Support for multiple Exchange endpoints on Google Calendar

What’s changing

We’re enabling support for multiple Microsoft Exchange endpoints so Google Calendar users can view calendar availability for Exchange users across multiple Exchange environments within Calendar Interop. Calendar Interop is a feature that lets you sync events and availability between Google Calendar and Exchange (both on-premises and Exchange Online).

Who’s impacted

Admins and end users

Why you’d use it

If your organization has multiple subsidiaries, or if you want to share calendar availability between trusted external partners, you can now add their Exchange server endpoint as an additional endpoint in the Calendar Interop tool. Each new endpoint must have a unique domain.

Getting started

  • Admins: The new setting update can be found in the Admin console at Apps > Workspace > Calendar > Calendar Interop management. Visit our Help Center to learn more about setting up Exchange calendar availability sharing in the Admin console.
  • End users: Once an additional Exchange endpoint is added, end users should be able to view calendar availability within a few hours.

Rollout pace


  • Available to Workspace, Business Starter, Business Standard, Business Plus, Enterprise Standard, and Enterprise Plus, as well as G Suite Basic and Business customers
  • Not available to Workspace Essentials, Enterprise Essentials, as well as G Suite Education, Enterprise for Education, and Nonprofits customers