True or false? The OAuth endpoint expects the form/urlencoded format instead of JSON.

The statement is true because the token request body is sent as application/x-www-form-urlencoded , not as a JSON payload. In Amazon Ads authorization workflows, Login with Amazon handles OAuth-based token exchange for API access. The token endpoint expects request parameters such as grant type, authorization code, client ID, and client secret in form-encoded format. A successful token response can return JSON, but that does not mean the request body should be JSON. Using the wrong request format can cause the authorization request to fail.