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Active directory - Cannot create the object because the specified account already exists

Posted on 2014-11-17
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Last Modified: 2014-11-18
Hello,

I usually create an AD account and then the Exchange account, but decided to skip a step and create the user in Exchange and allow it to create the AD account. What I have now is an invisible account I cannot find in the orphaned and deleted objects container in ADSI edit. Also, dsquery says it cannot find the account and Powershell cannot find the account. Of course when I go to create the account again, it says it already exists. Stumped at this point.
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Question by:clarecomputer
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by:Rob Hutchinson
ID: 40448756
Can't you just right click the domain, and choose "Find..." from the popup using the AD Users and Computers gui tool?

I know if you are  searching in the wrong domain, it's going to give you the same error so maybe you are defaulting the search to the wrong domain?
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by:clarecomputer
ID: 40448766
Single domain forest, I wish it were that easy :(
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by:Rob Hutchinson
ID: 40448795
Is the account name using any special char's?
http://support.microsoft.com/kb/938447
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by:Rob Hutchinson
ID: 40448799
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by:clarecomputer
ID: 40448809
Account name is simply "service"

I actually found that article earlier, I can't even get the information he is getting on the orphaned object
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by:Rob Hutchinson
Rob Hutchinson earned 334 total points
ID: 40448820
I think you are having problems because "service" is a reserved name?

I'll see if I can find a direct reference.
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Rob Hutchinson earned 334 total points
ID: 40448847
I couldn't find a direct reference, but 100% sure this is why.

For example, even on a Windows 7 computer; go into the local users management and try to create an account using the name "Service"; you get the same error.
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Expert Comment

by:Gareth Gudger
ID: 40448854
What happened from the "Find...." from the top-level domain that Rob previously mentioned. Did that return any results?

If you didn't specify an OU when you created the user in Exchange it would have dumped it into the Users root OU by default.
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Assisted Solution

by:Gareth Gudger
Gareth Gudger earned 166 total points
ID: 40448858
Actually Rob is right. I just tried creating a User called Service in my 2012 AD lab and it blocked me saying it already existed.

So, what you probably did was create a mailbox for a built-in user that already existed.

So you need to pick a different UPN.
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Author Comment

by:clarecomputer
ID: 40450444
Oh wow, I didn't expect that result. Its true, I cannot create a service account on my local workstation. Just created a user with a different UPN and added service@blah.com as an additional mailbox. Thanks for the replies!
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