Powershell script to change the owner of a subscription to another user

changeSubscriptionOwner.ps1

Write-Host '*************************************'
Write-Host 'Change Subscription Owner starting...'
Write-Host '*************************************'
$oldOwner = "domain\user1"
Write-Host "Old Owner = $oldOwner"
$newOwner = "domain\user2"
Write-Host "New Owner = $newOwner"
$itemPathOrSiteURL = "http://servername/sites/subsite"
Write-Host "Item Path or Site URL = $itemPathOrSiteURL"
$reportServerUri = "http://servername/_vti_bin/ReportServer/ReportService2010.asmx?wsdl"
Write-Host "Report Server URI = $reportServerUri"

$proxy = New-WebServiceProxy -Uri $reportServerUri -UseDefaultCredential;
$proxy.Timeout = 120000

Write-Host "Listing subscriptions for $itemPathOrSiteURL..."
$subscriptions = $proxy.ListSubscriptions($itemPathOrSiteURL)
$num = $subscriptions.length
Write-Host "Found $num subscriptions!"

$num = 0
Write-Host "Looking for subscriptions where owner = $oldOwner..."
foreach ($subscription in $subscriptions) {
    if ($subscription.Owner -eq $oldOwner) {
        $subscriptionId = $subscription.SubscriptionID
        Write-Host "   ChangeSubscriptionOwner($subscriptionId, $newOwner)"
        Try {
            $proxy.ChangeSubscriptionOwner($subscriptionId, $newOwner)
            $num += 1
        } Catch {
            Write-Host "Error changing owner: $_"
        }
    }
}
Write-Host "Successfully changed $num subscription owners!"