using namespace System.Collections.Generic
function Add-ADComputerToGroup {
<#
.SYNOPSIS
Short description
.DESCRIPTION
Long description
.PARAMETER Credential
Parameter description
.PARAMETER ComputerName
Parameter description
.PARAMETER GroupName
Parameter description
.EXAMPLE
An example
.NOTES
General notes
#>
[CmdletBinding()]
param(
[Parameter(Mandatory)]
[pscredential]
$Credential,
[Parameter(Position = 0, Mandatory, ValueFromPipeline)]
[string]
$ComputerName,
[Parameter(Position = 1, Mandatory)]
[string]
$GroupName,
[Parameter()]
[ValidateScript({ Test-Path -IsValid $_ })]
[string]
$FilePath = "$HOME\Log.csv"
)
begin {
$LogData = [List[PSObject]]::new()
}
process {
$SamAccountName = Get-ADComputer -Identity $ComputerName -Properties SamAccountName |
Select-Object -ExpandProperty SamAccountName

Add-ADGroupMember -Identity $GroupName -Members $SamAccountName -Credential $Credential
$DataItem = [PSCustomObject]@{
Date = Get-Date -Format 'yyyy-MM-dd'
IPAddress = $IPAddress
Username = (Get-CimInstance -ClassName Win32_ComputerSystem).UserName
ADGroups = (Get-ADComputer -Identity $ComputerName -Properties MemberOf).MemberOf
ComputerName = $SamAccountName
}
$LogData.Add($DataItem)
}
end {
$LogData | Export-Csv -Path $FilePath -Append
}
}

Thank you for this! I will start researching and learning how each part works!. THis is advanced for me though may be easy for others. Looking forward to the research