Push notifications are alerts sent directly to the app — separate from the email, SMS and WhatsApp messages covered in Message templates. They aren't composed or switched off per template: either an event triggers one or it doesn't, and they only reach someone who has the relevant app installed and is signed in.
To clients (Bobclass Go)
A signed-in client gets a push notification when:
Their booking is confirmed
Their session is rescheduled
Their session is cancelled — whether they cancelled it themselves or you did
A spot opens up in a full class that has clients on the waitlist — see Waitlist management
Ordinary activity that doesn't need your attention — a booking that goes straight onto the calendar because Requires approval is off, or an ordinary cancellation with nobody waiting for the spot — does not push to you. It's logged quietly in your Inbox Timeline instead, so nothing is lost but your day isn't interrupted for things that don't need action.