Hi!
My client would like to remove external users to show up in people picker control. I have found that it is possible in premise SharePoint but not in O365 SharePoint.
Have anyone know solution to this or better information?
br, -sari-
At this point in O365 you cannot edit the people picker control beyond removing the ability at the tenant level to search & autofill addresses in the People Picker.Â
https://technet.microsoft.com/en-us/library/mt147418.aspx