PS_AD_User_Importer.ps1

# Path to CSV File
$ADUsers = Import-csv C:\Temp\NewUsers.csv

foreach ($user in  $ADUsers) {

    $Username = $User.username
    $Password = $User.password
    $Firstname = $User.firstname
    $Lastname = $User.lastname
    $Department = $User.department
    $OU = $User.ou

    # Check to see if user account exists in Active Directory
    if (Get-ADUser -Filter {SamAccountName -eq $Username}) {
        # If user does exist then output a warning message
        Write-Warning "A user account named $Username already exists within Active Directory"
    }
    else {
        # If the 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.
        # Ensure you change the domain name in the "-UserPrincipalName" variable
        New-ADUser `
        -SamAccountName $Username `
        -UserPrincipalName "$username@SecureCo.com" `
        -Name "$Firstname $Lastname" `
        -GivenName $Firstname `
        -Surname $Lastname `
        -Enabled $true `
        -ChangePasswordAtLogon $true `
        -DisplayName "$Lastname, $Firstname" `
        -Department $Department `
        -Path $OU `
        -AccountPassword (ConvertTo-SecureString $Password -AsPlainText -Force)
                
    }
}