Expanding a Shopify fashion brand onto Asos Marketplace, Zalando and Decathlon means wrestling with three different listing schemas, three size-attribute taxonomies, and three order formats — usually managed by hand in spreadsheets until oversells and content rejections start eating margin. The Asos & European Fashion Marketplace Connector is a connector ECOSIRE builds, configures and installs for your specific store and catalog so that flow runs automatically.

This is not an instant App Store download. After purchase, our engineers scope your catalog structure, marketplace seller accounts and warehouse setup, then build a connector tailored to your variants and ship it as a private Shopify app on your store.

Under the hood it reads your catalog through the Shopify Admin GraphQL API, maps each variant's size and color options and metafields to the marketplace's required attribute set, and pushes compliant listings. Inventory stays accurate via multi-location inventory tracking and inventory_levels/update webhooks, so a sale on Zalando decrements the same stock pool that feeds your Shopify storefront and Asos listing — the core defense against overselling one-of-a-kind sizes. Marketplace orders are pulled back in as native Shopify orders, and when you fulfill, tracking numbers and carrier data are written back to the originating marketplace.

A channel manager view lets your merchandising team control which products list where, per-marketplace pricing rules, and image and content compliance checks (resolution, background, required attributes) before anything is submitted. Authentication uses OAuth to each marketplace's seller API and Shopify's app grant — no shared passwords. You own the installed app; ECOSIRE provides the build, handover documentation and ongoing support.