without barcodes is the single biggest source of delay.

Once the store is open, the integration task is completing authorisation and entering the four credentials. No technical setup, server or developer is required.

What goes wrong most often in Amazon integration?

The first mistake is skipping ASIN matching. The Amazon catalogue identifies products by ASIN; if the mapping between your stock code and the ASIN is built wrong, automation updates the wrong product’s stock the moment it is enabled, and you only notice when the wrong order arrives.

The second is not keeping a stock buffer. Marketplace queues are not instantaneous and stock can dip below zero in the seconds between two sales. On Amazon the cost of overselling is not just a cancellation but a hit to seller metrics, which makes the buffer more valuable here than elsewhere.

The third is not watching the authorisation. The connection rests on a refresh token; if the token is revoked or access is removed, synchronisation stops silently. The panel’s connection warning should not be ignored, because a stopped sync keeps selling against stale stock.

How is profit measured on Amazon sales?

Amazon profit carries two extra variables: currency and marketplace. Sales settle in USD while your costs arise in TRY, so the exchange rate determines the margin at collection time rather than at sale time. When comparing a USD line against TRY costs, which rate was used matters as much as the margin itself.

The second variable is the shipping and storage model. If you ship yourself, the cost items stay with you; if you use Amazon’s logistics service, storage and handling fees enter the calculation and they differ per product. For a profit report to be meaningful, those items must be defined at product level.

The general rule still applies: a calculation made before the sale is an estimate, and the accurate source for realised profit is the order itself. The marketplace’s order and payout data carries the actual deductions for that line, and the profitability report must use that value rather than the estimate.

Which market does Amazon serve and in which currency do you sell?

Amazon’s primary market is the US and transactions run in USD. The panel holds this store’s orders in USD; because your costs arise in TRY, a second variable enters the profit calculation: THE EXCHANGE RATE.

Currency risk is where most sellers underestimate the exposure. The margin is set not when the sale happens but when the money converts to TRY. If the rate moves against you during the payout term, the profit you calculated at sale time may have evaporated by collection. A realised profitability report must therefore use the order’s own deduction data and the collection rate, not an estimated percentage.

The second difference is tax treatment: how tax applies to the marketplace’s fees varies by country. In one market fees are quoted tax-inclusive, in another tax is added on top, in a third the marketplace itself collects and remits the sales tax. Computing all three with one formula silently produces the wrong profit, which is why the panel keeps the country rule as a separate field.

How do you become an Amazon seller from Turkey or from abroad?

FROM TURKEY: Selling into the US from Turkey is a cross-border transaction subject to export rules. Sales in small parcels fall under Turkey’s MICRO EXPORT regime: the shipment is declared with an ETGB (electronic commerce customs declaration), and that declaration grants FULL VAT EXEMPTION — output VAT is zero, while the input VAT you paid when buying the goods becomes refundable. This is the most overlooked advantage of cross-border selling; a seller who does not file the declaration loses both the exemption and the refund.

The panel reports this separately: which orders fall under micro export and their totals are collected in a dedicated view. Also, the 1% withholding deducted from marketplace payouts is NOT A COST — it is offset against income or corporate tax; recording it as an expense in pricing understates your margin.

FROM ABROAD: If you are established in the US, the transaction is a domestic sale and that country’s tax regime applies; micro export rules do not. In either case applications go through Amazon’s own seller channel and the marketplace sets the acceptance criteria. Requirements change by country and over time, so no fixed document list is given here — confirm current requirements on the Amazon seller page. On the integration side there is no difference: wherever the store was opened, it connects with the same credentials.

How do you become a seller on Amazon?

To sell on Amazon Turkey (amazon.com.tr) you open an account in Amazon Seller Central; to sell in the US, Canada, Mexico and Brazil you register separately at sellercentral.amazon.com. Both registrations include identity verification and a video call step.

Official application link

Amazon requires a separate account per region: Europe and the Middle East need their own registrations.

Who can apply?

On Amazon Turkey you can sell without a company on the Individual plan; the Professional plan requires a sole proprietorship, limited or joint-stock company and tax registration.

Required documents and information

Application steps

  1. Open an account in Seller Central and verify your e-mail.
  2. Enter your business details.
  3. Enter your seller (personal) details.
  4. Add billing and payment details.
  5. Complete identity verification.
  6. Take the video call with an Amazon associate; selling starts once the account is approved.

Fees and approval time

On Amazon US the Professional plan is USD 39.99 per month and the Individual plan USD 0.99 per item sold; identity verification usually takes 3 business days or less. Official Amazon Turkey sources conflict on the monthly plan fee, so check the current amount on the sign-up screen.

Information checked against the marketplace's official pages on 2026-10-02; requirements may change, read the official page before applying.

Frequently asked questions

How many credentials does Amazon integration require?

Four: seller ID, application key, secret and refresh token. The refresh token is produced by the authorisation flow on Amazon’s side.

Can I answer Amazon customer questions from the panel?

No. Amazon SP-API exposes no question-and-answer endpoint, so this flow works on no integration for Amazon. It is marketplace scope, not missing development.

Do Amazon returns appear in the panel?

Not yet. Amazon provides return data as an asynchronous report rather than a live endpoint, so return management is not implemented for this marketplace.

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