AD Update from CSV file without SamAccountName - powershell

Question

My goal is to use a CSV file exported by HR without the correct headings to update our AD Users&Computers. Ultimately I would like to update: Department, Description/Job Title, Office, Location, Manager.
I'm not asking you to do this for me, just point me in the right direction and id be really grateful.
Also you will notice there is no SamAccountName, this is by design, because users have the same name so we have had to use the first 2 initials of some users first name followed by the last name.
import-module ActiveDirectory
Import-CSV $data | ForEach-Object {
$Name;expression={($_.'First Name'+' '+$_.'Last Name')}
$displayName;expression={$_.'First Name'+' '+$_.'Last Name'}
$givenName;expression={$_.'First Name'}
$surName;expression={$_.'Last Name'}
$description;expression={$_.'Job Name'}
$office;expression={$_.'Location Name'}
$department;expression={$_.'Department Name'}
$title;expression={$_.'Job Name'}
$manager;expression={$_.'Manager Name'}
}
foreach ($user in $data){
Get-ADUser -Filter "displayName -eq '$($user.$Name)'" | Set-ADUser -Replace #{title = “$($user.$title)”}
}
One of the errors I am getting
The term 'expression=' is not recognized as the name of a cmdlet, function, script file, or operable program.

Answer 1

Your code for the most part is unmanageable. It is easier to redo it in order to
point [you] in the right direction
You over complicated things by trying to rename your values of each row. While you can do that you don't really need to. FWIW you were throwing in syntax from calculated properties.
Import-Module ActiveDirectory
# Path to the CSV file
$filePath = "C:\scripts\ADIntegrationData.csv"
# Import the users
Import-CSV $filePath | ForEach-Object {
# Try and find a matching user
$displayName = "{0} {1}" -f $_.'First Name', $_.'Last Name'
Get-ADUser Get-ADUser -Filter "displayName -eq '$displayName'" | Set-ADUser -Title $_.'Job Name' -WhatIf
}
In the case of Set-ADUser you only have to use the -Add, -Remove and -Replace if the property you want to change is already present. -Title is already support so in that case we use it! Always consult the documentation so check the link for Set-ADUser and look at the attributes that are natively available to change.
You will see the -f formatting operator used here. It is a simple way to work with building complicated strings.
Notice the -WhatIf which will help you test your code before making changes to AD that might be wrong.