'Gathering a list of both Standard Attr. and Extended attr. for Azure

I am new to PowerShell and am looking to do something and am not able to figure it out, so naturally I turn to the experts over here. I don't know if it makes a difference, but I will be using Cloud Shell to run this operation.

I am needing to gather a list of all users on my AzureAD environment and collect two pieces of information. The first is a users Display Name or UPN, and the second is an extended attribute (we will call this EA1). After I have that I will need to move it into a CSV so I can send it off.

What I have found so far are two commands that I believe I would need to combine.

Get-AzureADUser | Select displayName
(Get-AzureADUserExtension).get_item("ea1")

Both of those commands will get me the overall information that I am looking for, but I will need to combine/correlate it.

I feel like I will need to set these to variables but I am not 100% sure on this.

Any assistance on this would be much appreciated.

Solution 1:^[1]

To reach your requirement, try the below steps if they are helpful:

To get list of all Azure AD users, make use of below cmdlet:

$AAD_users = Get-AzureADUser -All:$true

To get the specific properties of all users, make use of foreach loop.
To expand Extension Attributes related to the user convert Dictionary to Custom Object so that we can use dot (.) operator to access the keys.
In this, I have retrieved createdDateTime extension attribute. You can replace it with EA1
To Combine both the regular attributes and extension attributes to a single object and to move all the information to a CSV, make use of below script:

$Info = @()
$AAD_users = Get-AzureADUser -All:$true
foreach ($AAD_User in $AAD_users) {
$objInfo = [PSCustomObject]@{
User     = $AAD_User.UserPrincipalName
Name     = $AAD_User.DisplayName
CreationDate  = (Get-AzureADUserExtension -ObjectId $AAD_User.ObjectId).Get_Item("createdDateTime")
}
$Info += $objInfo
}
$Info
Export-csv -Path c:\File.csv -NoTypeInformation -Force -Append