How do I set up MargenOptimierer?
Last updated: 2 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.
Setup has two steps. First you set your targets, then you connect your OTTO account. MargenOptimierer then fetches your data from OTTO and keeps it up to date every night.
How it works
- On the first page after you register, click Los geht's (let's go).
- Enter your ad target, your target margin and your target return rate. If you'd rather calculate with ROAS, switch from ACoS to ROAS in the ad target tile. You can't continue without all three targets.
- Click Speichern und weiter (save and continue).
- Click Mit OTTO verbinden (connect to OTTO).
- Sign in to OTTO and confirm the connection, as described in How do I connect my OTTO account?
- After you return from OTTO, click Zur Übersicht (to the overview).
Example: Three targets for your account
Say you want your ads to cost at most 20% of their ad revenue. You want 15% of your revenue left after all costs per sale. At most 8 of 100 units sold should come back. You then type 20, 15 and 8 into the three fields. The percent sign is already there. You can change the targets at any time later, as described in How do I set my targets?
If setup stalls
You can't connect to OTTO yet
In that case a sentence giving the reason appears instead of the connect button. You can still set your targets. What the sentence means is explained in How do I connect my OTTO account? If you have the Nur lesen (read only) role, an Admin or a Mitarbeiter (staff member) in your company sets up both steps.
Erst mal umsehen (look around first)
With Erst mal umsehen (look around first) you enter the app without finishing setup. The Übersicht (overview) then shows at the top which step is still missing. Until your targets are set, MargenOptimierer doesn't assess your numbers.
Until your data is there
MargenOptimierer fetches the first data right after you connect. The Deine Daten kommen (your data is coming) card on the Übersicht shows what's already there. Once items, campaigns, ad numbers, orders, receipts and returns have arrived, every Admin in your company gets the email „Deine Zahlen sind da“ (your numbers are here). How MargenOptimierer fetches older orders is explained in How do I connect my OTTO account?
Next
- How do I connect my OTTO account?
- How do I get started with MargenOptimierer?