Date: Wed, 19 Jun 2013 00:11:34 +0200
- Ian Morrish's WSSDemo Blog
User already exists!
I know some people get very frustrated by this error when you try and add some to a SharePoint site who’s Windows account was recreated.
Even though you delete their old account from a SharePoint site, you can’t add them back. You need to also delete them from the “Manage Site Collection Users” which can be found at the following URL /_layouts/1033/siteusrs.aspx