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

clarecomputer
clarecomputer used Ask the Experts™
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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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Rob HutchinsonTech Lead, Desktop Support

Commented:
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?

Author

Commented:
Single domain forest, I wish it were that easy :(
Rob HutchinsonTech Lead, Desktop Support

Commented:
Is the account name using any special char's?
http://support.microsoft.com/kb/938447
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Author

Commented:
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
Rob HutchinsonTech Lead, Desktop Support
Commented:
I think you are having problems because "service" is a reserved name?

I'll see if I can find a direct reference.
Tech Lead, Desktop Support
Commented:
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.
Gareth GudgerSolution Architect
Most Valuable Expert 2014
Top Expert 2014

Commented:
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.
Gareth GudgerSolution Architect
Most Valuable Expert 2014
Top Expert 2014
Commented:
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.

Author

Commented:
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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