Overview
This article explains whether it is possible to enroll multiple Push Notifications for a single user account. For example, enrolling both Android and iOS devices using the same Push Notifications (MFA).
Solution
Enrolling multiple devices using the same factor, like multiple mobile devices enrolled into Push Notifications for the same user, is not possible with the built-in MFA flow using Auth0 universal login pages. It can be done via the MFA API. See Enroll and Challenge Push Authenticators for details on the MFA API.