After migrating from a Server 2003 Active Directory, to a Windows Small Business Server 2011 installation, I found that the migration did not import the existing AD users and computers into the SBS 2011 console.

A quick google search found this simple fix:

  1. Optional. Using the Active Directory Users and Computers console, move your users to theMyBusiness/Users/SBSUsers Orginization Unit.
  2. Open ADSI Edit from administrative tools
  3. Right click ADSI Edit and Connect to… and click Ok keeping the default values
  4. Browse to the user you want to import to the SBS 2011 Console
  5. Richt click the user, and select Properties
  6. Find the setting msSBSCreationState and set the value to Created
  7. Save the changes, and repeat for other users.