Updated June 10, 2025: We have updated the timeline below. Thank you for your patience.

The modern Viva Engage user experience is available now for External, and you are being asked to initiate migration. This message provides details on adopting the modern version of External Networks.

In addition to the user experience changes, we are building modern External Networks on top of native Microsoft 365 services just like your Engage home network experience. This increases the level of compliance and enhances the admin experience by enabling Microsoft 365 admin features that are available on tenants.

IMPORTANT: When requested in future communications, admins must choose to migrate External Networks to the modern platform. Failure to respond will result in the legacy External Networks being retired and deleted.

New in this update: The cutoff date for filing any extension request is by June 15th. Any external network that hasn’t requested an extension by this date will no longer be accessible starting July 7th, 2025.