Manage your authentication phone numbers and more in new Microsoft Graph beta APIs

This is what I've used to bulk upload, using the Access Token

#Access token required to update the record
$accessToken = "API Access Key here"
$filename = '\usersdata.txt'
# Loop a csv here with the userID and mobile numbers
$records = import-csv $filename
foreach ($record in $records){
    $user = $record.USER_ID
    $mobile = $record.PHONE
    $uri = "https://graph.microsoft.com/beta/users/$user@<domain>/authentication/phoneMethods"
    $body = @"
    {
        "phoneType": "mobile",
        "phoneNumber": "$mobile"
    }
"@
if ($mobile -match '((\+[0-9]{1,3}[ ])[0-9]{4,})'){ # Check number is in correct format
    write-host "Checking Number:  $user, $mobile"
    if ((Invoke-RestMethod -Method Get -Uri $uri -Headers @{"Authorization"="Bearer $accessToken"}).value.phoneType -ne 'mobile') {
        write-host "Adding Number:  $user, $mobile" -foregroundcolor green
        try {
            Invoke-RestMethod -Method Post -Uri $uri -Headers @{"Authorization"="Bearer $accessToken"} -Body $body
            $setMobile = (Invoke-RestMethod -Method Get -Uri $uri -Headers @{"Authorization"="Bearer $accessToken"}).value.phoneNumber
            if ($setMobile -ne $mobile){
                write-host "$user has their phone listed as $mobile, but it is $setMobile in Azure" -foregroundcolor red
            }

        }
        catch {
            Write-Host "Something wrong with the phone number for $user, $mobile" -foregroundcolor red
        }
        
    }
    else{
        $existingMobile = (Invoke-RestMethod -Method Get -Uri $uri -Headers @{"Authorization"="Bearer $accessToken"}).value.phoneNumber
        if ($existingMobile -ne $mobile){
            write-host "Skipping: $user, $mobile as $existingMobile already exists but don't match" -ForegroundColor yellow
            }
        else {
            write-host "Skipping: $user, $mobile as $existingMobile already exists"    
        }
    }
}
else{
    $existingMobile = (Invoke-RestMethod -Method Get -Uri $uri -Headers @{"Authorization"="Bearer $accessToken"}).value.phoneNumber
    write-host "Skipping: $user, $mobile Unknown CountryCode or invalid number" -foregroundcolor Red
}
}