Trigger email when something has happened

I am trying to trigger an email when a user has not done anything but sign up or when the user has started a flow but did not finish it. However, I have not been able to connect the dots and build it.

I’m not entirely sure what you’re trying to do (do you mean you’re just trying to send an email when a User signs up?..)…

But, regardless, it should be very simple…

Where exactly are you getting stuck?