When you need to configure or troubleshoot the People Picker in a SharePoint site, the information can be hard to find, but after investing a little time in research and web searching, you’ll eventually learn that it queries profiles from three different sources:
- Your membership provider (such as Active Directory)
- The User Information List (UIL) in the site collection you’re on[易于扩展]
- The User Profile Service Application (UPA)
Well, today I found a 4th source of profiles for People Pickers in SharePoint 2013 and SharePoint Online: Your browser’s cache!
A client removed a number of accounts from their authentication source and then went back in and manually removed the corresponding profiles from each site collection’s UIL and the UPA’s profile store. But no dice, the offending accounts kept showing up in SharePoint 2013′s people picker. I checked and double checked AD, the UIL, and UPA, and sure enough the user accounts were gone from those sources, but they kept showing up in the People Picker.
It was only after checking from another browser that the accounts disappeared.
So if you delete some profiles and keep finding them in your People Picker query results, clear your browser’s cache and that should take care of it. And even if you don’t clear your cache, the issue will be localized to your own browser so you don’t need to worry about your site owners finding and choosing the wrong user accounts.
出处：http://www.tcscblog.com/4th-profile-source-in-sharepoint-2013s-people-picker/