Tableau Unable to Sign In through portal Sign in failed. For help, contact your Tableau Server administrator. {"result":{"guest Enabled":false,"embedded VizForSite Saml Supported":true This happens as the portal from which Tableau is being called as open in new web page. Instead use the tableau report/dashboard in an iFrame, which should take care of the issue. When you embed Tableau Server views into web pages, everyone who visits the page must be a licensed user on Tableau Server. When users visit the page they are prompted to sign in to Tableau Server before they can see the view. If you already have a way of authenticating users on the webpage or within your web application, you can avoid this prompt and save your users from having to sign in twice by setting up trusted authentication. Trusted authentication simply means that you have set up a trusted relationship between Tableau Server and one or more web servers. When Tableau Server...