What Is a Marketplace Integration Program? Choosing an Integrator

Marketplace integration is a system that automatically matches your store's product, stock, price, and order information with the APIs of platforms like Trendyol, Hepsiburada, and Amazon. Without integration, you track every order one by one in the panel and update stock manually — with more than 50 SKUs, this can take hours a day. Integrator software brings this entire flow onto a single screen: an invoice is issued the moment an order comes in, a product is automatically deactivated across all marketplaces once it's out of stock, and price changes propagate within seconds. A ready-made panel can be enough at small scale; at 100+ orders a day, an API-based, rule-driven system saves real time. Ecomiro's Stock Sync module automates this — when stock changes on one product, it reflects across all your stores at the same time.

There are two basic integration methods: a direct API connection and a ready-made integrator panel. With an API connection, your team writes custom code against the Trendyol/Hepsiburada API; flexibility is high, but development can take 2-6 weeks and requires ongoing maintenance. A ready-made panel means subscribing to an existing system like BirFatura or Tam Entegre and connecting your store within a few hours — no coding required, but customization stays limited. For most sellers, the right approach is hybrid: core flows (stock, orders, invoicing) run through a ready-made panel, while special needs like pricing and reporting are handled by an API-based platform. Compare firms against these five criteria.

• Scope — How many marketplaces and how many SKUs can it manage at the same time?
• Security — Are API keys stored encrypted, and is data access logged?
• Price — Is it a fixed monthly fee, a per-transaction fee, or is there a setup cost?
• Support — How long does live support take to respond, and how quickly are integration errors resolved?
• Regulatory compliance — Are e-invoice, e-archive, and VAT calculations handled automatically?

Pricing varies widely depending on your volume. For low-volume sellers, tools like BirFatura offer a free plan for up to 20 invoices a month; above that, monthly billing kicks in. At medium-to-high volume, systems like Tam Entegre offer multi-marketplace support in the TL 950/month range (TL 9,500/year). At enterprise scale, the cost shifts to a one-time setup/customization fee, which can range from TL 5,000 to TL 50,000. The general market average clusters around TL 2,000-10,000 — use this range as a benchmark when getting quotes.

Prices reflect 2026 average market data; get a written quote from the firm for exact pricing.

The one requirement you must verify before signing an agreement with an integrator firm is that it's actively listed on GİB's 'Special Integrator' list. An e-invoice/e-archive flow set up without this approval can be considered invalid for tax purposes, and the liability falls on you. Beyond approval, the criteria you should look at are: how many years the firm has been doing Trendyol/Hepsiburada integrations, its number of reference stores, whether its support team is reachable outside business hours, and the cancellation/termination terms in the contract. Price alone shouldn't be the deciding factor; a cheap package can lead to stock errors from a lack of support, which in turn leads to returns and rating loss.

On Trendyol, integration is set up in one of two ways: connecting directly to the Trendyol Partner API (requires a technical team), or choosing a firm from the approved special integrator list and giving that firm your store details. With the second method, the process usually takes 1-3 business days: the seller panel generates the API key, you pass it to the integrator, and the firm syncs your product/stock/order flow. Commission rates in 2026 start at 5% depending on category; women entrepreneurs get a special rate in the 1.80%-5.50% range, and level 4-5 sellers can pay 2.5-7 points less than the standard rate in some categories/brands. Don't forget to check the current rate regularly in the seller panel.

See current commission rates

Managing Trendyol and Hepsiburada at the same time often means entering stock and price data in two separate panels, which doubles the risk of errors. An integration layer feeds these marketplaces from a single hub: when stock drops on a product, it updates instantly on both platforms, and price changes propagate simultaneously. Ecomiro's Multi-Store module automates this — you can manage all your stores from a single screen and compare which marketplace is more profitable using reports. When you want to add Amazon or Shopify, you can scale up the same integration infrastructure without rebuilding it from scratch.

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