The two types of notifications sent are: User notifications and Venue notifications.
Venue notifications send an email to the venue's nominated email address when a non-admin user:
- creates a booking, or
- cancels a booking
(Note specifically that these venue-directed notifications do not fire if an admin creates/cancels a booking, because it's assumed that the fact that an admin is taking the action is representative for the venue knowing about the action)
User notifications send an email to the user's email address when an admin:
- manually adds them as a venue user
- makes a booking on their behalf
- modifies one or more of their bookings
- cancels one or more of their bookings
These notifications can be enabled and disabled in the Venue Profile > Notifications section.