When I add ADFS user into SharePoint via PeoplePicker with UPN identifly, user account show as "c:firstname.lastname@example.org". May
i know "c:0e.t|" is correct? Or need
to be "i:0e.t|"?
And I found a bug on group page (/_layouts/15/groups.aspx). All UPN identifly user with "c:0e.t|" will show on group page.