Problems with Invoke-Command

Question

In my script I want to get Exchange Online distribution group members to my array $members_id.

I want to run the cmdlet Get-DistributionGroupMembe

Answer 1

I'm not quite sure why you're getting the error (it's probably because of how you opened $Session), but if you want the output of a remote command Get-DistributionGroupMember in a local variable $members_id you need to change your code to something like this:

$members_id = Invoke-Command -Session $Session -ScriptBlock {
    Get-DistributionGroupMember -Identity "power_shell_test"
}

Use -ArgumentList only if you want to pass the ID of the group whose members you want resolved into the scriptblock. You can either assign the parameters to variables inside the scriptblock with a Param() directive:

$members_id = Invoke-Command -Session $Session -ScriptBlock {
    Param($id)
    Get-DistributionGroupMember -Identity $id
} -ArgumentList $group_id

or use the automatic variable $args:

$members_id = Invoke-Command -Session $Session -ScriptBlock {
    Get-DistributionGroupMember -Identity $args[0]
} -ArgumentList $group_id

Alternatively you could access variables outside the scriptblock via the using: scope modifier:

$members_id = Invoke-Command -Session $Session -ScriptBlock {
    Get-DistributionGroupMember -Identity $using:group_id
}