Google Calendar room booking
Rooms are where two systems disagreeing causes the most damage. If a room is booked in one place and the other does not know, somebody walks into an occupied room.
Keeping HybridHero and Google Calendar aligned is what stops that. Auto-release of unused bookings is part of the platform, so rooms held by a no-show go back into the pool. See meeting room management for how rooms are set up, and the glossary entry on calendar integration for the general pattern.