Settings → Google Calendar, then connect and authorise.
Once connected, your bookings appear in the calendar you choose, so staff who work from Google Calendar see pickups and returns next to everything else in their day.
It is a convenience rather than a replacement. Coming up and the fleet calendar show things Google Calendar cannot — vehicle allocation, transfers, what is overdue.
If it did not work
- Events are not appearing. Check the connection is still authorised and that you picked the right calendar.
- You want it off. Disconnect here; existing events stay where they are.