Not receiving notification when push notification fails.
Number of push notifications doesn't match number of transactions in Transaction Reporting.
Our API Web Service system does not send an alert if a push notification fails.
If your endpoint has been blacklisted by Roku, you can see your blacklisting status on the Developer Dashboard > Web API Settings.
For more on how endpoints are blacklisted and how to re-enable push notifications if this happens to your account, see Web API Settings.