OTTO Partner Connect (OPC) is the seller portal of OTTO Market. In it you manage products, orders, returns, payouts, metrics, booked advertising and customer enquiries. This guide covers the areas of the portal and the question of which figures you still have to add yourself for a profit calculation.
At a glance
- What OPC is: the portal for registered OTTO Market partners
- What OPC covers: products, orders and returns, payouts, metrics, services and advertising, customer enquiries
- What OPC cannot know: your purchase prices and your own shipping costs, so no contribution margin per item either
- Ad data: for Sponsored Product Ads, OTTO documents a reporting interface with daily figures per campaign and item
What OTTO Partner Connect is
OTTO describes OPC as the portal for its partners and a central building block of the marketplace. Once you are approved as a seller, you receive your login details by email after registration and set up two-factor authentication at your first login. The next steps of onboarding then follow in the portal: company and seller details, contract, identity verification, shipping settings and your first products.
OPC is a tool for sellers, not the shop for consumers on otto.de. The fees for selling, meaning base fee, commissions and booked services, are covered in the article on OTTO Marketplace fees 2026. How you get products and stock to OTTO technically is explained in OTTO Market integration: which connector fits your setup?. For a short definition, see the glossary entry OTTO Partner Connect (OPC).
Feature overview: the main areas
OTTO names six tasks for OPC. The table follows that split; menu names in the portal may differ and can change with updates.
| Area | What it is for |
|---|---|
| Products | Create products, maintain stock |
| Orders and returns | Overview of orders, shipped products and returns |
| Finance | Upcoming and past payouts, settlement documents |
| Analytics | Revenue and further metrics; according to OTTO's onboarding guide an overview plus the areas SLA rates, controlling, customer behaviour, product data analysis and logistics |
| Services and advertising | Book additional services and advertising, such as Sponsored Product Ads (SPA) and Sponsored Display Ads (SDA) |
| Customer enquiries | Read and answer enquiries from customers |
On top of that there is the partner helpdesk with OTTO's help articles. OTTO itself points out that the helpdesk articles are more current than overview documents such as the onboarding guide. If a statement here and in the helpdesk differ, the helpdesk applies.
Data freshness: reports are not a live picture
OTTO does not state a fixed refresh cycle for the analytics in OPC on its public pages. So check the data timestamp each view shows before you compare figures or adjust campaigns.
For ad data the limit is documented: the reporting interface for Sponsored Product Ads returns figures for the last 90 days, excluding the current day. When pulling data through this interface, we also see that a day's costs are settled after a few days, while the revenue attributed to the ads keeps coming in for several weeks. Anyone judging yesterday's ROAS is judging a provisional figure.
In profitkonsole, OTTO orders and invoices are synced every 30 minutes, and advertising costs once a day after OTTO's daily close. The status of every sync is visible in the app.
Ad costs per item: what OPC shows and what the interface delivers
You book and manage advertising in OPC. For an item-level calculation, though, a campaign total is not enough. You need the costs per day and per advertised item, so that they land in the same period as the sales, even if a campaign was paused in between.
That is exactly the breakdown OTTO describes in its public API documentation for Sponsored Product Ads Reporting: impressions, clicks, costs and attributed sales per date, campaign and SKU. For Sponsored Display Ads, we found no comparable reporting interface in the same documentation on 17 September 2026.
One limitation remains: an item is advertised, not each individual variant. When someone clicks the ad, they choose size or colour only afterwards. So there are no costs per variant; if you need them, you have to spread the costs of an advertised item across its variants.
How profitkonsole picks up ad costs
profitkonsole pulls SPA costs through this interface every day, provided your connection to OTTO includes access to ad data. The costs of an advertised item are spread across its variants and included in the contribution margin. SDA budgets and deals you enter yourself. More on this, with a break-even calculation, in the article on OTTO SPA and SDA.
What OPC does not show as a ready-made metric
OPC knows everything that runs through OTTO: sales, returns, fees, payouts, ad bookings. What happens outside OTTO, the portal cannot know. That determines which figures you have to add yourself:
- Contribution margin per item: for this, OTTO lacks your purchase prices, your shipping and packaging costs and the costs of handling your returns. How the calculation is built is explained under calculating contribution margin.
- Return costs in euros: a return rate does not yet tell you what return shipping, inspection and goods that can no longer be sold at full price have cost.
