Configure Passport App on the Authentication Server so you can use it to perform OOB registration and authentication.
Add Passport App to the Authentication Server
Refer to section Configure Apps.Configure your app for OOB and push notification
OOB requires configuring the Authentication Server and, if you use push notifications, using Apple Push Notification service (APNs). See Configuring Out-of-band Authentication.Configure to support Universal Links
Support for Universal Links in your customized Passport App requires changes to the website and web application components of your server-side infrastructure. See Processing QR Codes Using the Camera App.