Why didn't the automatic email go out? Premium
This feature is part of the Premium plan.
Check Settings, Automatic email, Email sends: the Waiting tab shows what is waiting to send or for your approval, the Sent tab shows what went out and why something was skipped.
The usual reasons: the master switch is off; the student has no email address or unsubscribed; the event happened before you switched it on, since no email ever goes for an old event; the student already got the same template within 14 days; the template is in Ask me first mode and the suggestion is waiting in your notifications; or it is due between 9 pm and 8 am, when it goes at 8 am.
Tip: Automatic email is available on the Premium plan.