Class Reminder Emails
Automatic, and opt-out by member
How reminder emails are scheduled, and what it takes for them to actually send.
How it works
A booked member automatically receives a reminder email a set number of hours before their class starts -- no setup needed per class. A member can turn email reminders off entirely from their own account, under Communication Preferences, or an admin can turn a specific member is reminders off for them (useful if a message bounced).
What has to be true for it to send
Outbound email needs to be configured on your site (see Email Settings in Site Settings & Billing) -- this is on by default on Your Shop Space, using the shared, verified sending address. If reminders ever seem to stop, that is the first thing to check.