Check your OTTO Market partner account
- Make sure you have an active OTTO Market partner account — OTTO requires a company registered in Germany or another approved EU country, a valid VAT ID, German-language customer service and shipping from a German or EU warehouse.
- Confirm your return warehouse address and return carrier (DHL, GLS or Hermes) are configured in OTTO Partner Connect under Shipping and Returns — OTTO generates customer return labels from these.
Connect OTTO in Huup
- Sign in to app.huup.com.
- Open Integrations → Marketplace, click Add New Marketplace, pick OTTO Market.
- Install the Huup app in OTTO Partner Connect using the invitation link we provide, and grant access to the requested scopes (OTTO requires all scopes to be granted together).
- Click Connect to OTTO in Huup and sign in with your OTTO Partner Connect account to authorise.
- Huup links your installation and starts ingesting orders and your existing assortment.
What syncs after you connect
SKU-keyed product publishing with categories, attributes, brand mapping, variants and GPSR product-safety data.
Real-time stock pushes and EUR price updates with German VAT classification handled for you.
Orders ingest with position items and addresses; dispatch pushes carrier, tracking and the German return-label tracking number OTTO requires.
Announced and misdirected returns flow into Huup; accept or reject with reason codes from one tab.
Every submission is tracked through OTTO's asynchronous validation to ONLINE on otto.de, with rejection details surfaced.
OTTO's approved brand list syncs daily; products map to usable brand IDs automatically.
Common issues
Product rejected: EAN not accepted
OTTO requires a globally unique EAN for every SKU and rejects EANs starting with 2 (in-house barcode range). Use the manufacturer's EAN.
Product stuck in "pending" after publish
OTTO validates products asynchronously in two stages. Huup tracks both and marks the listing live only when otto.de shows it ONLINE — allow up to a few hours for OTTO's content checks on first submission.
Brand not available
OTTO only accepts brands from its approved catalogue. If your brand is missing, request it via OTTO Partner Connect's brand creation process, then re-publish from Huup once approved.
Dispatch rejected: missing return tracking number
For parcel deliveries OTTO requires a German return-label tracking number (DHL, GLS or Hermes) at dispatch. Create the return label in your carrier account without printing it, and enter its tracking number in the Huup dispatch form — unused labels are free.
New orders have no customer address
Orders awaiting payment confirmation arrive without a delivery address — this is OTTO's ANNOUNCED state. The address appears when the order becomes processable; Huup holds dispatch until then.
Access revoked notice
If access was revoked in OTTO Partner Connect (Servicepartner → Zugriff entziehen), click Re-connect in Huup and authorise again.