Please go to Intuit Developer page https://developer.intuit.com/ , create an application in the My Apps menu, and in the line 22 set the client_id to Consumer Key and client_secret with Consumer Secret. The Callback URL must be http://18.142.0.193/webmail/modules/OAuthIntegratorWebclient/Classes/OAuthClient/login_with_intuit.php If you want to post to the user timeline, make sure the application you create has write permissions