Users in the Cisco Webex collaboration environment want to be able to use @webex when...

Add an O365 tenant in the admin pages of Webex as a Microsoft 385 Global administrator.

Add the Webex domain in the calendar integration services in the admin interface for Microsoft Exchange Online.

Enable user onboarding for each user in the Webex admin interface. Each user will then authorize Webex to read only their calendar in a secure manner.

Add an O365 tenant in the admin pages of Webex as a Webex site administrator.