I am trying to add a particular user to an existing distribution group in exchange 2010.
When I do I get this error:
The following error(s) occurred while saving changes:
Error: Active Directory operation failed on MSP-NCR-DC02.masport.co.nz.
One or more attribute entries of the object 'CN=Fin,CN=Users,DC=masport,DC=co,DC=nz' already exists.
I tried another user and had the same result
what could be causing this error?