Home > development, MOSS, MS SharePoint Sever, Project Server, sharepoint, sps, Uncategorized > Can not add the user because a user with that name already exists …

Can not add the user because a user with that name already exists …

This issue occurs when:

You created a user account in the Active Directory. You added the user to your site. Then you deleted the user account from Active Directory and created a new user account with the same logon name as the user account that is deleted. Now you try to add the new user account to your site that you created in Active Directory.

Here is the solution:

Go to the following url:



Here you can reach through Site Settings -> Go to Site Administration -> View site collection user information. Remove the user that you are trying to add.

Now go back to Site Settings –> Manage Users and add the user as you do it normally. It should work!

 Hope this helps–

  1. June 18, 2008 at 1:40 pm

    THANK-YOU! This soooo saved our butts on just such an issue!

  2. Naveed Khan
    September 28, 2009 at 5:13 pm

    Thank You, I was so confused as to why this error was occuring….turns out that the System Admin had changed the name of one of the security groups and this caused a few issues with Sharepoint.

    Great Solution Thanks Again

  3. Kris
    September 30, 2009 at 1:58 pm

    Yes , Thank you Brian. Now, how do I prevent this from happening for every employee my company rehires?

  4. January 13, 2010 at 6:29 pm

    worked like a dream thanks very much.


  5. Chris
    January 18, 2010 at 5:21 pm

    Thanks! This worked.

  6. Ottolien
    March 9, 2010 at 9:06 pm

    Thanks, works like a dream!

  7. Geoff
    September 2, 2010 at 5:31 am

    Thank! Worked great..

  8. richard
    September 7, 2011 at 10:34 am


  1. January 7, 2010 at 6:10 am

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