New-ADGroup -Name "{0}" -SamAccountName {0} -GroupCategory Security -GroupScope Global -DisplayName "{0}" -Path "OU=HQ_Units,OU=Permission_Groups,OU=Groups,DC=asdf,DC=local" -Description "Test"

Add-AdGroupMember -Identity {0} –Members {1}

Add-ADPrincipalGroupMembership -Identity variable1 -MemberOf {1}

Set-ADGroup -Identity "{0}" -Replace @{{extensionAttribute15="123"}}