OTTO Partner Connect: connecting your products to a tool via the API
To connect your OTTO catalogue to a tool such as MarktRank via the API, create a self-app with the "products" scope in OTTO Partner Connect under Settings → API access, copy the client ID and client secret, and enter both in the tool. OTTO shows the secret only once – copy it straight away.
What is OTTO Partner Connect?
OTTO Partner Connect is the portal and interface for sellers on OTTO Market (portal.otto.market). Through its API, sellers can connect their own systems or tools, for example to transfer their product catalogue.
Do you need the API at all?
Not necessarily. In MarktRank you can also add products by otto.de link or product ID – without any API access. The API is the fastest way to bring in a large catalogue with SKUs and EANs.
Step by step: setting up the API connection
- Log in to OTTO Partner Connect → Settings → API access.
- Create a self-app with the products scope.
- Copy the client ID and client secret. OTTO shows the secret only once.
- In MarktRank click Connect OTTO API, choose Production (Live), paste both values and save. The connection is tested on the spot.
- Click Import / sync products now. Your catalogue arrives with SKUs, EANs and, where OTTO provides it, the otto.de link.
Sandbox or production?
Credentials created on the Sandbox tab of Partner Connect only work when "Sandbox" is also selected in the tool. For your real catalogue you need credentials from Production (Live).
Is it safe?
Only grant the scope a tool really needs. MarktRank needs only products, uses it to read your product list and never changes anything in your OTTO account. Secrets are stored encrypted, only used to read the catalogue and never shown again – not even to your team.
If the connection fails
- Check that the app has the products scope.
- Check that "Production (Live)" or "Sandbox" matches where you created the credentials.
- Lost the secret? You can create a new one in Partner Connect.
Agencies: connect each client's OTTO account inside that client's own project. Details are in the setup guide.
Frequently asked questions
Can a tool with the "products" scope change my listings?
MarktRank uses the access only to read your product list and changes nothing in your OTTO account.
I lost the client secret. What now?
Create a new secret in OTTO Partner Connect and enter it in the tool again.
Do I need the API to use MarktRank?
No. Manual entry works for every seller without API access. The API is just the fastest route for large catalogues.
Sources
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