Once connected to a Google Calendar, all new appointments will be added to the calendar. This does not work retroactively, so if the connection is established after the employee already has a number of previously booked appointments, they will not be added to Google Calendar automatically. Simply editing and saving the appointment (without making any changes) will rectify this and store the appointment in Google Calendar.
If the employee changes the Google Calendar they are linked to, the appointments previously added to the old calendar (as Google Events) will not automatically be transferred to the new calendar.
Google Calendar Integration can only block events coming from a linked Google Calendar if those events are saved as Busy. If an event is not blocked in Unity Bookings, make sure that it is pulled from the correct calendar and edit the Google Calendar event to verify that it’s Busy rather than Free.
Currently, the Google Calendar integration is not a full 2-way sync, so moving an event created from Unity Bookings in Google will not move the appointment in Unity Bookings.
Similarly, if you delete the Google Calendar event in the employee’s Google Calendar, the appointment will remain intact in Unity Bookings.