2.0. How to connect Amazon Integration Addon to your Amazon Seller Account 

Follow these steps to regoster as a developer and get API key

To register as a developer (for private vendor applications)

1. Go to Vendor Central for your marketplace. See Vendor Central URLs for a list of URLs by marketplace.

2. Sign in using the credentials for the Vendor Central account with the vendor group that you want your application to access.
   For more information about vendor groups, see About Vendor Groups.

3. In the Integration menu, click API Integration.
   The Developer Central page appears.

4. If you have not yet completed a developer profile for this vendor account, click Proceed to Developer Profile. Otherwise click the Your Developer Profile link.

5. Complete the form. In the Data Access section, in the dropdown box, select My organization sells on Amazon, and I only want to integrate to manage my own business only.

To register your application (for private vendor applications)

1. Sign into Vendor Central with the credentials that you used to register as a developer.

2. In the Integration menu, click API Integration.
   The Developer Central page appears.

3. Click Add new app client.
   The App registration page appears.

4. Complete the form.

To self-authorize your application (vendor application)

1. Sign into Vendor Central using the credentials that you used to register as a developer.

2. In the Integration menu, click API Integration.
   The Developer Central page appears.

3. For the application that you want to authorize, click the arrow next to the Edit App button, and then click Authorize.
   The Authorize application page appears.

4. Click Generate refresh token.
   Your Login with Amazon (LWA) refresh token appears. If you click Generate refresh token again a new refresh token is generated. Generating a new refresh token does not invalidate previous refresh tokens.
   Note. If your selling account is merged with accounts from other regions, you will receive a separate refresh token for each region. Your application is now authorized to access your selling account(s).

An LWA refresh token is a long-lived token that you exchange for an LWA access token. An access token obtained through this token exchange must be included with calls to all Selling Partner API operations except restricted operations and grantless operations, which use somewhat different authorization models. After an access token is issued it is valid for one hour. The same access token can be used for multiple API calls, until it expires.

To exchange a refresh token for an access token using a generated SDK, see Connecting to the Selling Partner API using a generated Java SDK. To manually exchange a refresh token for an access token, see Connecting to the Selling Partner API.