Remove Manager Attribute via PS

Hi experts,

I am trying to remove/delete manager information from the moved users OU, and the PS script is working for single user as below but while i am trying to search for moved OU in the domain, and try to remove manager information for all users those belong to that OU returning with error, could you please advise.

Working script

Set-ADUser ittest -manager $null

The below script is not working:

$Server = ""
$SearchBase = "OU=Moved Users,DC=test,DC=com"
Get-ADUser -Identity * -Server $Server -SearchBase $SearchBase -Properties * |
Select-Object -Property | Set-ADUser -manager $null


Get-ADUser : Parameter set cannot be resolved using the specified named paramet
At line:1 char:11
+ Get-ADUser <<<<  -Identity * -Server $Server -SearchBase $SearchBase -Propert
ies * |
    + CategoryInfo          : InvalidArgument: (:) [Get-ADUser], ParameterBind
    + FullyQualifiedErrorId : AmbiguousParameterSet,Microsoft.ActiveDirectory.
Could you please advise.
Who is Participating?
footechConnect With a Mentor Commented:
You can use the following.  There is no need to return all the properties as you aren't doing anything with them, and it will just slow the query down.
Get-ADUser -Filter * -Server $Server -SearchBase $SearchBase | Set-ADUser -Clear Manager
#this also works
Get-ADUser -Filter * -Server $Server -SearchBase $SearchBase | Set-ADUser -Manager $null

Open in new window

Rajitha ChimmaniCommented:
Identity * will not work to get all users. You have to provide a filter to list all objects. Try this. I have not tested it though.

Get-ADUser -Server $Server -SearchBase $SearchBase -Properties * -Filter {ObjectType -eq "User"} | Set-ADUser -manager $null
ipsec600Author Commented:
Hi Rajitha,

Thank you for your reply, now the PS command become successful without returning any error but it is not removing Manager information for users, could you please advise.
Get 10% Off Your First Squarespace Website

Ready to showcase your work, publish content or promote your business online? With Squarespace’s award-winning templates and 24/7 customer service, getting started is simple. Head to and use offer code ‘EXPERTS’ to get 10% off your first purchase.

Rajitha ChimmaniCommented:
Try this. I would recommend trying $null in double quotes for single user first.

Get-ADUser -Server $Server -SearchBase $SearchBase -Properties * -Filter {ObjectType -eq "User"} | Set-ADUser -manager "$null"
BTW, Rajitha's doesn't work because the filter is incorrect.  It should be {ObjectClass -eq "User"} but that's also unnecessary since all objects that Get-ADUser returns have an ObjectClass of User.
Rajitha ChimmaniCommented:
I agree that the filter is incorrect but -Filter is a required parameter for Get-ADUser. You might not be able to run it without providing some filter.
My example does provide a filter, "*", which is valid and works.
Get-ADUser requires one of the following parameters: -Identity, -Filter, or -LdapFilter
ipsec600Author Commented:
Excellent!! The PS command works perfectly that I was expecting, Thank you footech. And also thanks to Rajitha!!
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.