Resetting User’s Password using Microsoft Graph API

VasilMichev

I working off the following Microsoft Document to reset a users password using graph.

https://docs.microsoft.com/en-us/graph/api/passwordauthenticationmethod-resetpassword?view=graph-rest-beta&tabs=http

I created a service account:
- gave that account "Authentication admin" privileged
- add UserAuthenticationMethod.ReadWrite.All permission to app in APP Registration

Question: Do you have any recommendation on what I would need to get graph for PW reset to work?

Also, I have additional question, I'm still new to whole using Microsoft Graph API within my PowerShell. How can I make the payload (password) a $variable?

Thank You,
-Larry

Below is the snapshot of the script I'm trying to get to work
###############################################

Function HeaderToken-RW
{
# Define AppId, secret and scope, your tenant name and endpoint URL
$AppId = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
$AppSecret = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
$Scope = "https://graph.microsoft.com/.default"
$TenantName = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
$Url = "https://login.microsoftonline.com/$TenantName/oauth2/v2.0/token"

# Add System.Web for urlencode
Add-Type -AssemblyName System.Web

# Create body
$Body = @{
client_id = $AppId
client_secret = $AppSecret
scope = $Scope
grant_type = 'client_credentials'
}

# Splat the parameters for Invoke-Restmethod for cleaner code
$PostSplat = @{
ContentType = 'application/x-www-form-urlencoded'
Method = 'POST'
# Create string by joining bodylist with '&'
Body = $Body
Uri = $Url
}

# Request the token!
$Request = Invoke-RestMethod @PostSplat

# Create header
$Header = @{Authorization = "$($Request.token_type) $($Request.access_token)"}

Return $Header
}#End Header Function

$AdminName = 'xxxxx@xxxx.com'
$EncryptPW = "xxxxxxxxxxxxxxxx"
$UserCredential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $AdminName, ($EncryptPW | ConvertTo-SecureString)


$UserAZGUID = 'XXXXXXXXXX-XXXXXXXXX-XX-XXXXXXXXXX-XXXX'
$HeaderRW = HeaderToken-RW
$PWResetURI = "https://graph.microsoft.com/beta/users/$UserAZGUID/authentication/passwordMethods/$UserAZGUID/resetPassword"
$Body = '{"newPassword" : "password"}'

$UserResult = Invoke-RestMethod -Headers HeaderRW -Uri $PWResetURI -Method POST -Body $Body -Credential $UserCredential -ContentType "application/json"

Thank You for responding