What are the different calendar connection options?

In this article, you'll learn about the differences between the various OnceHub calendar integrations

OnceHub connects to your personal calendar in real time. Busy time is automatically retrieved and bookings are created directly in your calendar. OnceHub has calendar integrations with Google Calendar, Office 365 Calendar via EWS, Office 365 Calendar via OAuth 2.0, Exchange Calendar, and iCloud Calendar.

Integration differences

There are some minor differences between the different calendar integrations, which are detailed in the tables below. 

NoteOutlook Calendar can be connected to OnceHub in different ways. See the column according to the method you chose to connect with.

ScheduleOnce
Exchange Calendar via EWSOffice 365 Calendar via EWSOffice 365 Calendar via OAuth 2.0
Google CalendariCloud Calendar
Main and sub-calendarsYesYesYesYesYes
Shared calendarsYesYesNoYesYes
Booking in Additional calendarsYes, on a separate eventYes, on a separate eventYes, on a separate event
Yes, as event guestYes, on a separate event
Resource calendarsNoNoNoYes, G Suite resources are fully supported for both resource scheduling and conditional bookingDoesn't exist in iCloud
Cancel or reschedule by the UserYes, in the Activity stream OR directly in Exchange CalendarYes, in the Activity stream OR directly in Office 365 CalendarYes, in the Activity stream
Yes, in the Activity stream OR directly in Google CalendarYes, in the Activity stream
Booking reassignmentNoNoNo

Yes, in the Activity streamNo
Corporate connectionYes, on requestYes, on requestYes, on request
Yes, using G SuiteNo
Real time connectionYesYesYes
YesYes
AuthenticationEmail address and password/app password
Email address and password/app passwordOAuth 2.0
OAuth 2.0Apple ID and app-specific password
Secure connectionEncryptedEncryptedEncryptedEncryptedEncrypted


InviteOnce
Exchange Calendar via EWSOffice 365 Calendar via EWSGoogle Calendar
Main and sub-calendarsYesYesYes
Shared calendarsYesYesYes
Resource calendarsYesYesNo
Corporate connectionYes, on requestYes, on requestYes, using G Suite 
Real-time connectionYesYesYes
AuthenticationEmail address and password/app passwordEmail address and password/app passwordOAuth 2.0
Secure connectionEncryptedEncryptedEncrypted
Was this article helpful?
Thank you for your feedback!