The Newegg Marketplace Connector for Shopify bridges your Shopify catalog and your Newegg Seller account so you can sell to Newegg's tech-focused buyers without maintaining a second product database by hand. This is a build-to-order app: ECOSIRE develops it against your exact catalog structure, installs it as a custom Shopify app on your store, and supports it — it is not an instant App Store download.

The connector authenticates to Shopify via OAuth with a custom app token and reads your catalog through the Admin GraphQL API. Products, variants, and SKUs are mapped to Newegg's Item & Inventory feeds, with tech-specific category and attribute mapping (CPU, GPU, storage, condition, UPC/MPN/brand) so listings pass Newegg validation instead of bouncing on missing required fields.

Once live, Shopify webhooks (inventory_levels/update, products/update, orders/create) drive near-real-time inventory and price sync from your chosen Shopify location(s) to Newegg. New Newegg orders are imported as Shopify orders, fulfillment and tracking numbers flow back to Newegg automatically, and Shipped-by-Newegg (SBN) items are reconciled so SBN stock isn't double-sold against your own warehouse. You manage both US and CA Newegg regions from one configuration, with per-region pricing and currency rules.

Because it's built for you, edge cases specific to your catalog — bundle SKUs, kit components, multi-location inventory, or custom metafields that hold spec data — are handled in the mapping layer rather than forced into a generic template. ECOSIRE delivers, installs, tests against your live store, and provides ongoing support and updates as Shopify and Newegg APIs evolve.