This email is sent to the client when the staff member has made an appointment on his/her behalf from the staff login. The staff member can create an appointment either by going to Main->Setup One Time Appointment, Main->Setup Recurring Appointments, or Main->My Calendar and double clicking on an available time period.
Default Template Text:
To: %CLIENT_EMAILADDRESS%
...
To cancel your appointment before the scheduled time, please click here
Received Email Screenshot: