portal.yourcompany.commakes it much easier for your clients to find your portal. Don't forget to add a link to your portal from your main website. 7. Last but not least, invite your customers, team or partners to join you in your app Send out an email to your customers telling them they can log in to your new portal if you have added them through a 'User List'. All they'll need to do is enter their email on the login page.