There are two ways to login to the new portal. You can use your email address and a portal password or you can simplify your life and use the “Sign in with Microsoft” button.
Sign in with Microsoft
If you are an Office365 or ADFS user you can use the “Sign in with Microsoft” button to login. This is the recommended method as it does not require you to remember another password and future logins will be faster. If you do not have Office365 or ADFS but have a Microsoft account using your work email address then you can still use this login method.
If you are not an Office365 or ADFS user, or you simply want a separate password for the helpdesk portal then this is the method for you. You will need to setup your password the first time by clicking on the “Forgot your password?” link. After resetting your password you can login using the new portal.