What I am trying to do: I want to add the user “octo” as a member of “Key Admins”. After that, I want to add “Key Admins” to AdminSDHolder and set both write and read permissions on the msDS-KeyCredentialLink attribute for “Key Admins”. I have written a PowerShell script to accomplish this, but I encounter the current error when running it.

What I am trying to do: I want to add the user “octo” as a member of “Key Admins”. After that, I want to add “Key Admins” to AdminSDHolder and set both write and read permissions on the msDS-KeyCredentialLink attribute for “Key Admins”. I have written a PowerShell script to accomplish this, but I encounter the current error when running it.

I’ve multiple ADs in my network, and i wanted to create powershell script, that creates accounts in these different ADs.

Could you please tell me how to fix an error.
The error is “Cannot validate argument on parameter ‘Identity’.
The argument is null. Provide a valid value for the argument, and then try running the command again.”
Below is overall script.

I want to get member list by using Get-ADGroupMember -Identity targetgroup.
The target group has members which is from domain A and domain B.
This is image
Target group members
member1 (domain A)
member2 (domain A)
member3 (domain A)
member4 (domain B)