- Advertising costs in the item result: in OPC, advertising sits in its own views. In an item-level calculation it has to be assigned to the item and the period.
- Results across several channels: OPC shows your OTTO business. If you also sell on other marketplaces or in your own shop, those figures live elsewhere.
Which OPC metric comes from where, what it is missing and how you take it further yourself is shown in the article OTTO Partner Connect KPIs.
How OPC settles fees
OTTO offsets costs and revenue through a clearing account: sales revenue, shipping charges, refunds for returns and fees such as commission and base fee. According to OTTO, the balance is paid out weekly on Thursdays with a due period of 14 days. You find the settlement documents in the Finance area; the onboarding guide names PDF and CSV files for this.
The payout is therefore not your revenue for a period: it bundles items that are due, including fees and refunds. For the profit calculation you separate the fees again: commission belongs to the individual item, the base fee of EUR 99.90 a month does not. It flows into the contribution margin of the period pro rata. Rates, base fee and tiered commissions with a worked example are in the article on OTTO Marketplace fees 2026, the terms in short in the glossary under OTTO commission and OTTO base fee. Your OTTO settlement always remains the authoritative source for your bookkeeping.
How sellers fill the OPC gaps
For a profit calculation per item there are essentially two routes:
- Your own spreadsheet: download documents and exports from OPC, combine them with purchase prices, shipping costs and advertising costs, and maintain the calculation logic yourself. It works, but every item, every return and every campaign adds upkeep.
- A controlling tool such as profitkonsole: you install the profitkonsole app in OTTO Partner Connect; your OPC password stays with you. Orders, invoice amounts and SPA costs are imported, and you add purchase prices, shipping profiles and further costs. The result is contribution margin per item, reports by brand and a profit and loss view.
Whether that fits your setup, you can try free for 14 days. More on what it covers for OTTO is on the page profitkonsole for OTTO.
Frequently asked questions about OTTO Partner Connect
What is OTTO Partner Connect?
OTTO Partner Connect (OPC) is the portal for registered OTTO Market partners, available at portal.otto.market. There you manage products and stock, see orders, returns and payouts, find revenue and other metrics, book services and advertising, and answer customer enquiries.
How up to date is the data in OPC?
OTTO does not publish a fixed refresh cycle for the analytics; what counts is the data timestamp each view shows. The reporting interface for Sponsored Product Ads returns the last 90 days, excluding the current day.
What does OTTO Partner Connect cost?
OTTO lists the monthly fee, commission on products sold and booked services such as advertising as the costs of the marketplace. A separate fee for the portal is not listed there. OTTO offsets these amounts against your revenue.
Is there an interface for OTTO ad data?
Yes, for Sponsored Product Ads. At api.otto.market, OTTO documents interfaces for campaigns and a reporting interface with impressions, clicks, costs and attributed sales per day, campaign and SKU. For Sponsored Display Ads, no comparable reporting interface was described there on 17 September 2026. profitkonsole pulls SPA costs through it every day; SDA budgets you enter yourself.
Which documents do I get from OPC?
OTTO provides documentation for every payout; according to the onboarding guide as PDF and CSV, by email and in the Finance area. The documents show revenue, refunds and fees. Purchase prices and your own shipping costs are not included, because OTTO does not know them.
What does OPC not show that sellers need to calculate profit?
Contribution margin per item, return costs in euros and advertising costs within the item result. OTTO lacks your purchase prices, shipping and return costs for that. You calculate it in your own spreadsheet or add the costs in a tool like profitkonsole.
Bring OPC data and your own costs together
profitkonsole imports orders, invoice amounts and SPA costs from OTTO and sets them against your purchase, shipping and return costs: contribution margin per item, advertising costs in the item result, reports by brand and a profit and loss view. Try it free for 14 days.
Further reading
- OTTO Partner Connect KPIs: data source, gap and calculation · which figure comes from where and what you need to add
- OTTO advertising costs 2026: SPA, SDA and the Marketing API · checking ad costs against contribution margin
- OTTO Marketplace fees 2026 · base fee, commissions and a worked example
- Sellerboard for OTTO? The profit analytics alternative for otto.de · why sellerboard does not cover OTTO and what to use instead
- Calculating contribution margin · formula, levels and an example with returns and advertising
- profitkonsole for OTTO · connection, data sources and reports