Hello, I have been with troubles making soft things… in my case, I am trying to determinate age of my users with “Data” function form and show screen depending answer (like my picture).
If a user is less than 18+, show a Modal Screen according with data. And if they are more than 18+ years old… keep sign in.
I did two “click action” to make fuction with screens links, but when I try function in “preview”… it doesn’t work when user is more younger (or less than 18+).
As far as I know, conditional actions do not always work correctly right after user signup or login.
So what you could do is to add a link to a new “blank” screen, and then have 2 actions there (on-screen-enter):
one is conditional to your pop-up data validation
other one is a link to next screen in the app.
You’ll need to experiment with transitions and this “interim” screen background transparency to make it look nice.
Just a note - information in my reply is not related to Apple’s guidelines; it is an answer to your trouble with conditional action depending on user’s birthday