Remove-ADComputer : Access is denied powershell - powershell

Question

Long time lurker but I finally found a problem that I could not find an answer for so I decided it was time to join. Im trying to collect a list of computers in AD that are older than X days ($DelCompDays). Then based off of the DistinguishedName field delete that computer using the Identity flag. Problem is even with domain admin creds I am getting: Remove-ADComputer : Access is denied
Even if I run Remove-ADComputer -Identity "Full CN or Short name" I get an access denied. Anyone have any ideas? Thank you in advance!
#Get AD computers older than $DelCompDays
$results = Search-ADAccount -ComputersOnly -AccountInactive -TimeSpan "$DelCompDays.00:00:00"
#Loop and try to delete
foreach ($result in $results){
if ($result -ne $NULL){
try {
Remove-ADComputer -Identity $result.DistinguishedName -confirm:$false
$Success = "Deleted: $result.DistinguishedName"
WriteCustomOutput -message "$Success" -foregroundcolor green -backgroundcolor DarkMagenta
}
catch {
$Error = "Failed to delete: $result.DistinguishedName"
WriteCustomOutput -message "$Error" -foregroundcolor Red -backgroundcolor Black
}
}
else{
$Warning = "No computers older than $ArcDays days to delete"
WriteCustomOutput -message "$Warning" -foregroundcolor yellow -backgroundcolor DarkMagenta
}
}

Answer 1

Figured it out. When running non-interactive you need to specify the creds in the command call.
$secpasswd = ConvertTo-SecureString "ClearTextPass" -AsPlainText -Force
$creds = New-Object System.Management.Automation.PSCredential ("Username", $secpasswd)
Remove-ADComputer -Identity $result.DistinguishedName -Recursive -confirm:$false -credential $creds