@Happyter Once you feel more comfortable with this, a simpler script and Graph API approach could be to use the Graph PowerShell module, the createdDateTime attribute of the user resource. This way you could script this, run the script in scheduled manner and get some kind of output.
Have a look at the Get-MgUser cmdlet. If you run it like:
$Date = (Get-Date).ToUniversalTime().AddMinutes(-15).ToString("yyyy-MM-ddTHH:mm:ssZ")
$NewUsers = Get-MgUser -Filter "createdDateTime ge $Date" -ConsistencyLevel eventual -CountVariable ResultCount
if ($ResultCount -gt 0) {
$NewUsers
}
Would return a list of all users created in the past 15 minutes. You could extend this to take some action like send an email, and schedule the script to run regularly.
