Because this is built to order, typical delivery is about one working week from when we receive your Coupang Wing API credentials, catalog/attribute details, and environment access. A straightforward catalog with standard attribute sets lands at the shorter end; complex category mapping, many attribute sets, or multi-store setups take longer. We confirm a firm timeline in writing after a short scoping call before any work starts.

Every build includes a post-go-live support window for bug fixes and configuration help. After that, an optional maintenance retainer covers Coupang API changes, Magento 2.4.x security/version upgrades, mapping adjustments as your catalog grows, and monitoring of failed syncs. Coupang periodically changes required category/notice fields; the retainer keeps your listings passing validation. You always receive the full source, so you are never locked in.

Yes. The module is built as a standard Magento 2 component and runs on Adobe Commerce and Magento Open Source 2.4.x (PHP 8.1-8.3). It uses service contracts, di.xml plugins, observers and cron rather than core overrides, so it stays upgrade-safe. It is MSI source/stock aware and respects multi-store and per-store-view configuration scope.

Yes. Orders placed on Coupang are imported as native Magento sales orders through an observer-driven pipeline with idempotency keys, so a retried import never creates duplicates. Inventory changes sync back to Coupang via interceptors on stock save plus a reconciling cron sweep, which reduces the risk of overselling. We tune the sync cadence and reservation handling to your fulfillment model.

Yes. You need an approved Coupang seller account with Wing (Seller) API access — Coupang requires sellers to operate in Korea and complete their onboarding/verification. We do not resell or provide that account. Once you have your Wing API keys, we configure, secure (encrypted credential storage), and connect them during the build, and verify the connection before go-live.