Before you start...
To connect with Calendly, you need Exchange versions 2013, 2016, or 2019. To connect and check multiple Exchange calendars for conflicts, they must be your primary Exchange calendars. Calendly does not check sub-calendars for conflicts.
If you don’t know your server, domain, or username, reach out to your IT department for the required information.
From any Calendly page, select Account, then select Calendar Connections.
Select Add Calendar Account.
Next to Exchange calendar, select Connect.
Enter your Exchange Email Address and your Exchange Password. You can also enter your Exchange server, Domain, and Username if you'd like to.