Script to populate AD fields

BuckMacD 

If you have a .csv file with these lines in them (only added as example, you can add as much as you want of course), you can use the script below to put values in Active Directory users: 

username,firstname,lastname,email

testuser1,test,user1,Emailaddress

foreach ($user in Import-Csv C:\Scripts\users.csv -Delimiter ',') {
Set-ADUser -Identity $user.username -GivenName $user.firstname -Surname $user.lastname -EmailAddress $user.email
}

But you can add more in your csv of course and use the other parameters in Set-Aduser (https://docs.microsoft.com/en-us/powershell/module/activedirectory/set-aduser?view=windowsserver2022-ps)