Coupang is South Korea's largest e-commerce marketplace, and reaching its buyers from Magento 2 means matching Coupang's catalog taxonomy, Korean-language attributes, and order/fulfillment lifecycle — work that no generic connector handles cleanly. ECOSIRE builds this integration to order as a proper Magento 2 module under app/code/Ecosire/CoupangIntegration, wired through di.xml service contracts, plugins/interceptors, and observers rather than core hacks, so it survives upgrades and setup:upgrade.

The extension authenticates to Coupang's Wing/OpenAPI using your seller credentials (HMAC-signed requests) and exposes a dedicated admin section gated by Magento ACL, plus configurable cron jobs for unattended catalog, inventory, price and order synchronization. Product publishing maps your Magento attribute set and categories to Coupang's category and notice/attribute requirements, with a Korean content and attribute mapping layer so listings meet Coupang's localization rules. Inventory and price changes propagate on a schedule or on save via observers; Coupang orders are imported as native Magento orders with address, payment-method placeholder and shipment hooks, including support hooks for Rocket (로켓배송) fulfillment flows.

Because every Coupang seller account, attribute set and SKU structure differs, this is built to order — not an instant Marketplace download. After purchase, ECOSIRE scopes your account, develops against your catalog, installs on your staging then production environment, and supports the module. It runs on both Adobe Commerce and Magento Open Source, integrates with Multi-Source Inventory where present, and ships with clear logging and a re-sync console for operations staff. You own the code.