Instructions for Google Calendar
For venue-level syncing, click into Venue Settings > Integrations. Copy the iCalendar link.
For user-level syncing, click into the 'My Profile' area. Copy the iCalendar link.
From here go into your Google Calendar account. Click the down-arrow next to 'Add calendar'. Select From URL from the menu. Paste the link here.
Once added, Google Calendar will automatically fetch updated booking information from Skedda periodically. In the particular case of Google Calendar, note that this refresh interval can be of the order of a few hours (something that's dictated by Google Calendar and that Skedda cannot control).