> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arbitrageone.de/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I connect my Amazon account to ArbitrageOne?

> Connect your Amazon Seller Central account to ArbitrageOne via SP-API.

## Short description

With the Amazon SP-API connection, ArbitrageOne reads your sales, fees, inventory and orders directly from Seller Central. Without this connection, ProfitTracker, Purchase Analysis and almost everything around Amazon data won't work.

> **ℹ Note:** An **Amazon Seller Account** (Seller Central — for **selling** on Amazon) is **not the same** as an **Amazon Business Account** (B2B **purchasing** on Amazon Business). Both are connected separately in ArbitrageOne. This article is about the **Seller Account**.

## Requirements

* Active **Amazon Seller Central** account (not to be confused with Amazon Business)
* Your account must be **Professional** (not Individual)
* Access to the Seller Central region you want to connect

## Step-by-step guide

### Step 1: Open the marketplace page

→ Open directly in the app: [app.arbitrageone.de/apiconnections](https://app.arbitrageone.de/apiconnections)

In the menu under **Settings → API connections** you'll find your marketplace dashboard with the Amazon card.

<img src="https://mintcdn.com/arbitrageonegmbh/MDvY_5lLN7DHw2E8/articles/erste-schritte/images/amazon-konto-verbinden-01.png?fit=max&auto=format&n=MDvY_5lLN7DHw2E8&q=85&s=719cdd0f225c5736136cc91e9bde11fb" alt="" width="530" height="296" data-path="articles/erste-schritte/images/amazon-konto-verbinden-01.png" />

### Step 2: Open the connection page and authorize

→ Open directly in the app: [app.arbitrageone.de/oauth-amazon](https://app.arbitrageone.de/oauth-amazon)

Click the Amazon card — the **Edit Amazon connection** page opens. Here you'll find the **Authorize now** button (or **Re-authorize** if already connected).

> **⚠ Important:** Before that, make sure the **processing report language is set to English (US)** — otherwise the SP-API can't read your reports. How to do that: [SP-API Processing Report Language](amazon-sp-api-processing-report-language).

<img src="https://mintcdn.com/arbitrageonegmbh/FCkSquCanRKwqqnE/articles/erste-schritte/images/amazon-konto-verbinden-02.png?fit=max&auto=format&n=FCkSquCanRKwqqnE&q=85&s=fd5c9389aee410419859784b16977cba" alt="" width="1085" height="370" data-path="articles/erste-schritte/images/amazon-konto-verbinden-02.png" />

### Step 3: Log in to Amazon and authorize

You'll be redirected to Amazon. Log in with your Seller Central credentials and confirm the permissions for ArbitrageOne.

<img src="https://mintcdn.com/arbitrageonegmbh/FCkSquCanRKwqqnE/articles/erste-schritte/images/amazon-konto-verbinden-03.png?fit=max&auto=format&n=FCkSquCanRKwqqnE&q=85&s=ac52b09ad9536d4cf4eacde69ac83800" alt="" width="903" height="1018" data-path="articles/erste-schritte/images/amazon-konto-verbinden-03.png" />

### Step 4: Back to ArbitrageOne

After authorization you're redirected back automatically. The green **connected** badge appears on the Amazon card and you see a success message.

<img src="https://mintcdn.com/arbitrageonegmbh/MDvY_5lLN7DHw2E8/articles/erste-schritte/images/amazon-konto-verbinden-04.png?fit=max&auto=format&n=MDvY_5lLN7DHw2E8&q=85&s=b3b4e7bd8ca701ed816a08c190d455b4" alt="" width="356" height="215" data-path="articles/erste-schritte/images/amazon-konto-verbinden-04.png" />

## Important notes

* After a successful connection, data imports start automatically in the background. The first full sync can take a few hours.
* The **processing report language** must be set to *English (US)* — see the linked article above.

## Common issues

**Issue:** "Amazon API error" after authorization
**Solution:** Make sure your account is **Professional Seller**. Try authorization again via **Re-authorize**.

**Issue:** After logging in to Amazon you land on an empty page
**Solution:** Disable blockers like uBlock Origin or third-party cookie blockers. Use Chrome or Edge in standard mode.

**Issue:** The card still shows "not connected" / no green badge after authorization
**Solution:** Wait 5 minutes (caching), reload the page. If it stays like that, check the *processing report language* in Seller Central and contact support if needed.

## Related articles

* [How do I set up my marketplaces and services?](marktplaetze-einstellen)
* [How do I configure my calculation basics?](kalkulationsgrundlagen-einrichten)