How can I give a group member login access to the app?

A user wants to get login access to the app

If a member in your group wants to get access to the app, they first need to
have a userid – or in other words, login credentials.

As user id can be a phone number or a email address

If the user has added phone or email, they can download the app, and press create profile and use the “forgot password” link. If they enter their userid (either phone number or email), they will receive a one time code, that they can use to log in.