How do I connect my OTTO account?
Last updated: 3 November 2026 · The MargenOptimierer app is in German. Button and menu names are shown exactly as you see them, with the English meaning in brackets.
To connect, you sign in at OTTO and confirm the connection there. You enter your OTTO password only at OTTO. MargenOptimierer then fetches your data from OTTO. At OTTO, MargenOptimierer only changes what you send to OTTO yourself.
How it works
- During setup, click Mit OTTO verbinden (connect to OTTO).
- Sign in at OTTO with your seller account.
- Confirm the connection to MargenOptimierer at OTTO.
OTTO then sends you back to MargenOptimierer. If it says there that your OTTO account is connected, you're done. After setup, you take the same route under Einstellungen (settings) in the OTTO-Verbindung (OTTO connection) tab. The button there is called OTTO-Konto verbinden (connect OTTO account).
Example: Connected on 1 September 2026
If you connect your OTTO account on 1 September 2026, the OTTO-Verbindung tab then shows 1 September 2026 under „Verbunden seit“ (connected since). MargenOptimierer fetches the first data right after you connect, starting with orders for the last 30 days. From the night before 2 September 2026, MargenOptimierer fetches your data again every night. It also catches up on older orders, going further back each night until 1 January 2025. Once all the data has arrived, every admin in your company gets the email „Deine Zahlen sind da“ (your numbers are here).
To get new data in between, click Daten von OTTO abrufen (fetch data from OTTO) in the OTTO-Verbindung tab.
If connecting doesn't work
A sentence instead of the button
The sentence says what you're waiting for. If you can't connect yet or the deadline for connecting has passed, you'll get an email as soon as you can connect. If it says „Dein OTTO-Konto lässt sich gerade nicht verbinden.“ (your OTTO account can't be connected right now.), click Support-Ticket schreiben (write a support ticket).
The connection is broken or didn't work
If you've already confirmed the connection at OTTO and haven't removed MargenOptimierer there, you don't have to start over. Click Verbindung abschließen (complete connection) in the OTTO-Verbindung tab. That also helps if the return from OTTO didn't work. MargenOptimierer recognizes your OTTO account, and your items, campaigns and costs are kept.
The OTTO account already belongs to another company
At MargenOptimierer, an OTTO account belongs to exactly one company. If the other company's subscription has ended or is blocked, or a payment is outstanding there, your OTTO account moves to your company with its data when you connect. It keeps its free trial, and there's no new one. The other company is billed for the days before you connect, and your company pays from the day you connect. Otherwise you'll see a notice after returning from OTTO, and you write a support ticket.
Next
- How do I enter purchase price and shipping costs?
- How do I switch between several OTTO accounts?