Powershell Script: Set an extensionAttribute for multiple AD Users

With the attached script you can set extensionAttribute4 for multiple AD Users using a csv file. You can do this for other Attributes as well. :)

# Set extensionAttribute4 for specified AD Users
# Create a CSV file that looks like this:
################################################
# File path: c:\admin\UsersExt4.csv
#
# samAccountName,extensionAttribute4
# username.1,Test12345
# username.2,Test12345
################################################
# Scripty by Tim Buntrock

# import ad module
Import-module ActiveDirectory
# import users from csv and set extensionAttribute4
Import-Csv C:\admin\UsersExt4.csv | ForEach-Object {Set-ADUser $_.samAccountName -Replace @{extensionAttribute4=$_.extensionAttribute4} }