ERROR_DS_UPN_VALUE_NOT_UNIQUE_IN_FOREST | Windows Error Code
This page will publish a list of related information on error codes frequently seen on Windows.
sponsored link
2.2 Win32 Error Codes
http://msdn.microsoft.com/en-us/library/cc231199.aspx
3.1.1.5.1.3 Uniqueness Constraints
http://msdn.microsoft.com/en-us/library/dn392337.aspx
SPN and UPN uniqueness
http://technet.microsoft.com/en-us/library/dn535779.aspx
sponsored link
[Windows Error Message List]