Question: What must you first obtain and then add to your OAuth flow (once the authorization expires)?
- Access token
- Restart token
- Refresh token
- Return token
Explanation
A refresh token is used to request a new access token after the current authorization expires. In Amazon Ads authorization flows, access tokens are short-lived and should not be treated as permanent credentials. The refresh token allows the application to continue authorized API access without requiring the user to complete the full authorization process again. This keeps Amazon Ads API access controlled while supporting ongoing integration activity. The refresh token must be stored securely because it can be used to obtain new access tokens.
Why the other options are incorrect
Access token This is used to make authorized API requests, but it expires and must be renewed.
Restart token This is not a standard OAuth token type.
Return token This is not a standard OAuth token type.
Source for verification
https://advertising.amazon.com/API/docs/en-us/guides/account-management/authorization/access-tokens
https://developer.amazon.com/docs/login-with-amazon/authorization-code-grant.html
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