n11 Integration: API Connection, Orders and Stock Management

n11 integration connects your n11 seller account to a single panel using an API key and secret. Once connected, orders and customer questions land in the panel and stock and prices update together with your other stores. n11 allows 48 hours to answer a customer question.

What credentials does n11 integration need?

The n11 connection uses two credentials: an API key and an API secret. Both belong to your n11 seller account; entering them establishes the connection. No separate server, static IP or developer support is required.

The first synchronisation pulls your existing products and open orders into the panel. The critical step is verifying barcode and stock code matching. If matching is wrong, automatic updates write to the wrong product, so check the catalogue before enabling automation.

What does n11 integration automate?

Order flow moves into the panel: new orders appear in the list, picking and packing run from there, shipping labels print in bulk. Stock and price are managed centrally, so a change in one store propagates to the others by rule. Customer questions are queued and a draft answer is produced from product data.

n11 allows 48 hours to answer a customer question — a tighter window than ÇiçekSepeti’s 72 hours. The panel counts it and surfaces questions close to expiry, because delay feeds directly into the store rating.

What goes wrong most often in n11 integration?

Four mistakes repeat, and all four are preventable at setup. Barcode mismatch: if the same product carries different barcodes on the marketplace and in your own catalogue, matching is built wrong and automation updates the stock of the wrong product. Variant confusion: if colour and size variants are matched as a single product, one variant’s stock is written to another.

No stock buffer: marketplace queues are not instantaneous, and stock can dip below zero in the seconds between two sales. A small buffer is the cheapest insurance against overselling. Pricing rules built around one marketplace: if the same product sells in several places and the rule only looks at one, a loss-making price can appear in the other.

What these four share is that none of them is visible at setup; they surface as volume grows. The safest path is therefore not to switch automation fully on immediately, but to observe a small set of products for a day after the first synchronisation.

How is profit measured correctly on n11 sales?

Profit is not sale price minus commission. The real profit on an order is what remains after commission, shipping cost, platform service fee, return cost and the product’s purchase cost. Some of these only settle when the payout statement is issued rather than at the moment of sale, so any figure calculated at sale time is by definition an estimate.

The correct method has two stages. Before the sale, a category-based estimated rate guides pricing; the aim there is to prevent a loss-making price from the outset. After the sale, the most accurate source is the order itself — the marketplace’s order and payout data carries the actual deductions for that line. A realised profitability report must use that value rather than the estimate, otherwise the monthly profit table drifts systematically.

Return rate is the item most often skipped in this calculation. A product that shipped and came back incurs outbound shipping, return shipping and handling cost; if it cannot be resold, the entire cost becomes a loss. For most stores, seeing the return rate per product improves profit faster than raising prices.

How do you become an n11 seller?

Applications go through n11’s own seller channel; the marketplace sets acceptance criteria and those can change. No fixed document list is given here — confirm current requirements on n11’s seller page.

Preparing these speeds the process: legal entity and tax registration, a commercial bank account, product images and descriptions, barcode data. Once the store is open, the only integration task is entering the API key and secret.

Which market does n11 serve and in which currency do you sell?

n11 is a Turkish marketplace: the buyer is in Turkey, sales settle in TRY and delivery goes through contracted carriers. In the panel this store’s orders are held in TRY and profit is calculated in the same currency — no exchange conversion is involved.

The practical meaning is that costs sit in the same currency. If you buy in TRY and sell in TRY, the only things eroding your margin are commission, shipping and returns; there is no currency risk. That changes if you import your goods — then the purchase cost depends on the exchange rate, and which rate you priced against starts to matter.

If you sell the same product here and on a foreign marketplace, both stores can draw from one stock pool — but price rules should be set separately, because the commission structure and buyer expectations are not the same in the two markets.

How do you become an n11 seller from Turkey or from abroad?

FROM TURKEY: Because this is a Turkish marketplace, the natural seller profile is a tax-registered sole trader or company established in Turkey. Applications go through n11’s own seller channel and the marketplace sets the acceptance criteria. Those criteria change over time, so no fixed document list is given here; always confirm current requirements on the n11 seller page.

Preparing these speeds the process: tax registration and legal entity records, a bank account able to receive payouts, product images and descriptions, and barcodes. If you sell a brand, a trademark registration or authorised reseller document may be requested — this varies by category.

FROM ABROAD: Whether a seller not established in Turkey can open a store here, and what additional conditions would apply, is the marketplace’s own decision and changes over time. So we do not say "yes" or "no" here; the right address is the marketplace’s own seller application page. On the integration side there is no difference: wherever the store was opened, it connects to the panel with the same credentials.

How do you become a seller on n11?

Opening a store on n11 is free and, according to n11, no documents are requested during sign-up: your company details are verified against tax office records. If you have a tax exemption you only upload the exemption document.

Official application link

Who can apply?

Businesses whose tax registration can be verified with the Turkish Revenue Administration. Sellers with a tax exemption have a separate application path.

Required documents and information

Application steps

  1. Enter your details on the "Open a store on n11" page.
  2. Verify your company details against the tax office record.
  3. Create your password.
  4. Enter your bank details and complete KEP and e-mail verification.
  5. Upload your products once the store is open.

Fees and approval time

Opening a store is free. Approval time is not stated in official sources.

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

Frequently asked questions

Can n11 and other marketplaces draw on the same stock?

Yes. With a shared stock pool the physical stock is held once and a sale in any store draws from the pool, so the same 10 units are not shown as 10 units in two stores at the same time.

Should automation be fully enabled on day one?

Not recommended. Observing a small set of products for a day after the first synchronisation catches barcode and variant matching errors before volume grows.

How many credentials does n11 integration require?

Two: an API key and an API secret.

What is the answer window for n11 customer questions?

n11 allows 48 hours. The panel counts the window and surfaces questions that are close to expiring.

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