Duarte's SharePoint info

When adding a user to a group, if it happens to get the error "The User does not exist or is not unique", can happen due to many reasons and usually after migrating a Portal. But if consistently happens to many different users. Try this!

1. check the following property:

   stsadm -o getsiteuseraccountdirectorypath -url http://www.moss.com

2. if it returns something like:

   <SiteUserAccountDirectoryPath>ou=team,ou=department,ou=company,

   DC=domain,DC=com</SiteUserAccountDirectoryPath>

3. Try applying:

   stsadm -o setsiteuseraccountdirectorypath -url http://www.site.com -path ""

   Operation completed successfully.

This worked for me! Good luck!

reference: http://www.msexperts.org/blogs/mark/archive/2009/10/28/the-user-does-not-exist-or-is-not-unique.aspx