> For the complete documentation index, see [llms.txt](https://docs.stacksync.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stacksync.com/two-way-sync/connectors/amazon-seller-central/authorize-amazon-seller-central.md).

# Authorize Amazon Seller Central

{% hint style="info" %}

#### Prerequisites:

1. Primary account access to Amazon Seller Central
2. An SP-API app in Amazon Developer Central
3. Required credentials: LWA client ID/secret, application ID, Merchant ID/Seller ID, refresh token.
   {% endhint %}

## Setup instructions

#### STEP 1: Find merchant token

1. Sign in to your [Amazon Seller Central account](https://sellercentral.amazon.com/).
2. In the top-right corner, open **Settings** and select **Account Info**.
3. In the left navigation, select **Business Information**.
4. Click **Your Merchant Token**.
5. Copy the Merchant Token for the marketplace you plan to sync and keep it for connector setup.

#### STEP 2: Create an SP-API app client

1. Sign in to your Amazon Seller Central.
2. Go to **Apps and Services > Develop Apps**.
3. In Developer Central, click **+ Add new app client**.
4. Enter an **App name**.
5. Set **API Type** to **SP API and Select Production in the dropdown.**<br>

   <figure><img src="/files/sFfzq9N8RVD0RrBiIivo" alt=""><figcaption></figcaption></figure>
6. Under **Business entities supported**, select your entity:
   * **Sellers**
   * **Vendors**
7. Assign the required roles for your entity.

For **Sellers**, select:

* Finance and Accounting
* Selling Partner Insights
* Buyer Communication
* Pricing
* Inventory and Order Tracking
* Brand Analytics
* Amazon Fulfillment
* Buyer Solicitation
* Product Listing

For **Vendors**, select:

* Brand Analytics
* Amazon Fulfillment
* Product Listing

8. In **Restricted Data Token (RDT)**, select:\
   **Yes, I will delegate access to PII to another developer's application**.
9. Click **Save and exit**.
10. In the app list, click View for your app.
11. Make a note of the Client identifier and Client secret, and then click Done. You will need them to configure Connection on Stacksync.<br>

    <figure><img src="/files/YqepNutRaotQq9mJGezP" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Do **not** set an OAuth Login URI or OAuth Redirect URI for this setup.
{% endhint %}

{% hint style="info" %}
Amazon sets a 6-month expiration on client secrets. To avoid sync interruptions, regenerate the client secret every 6 months and update the connection to use the new secret.
{% endhint %}

#### STEP 3: Generate refresh token

1. In Developer Central, open your app’s action menu and select **Authorize**.
2. In **Add Authorizations**, click **Authorize app** for the marketplace you want to sync.
3. Copy and securely store the generated **Refresh Token** for use during Stacksync configuration.<br>

   <figure><img src="/files/AK42YpGiucuhpEKfflwA" alt=""><figcaption></figcaption></figure>

#### STEP 4: Finish Stacksync Connection configuration

1. Login to [Stacksync](https://app.stacksync.com/) -> **Create Resource** -> **Connections** -> Select **Amazon Seller Central**<br>

   <figure><img src="/files/uAQTcN9vbSIes84wdEG3" alt=""><figcaption></figcaption></figure>
2. Enter the connection details collected in the previous steps into the form.\
   a. Client ID\
   b. Client Secret\
   c. Merchent Token\
   d. Select Production / Sandbbox Account\
   e. Refresh Token\
   f. Select the Region where the App is created in previous steps<br>

   <figure><img src="/files/a5XjRZMOUqHvQmpRzdFj" alt=""><figcaption></figcaption></figure>
3. Click **Next**, then **Authorize Connection** to complete setup.

The connector is now ready to start syncing data.

If you have any questions or run into any blockers, reach out anytime at <hello@stacksync.com> and the Stacksync team will be happy to help.