Illustrative previewA custom-built Shopify connector that lists products,
syncs stock and prices, and imports orders between your store and European fashion marketplaces like Asos, Zalando and Decathlon. Built, installed and supported by ECOSIRE.
What is Asos & European Fashion Marketplace Connector?
A custom-built Shopify connector that lists products, syncs stock and prices, and imports orders between your store and European fashion marketplaces like Asos, Zalando and Decathlon. Built, installed and supported by ECOSIRE. Built to order by ECOSIRE for Shopify (build-to-order) — indicative price from $999.00 USD; request a quote for a scoped proposal.
Key Features
Built to order, done for you
No DIY setup — a working app, built, installed and supported by ECOSIRE.
- 1
You order
Start with a one-time build price. We scope it with you at kickoff.
- 2
We build & install
ECOSIRE builds, configures and installs it on your Shopify.
- 3
Go live + support
You go live in about one working week, with two weeks of go-live support. Defects in the code we deliver are fixed free of charge.
About this Product
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.
What you get
- A private Shopify app installed on your store, configured to your catalog and connected marketplace seller accounts
- Variant and metafield attribute-mapping configuration for each connected marketplace (Asos, Zalando, Decathlon)
- Inventory and price sync rules configured to your warehouse locations and pricing strategy
- Order import and fulfillment write-back pipeline wired to your fulfillment workflow
- Channel manager and compliance-check configuration ready for your merchandising team
- Handover documentation, an admin walkthrough session, and a defined post-launch support window
Who this is for
Scaling Shopify fashion brand
A clothing or footwear brand on Shopify that wants to open Asos, Zalando and Decathlon channels without hiring a marketplace ops team or risking oversells on limited size runs.
Marketplace / e-commerce manager
The person responsible for channel growth who needs one place to control listings, pricing and stock across European fashion marketplaces instead of juggling three seller portals and spreadsheets.
Operations & fulfillment lead
Owns inventory accuracy and dispatch. Needs marketplace orders flowing into Shopify and tracking written back automatically so the warehouse keeps a single fulfillment process.
How Asos & European Fashion Marketplace Connector Compares
| Criterion | ECOSIRE | Custom Build | Competitor | Shopify Native |
|---|---|---|---|---|
| Tailored to your exact variant, size and metafield structure | Included | Included | Partial support | Not included |
| Available as instant self-serve install | Not included | Not included | Included | Included |
| Native support for Asos, Zalando & Decathlon fashion attributes | Included | Partial support | Partial support | Not included |
| Stock sync across channels using multi-location inventory + webhooks | Included | Included | Included | Not included |
| Order import + fulfillment tracking write-back to marketplace | Included | Included | Partial support | Not included |
| Image & content compliance pre-checks before submission | Included | Partial support | Partial support | Not included |
| No in-house developer required to build or maintain | Included | Not included | Included | Partial support |
| Lowest upfront cost | Partial support | Not included | Included | Included |
Frequently Asked Questions about Asos & European Fashion Marketplace Connector
Is this an app I can install instantly from the Shopify App Store?
No. This is a build-to-order connector. After purchase, ECOSIRE scopes your catalog, variant structure and marketplace seller accounts, then builds and installs a private Shopify app tailored to your store. There is no public App Store listing or self-serve download.
How long does delivery take after I order?
Typical delivery is around one working week depending on how many marketplaces you connect and the complexity of your variant and attribute mapping. We confirm a firm timeline during the scoping call right after purchase, before any build work begins.
What ongoing support and updates are included?
The build includes a defined post-launch support window for fixes, configuration tweaks and questions. Because marketplace APIs (Asos, Zalando, Decathlon) and Shopify's Admin API change over time, we offer ongoing maintenance so the connector keeps working — covered during the included window and available as a continued support arrangement afterward.
Which marketplaces and which Shopify plan do I need?
It targets Asos Marketplace, Zalando and Decathlon, and the build can be scoped to the specific marketplaces you sell on. You need an active Shopify plan that allows custom/private app installation and approved seller accounts on each marketplace; we verify these prerequisites during scoping.
How does it stop overselling the same item across channels?
All channels read from the same Shopify multi-location inventory pool. When an order lands on any marketplace or your storefront, inventory-level webhooks decrement the shared stock and propagate the new quantity to the other channels in near real time, so a single remaining size can't be sold twice.
Can it handle the different size and attribute requirements each marketplace demands?
Yes. A core part of the build is mapping your Shopify variant options and metafields (size, color, material, fit, etc.) to each marketplace's required attribute taxonomy, plus compliance pre-checks so listings aren't rejected for missing or malformed attributes.
Related Modules
Back-in-Stock Alerts
A custom-built Shopify app that captures demand on sold-out variants and sends automated email, SMS, and push notifications the moment stock returns. Built, installed, and supported by ECOSIRE.
Asos & European Fashion Marketplace Connector
A custom-built Shopify connector that lists products, syncs stock and prices, and imports orders between your store and European fashion marketplaces like Asos, Zalando and Decathlon. Built, installed and supported by ECOSIRE.
- Two-way listing sync from Shopify products to Asos Marketplace, Zalando and Decathlon seller catalogs via their seller APIs
- Size, color and fashion-attribute mapping from Shopify variant options and metafields to each marketplace's required taxonomy
- Real-time stock synchronization across all channels using Shopify multi-location inventory and inventory-level webhooks to prevent oversells
- Per-marketplace price synchronization with configurable markup, rounding and currency rules