#Enter a path to your import CSV file
$ADUsers = Import-csv C:\Users\Administrator\scripts\users.csv
foreach ($User in $ADUsers)
{
  $Username = $User.username
  $Password = $User.password
  $Firstname = $User.firstname
  $Lastname = $User.lastname
  $OU = $User.ou
#Check if the user account already exists in AD
  if (Get-ADUser -F {SamAccountName -eq $Username})
  {
  #If user does exist, output a warning message
    Write-Warning "A user account $Username has already exist in Active Directory."
  }
  else
  {
  #If a user does not exist then create a new user account
  #Account will be created in the OU listed in the $OU variable in the CSV file; don’t forget to change the domain name in the"-UserPrincipalName" variable
    New-ADUser `
    -SamAccountName $Username `
    -UserPrincipalName "$Username@ECORP.local" `
    -Name "$Firstname $Lastname" `
    -GivenName $Firstname `
    -Surname $Lastname `
    -Enabled $True `
    -ChangePasswordAtLogon $True `
    -DisplayName "$Lastname, $Firstname" `
    -AccountPassword (convertto-securestring $Password -AsPlainText -Force)
  }
}