About Calendar Interop

As an administrator, you can use Calendar Interop to allow Microsoft Exchange and Google Calendar to work together. Users in both systems share their availability status so everyone can view each others' schedules.

Administrators can

  • Turn on Calendar Interop for a domain.
  • Allow Calendar users to book Exchange calendar resources, such as meeting rooms, when they schedule a meeting.
  • Use automated tools to verify setup.
  • View error messages and suggestions for resolving those errors.
  • Track cross-system user requests for availability information in the Google Admin console.

Calendar and Exchange users can

  • View each other’s availability information. Availability (only busy blocks are visible to users) and additional event information (titles and locations of events are visible to users) lookups are supported.

    Important: Calendar Interop respects event-level privacy settings. If an event is marked as private in Exchange, the event's details are not visible in Google Calendar. Similarly, if an event is marked as private in Google Calendar, its details are not visible in Exchange.

  • View availability and additional event information of Exchange calendar resources (such as meeting rooms), and also book resources when they create events in Google Calendar.
  • Use Calendar Interop with Google Calendar on Android, Apple iOS, and web clients.
  • Use Calendar Interop with Microsoft Exchange 2013 or 2016, or Exchange Online (Office 365) clients (including computer, mobile, and web Outlook versions).

Ready to begin?

Get started with Calendar Interop


Google, Google Workspace, and related marks and logos are trademarks of Google LLC. All other company and product names are trademarks of the companies with which they are associated.

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