This function is used to create a token that can be used to sign a customer in to the hosted portal pages and skip the login. This will return a string that is the single use token. To link a portal page, append the token to the desired destination portal URL i.e https://yourpagename.mybillsystem.com/ManagedPortal/Home?token=846aeef5-3512-42f3-b2e0-4f6989e9163c Where 846aeef5-3512-42f3-b2e0-4f6989e9163c was the returned token. If a previous token has been issued and not used that token will be invalidated upon creation of the new token. Additional details on SSO can be found here: https://developer.staxbill.com/docs/single-sign-on-sso