Groups is a collaboration feature within Microsoft 365 that provides a shared Outlook inbox, calendar, and SharePoint site.
Service update: ITS requires that all Groups have at least one owner who is responsible for managing membership and group settings. Members of a Group that no longer have an owner will receive a system-generated message that notifies them of this status and requests a response about ownership (example of the message below). Members will receive notifications for up to one month, and if no on claims ownership of the Group, it and its associated services will be deleted.
