Connecting to the OTTO marketplace: API, ERP and multichannel tools

Option 1: Partner Connect by hand

In the OTTO Partner Connect seller portal you manage products, stock, orders and returns directly. For a small range that is enough. With many items or several sales channels, manual work quickly becomes the bottleneck – mainly because stock must match across all channels. The portal is described in OTTO seller portal: login and support.

Option 2: the OTTO Market API

The official documentation at api.otto.market is aimed at sellers integrating themselves and at service providers integrating for sellers. It describes interfaces for, among others:

• products and availability (stock)
• shipping profiles
• orders and shipments
• returns and return shipments
• receipts and post-sale price reductions

Access uses credentials you create in Partner Connect, with separate permissions per area.

Option 3: tools with a ready-made OTTO connector

If you already use an ERP or multichannel tool, check its OTTO connector first. We verified:

• plentymarkets / PlentyONE: according to its manual, stock and orders sync every 15 minutes, items and prices once a night.
• Tradebyte: describes itself as an official full-service partner of OTTO.
• Lengow: offers an OTTO integration.
• Xentral: has its own OTTO connector.

For Shopify there are third-party apps; we found no Shopify app built by OTTO. For JTL we found only third-party connectors.

What to look for when choosing

1. Stock sync: how often is stock sent? Infrequent syncs cause overselling and cancellations – a risk for your account, see OTTO terminating sellers.
2. Shipping and tracking: are tracking numbers reported to OTTO automatically?
3. Returns: do returns reach your system automatically?
4. Approvals: newer connections need a service-provider approval in Partner Connect.

Common integration mistakes

• Wrong environment: sandbox credentials don't work in production – and vice versa.
• Missing permissions: each interface needs its own permission, service providers also need an approval.
• No shipping profiles: without them OTTO can't show a delivery time.
• Stock synced only at night: for fast-moving items this causes overselling.

Test the integration with a few items first before transferring your whole catalogue.

After connecting: check visibility

A clean integration gets your products onto otto.de – whether shoppers find them is a second question. After launch, check where your key products rank for which search terms. MarktRank reads your catalogue read-only via the products permission; more in OTTO Partner Connect: connecting your products via the API.

Check your products' position on marktrank.de – 5 products free, without an account.

Frequently asked questions