Help Me Figure Out Why My Entra Password Reset Script Isn’t Working

Hey everyone! I'm having some trouble with a script I wrote to reset passwords for Entra ID users from a CSV file. Here's what I'm trying to do: I import a CSV that lists users, iterate through that list, and reset each user's password. I'm testing it using just myself in the CSV. The issue is, after running the script, I don't get prompted to change my password the next time I log in. Just to give you some context, we operate in a completely cloud-based environment, so all our users are managed via Entra without any connection to an AD domain. I'm not sure where I'm going wrong. Here's a snippet of my script for reference:

# Define path to CSV
$csvFilePath = "C:Userspwd-rst.csv"

# Load CSV data into variable
$csvData = Import-Csv -Path $csvFilePath

# Define force password change after sign-in
$ForceChangePasswordNextSignIn = "True"

# Loop through users in CSV and update their password
foreach ($row in $csvData) {
$userPrincipalName = $user.UserPrincipalName
$userPassword = $user.Password

# Check if user exists
$existingUser = Get-MgUser -UserId $userPrincipalName -ErrorAction SilentlyContinue

if ($null -ne $existingUser) {
try {
$params = @{
PasswordProfile = @{
password = $userPassword
ForceChangePasswordNextSignIn = $ForceChangePasswordNextSignIn
}
}
Update-MgUser -UserId $UserPrincipalName -BodyParameter $params -ErrorAction Stop
Write-Host "Password updated for user: $userPrincipalName" -ForegroundColor Green
}
catch {
Write-Host "Failed to update password for user: $userPrincipalName" $_.Exception.Message -ForegroundColor Red
}
}
else {
Write-Host "User not found: $userPrincipalName" -ForegroundColor Yellow
}
}