Marketplace
How to sell on Zalando: requirements, models and costs
Partner Program or ZFS, the official requirements (VAT, EAN, EPR, logistics), the onboarding stages and the costs to model before you start.
Read the article →Zalando onboarding
Selling on Zalando: a guide to uploading products and fixing the errors that stall you.
Published
Opening your own sales channel on Zalando is a real inflection point for a fashion brand: Europe's leading platform, and visibility in front of millions of active shoppers. But Zalando is a complex machine with strict quality standards, and I regularly see brands stuck for weeks, sometimes months, in onboarding, catalogue on hold because of technical errors that look indecipherable from the outside.
zalandofeed-managementonboarding
How to upload products to Zalando: your options
zDirect UI (ZFS only)
zDirect is Zalando's partner portal: every partner uses it for account, markets and performance. But creating articles by hand in the interface is only available if you use Zalando's logistics (ZFS), and it's meant for assortments of up to 200 articles per season. If you ship yourself, you need an integrator or the API.
Third-party integrators: Tradebyte, Lengow, Channable
Once you're managing thousands of SKUs, integrating through one of these is close to mandatory. They map your data to exactly the fields Zalando requires, instead of you doing it by hand for every field change.
Direct API connection
For companies with a structured IT department that want full control over the data flow, without going through an intermediary tool.
Why "copy and paste" doesn't work here
Every time I onboard a new brand onto Zalando, I see the same assumption: that the catalogue data that works fine on your own site will just work on Zalando too. It won't, for two main reasons.
- Size conversion. This is the hardest hurdle by far. Every market (Italy, Germany, France) has its own conventions, and every product category needs its own size chart. If the conversion isn't exact, the item gets rejected outright, because Zalando is protecting itself from the returns a wrong size inevitably generates.
- Image and content quality control. Zalando runs both human and algorithmic checks. A background that doesn't match the required RGB colour code, a logo that's too invasive, or a missing "material detail" close-up shot: any one of these can get an SKU blocked instantly.
Common errors, and how to actually fix them
- Missing mandatory attributes. Data like material composition or primary colour is simply absent from the feed. Fix: enrich the feed at the source (in your PIM or ERP) rather than patching it manually on the way out.
- EAN validation failed. The barcode isn't registered correctly, or it's duplicated across SKUs. Fix: check the code against the GS1 database and clean up your unique codes before re-submitting.
- Brand not authorised. Zalando hasn't approved the brand yet. Fix: open a support ticket and send the brand ownership documentation they require. This step alone can add weeks if it's not handled proactively.
"Uploading products to a marketplace looks like an administrative task from the outside. In practice it's technical and strategic optimization work: translating what your warehouse actually has into the language Zalando expects."
Why bring in a marketplace specialist
A lot of companies assume this is purely clerical work. It isn't. Resolving a validation error on zDirect, or configuring Tradebyte correctly the first time, is what determines your time-to-market. Get it wrong and you wait months to see products go live. Get it right and it's a matter of days, and every week of delay is a week of visibility and sales you don't get back.
Selling on Zalando is a marathon, not a sprint. But how you run the first mile, the technical precision of the initial onboarding, is what determines how the whole race goes.