Add Administrative Unit Member
Add one existing user, group, or device to an assigned-membership Microsoft Entra administrative unit, bringing that object into the unit's delegated administration scope. Dynamic administrative units are managed only by their membership rule and reject manual changes. In a restricted-management unit, a group must be a nonunified, security-enabled, non-mail-enabled group that is not synchronized from on-premises. For delegated access, Privileged Role Administrator is the least-privileged supported role. App-only callers that need directory reads also require a supported directory-reader role or an application permission such as Directory.Read.All.