title: Authenticate the Test User { "error_type": "OAuthException", "code": 400, "error_message": "Invalid platform app" }
body: <p>I'm trying to recover the access token via the Instagram Basic Display API but when trying to authenticate the test user I get this error:</p>
  
  <pre><code>{
      "error_type": "OAuthException",
      "code": 400,
      "error_message": "Invalid platform app"
  }
  </code></pre>
  
  <p>I expect to see the app authorization screen</p>