Debug Log Events
The mobile push notification service logs events that are useful to understand when you are monitoring an Apex debug log.
The following events are supported:
PUSH_NOTIFICATION_INVALID_APPPUSH_NOTIFICATION_INVALID_CERTIFICATEPUSH_NOTIFICATION_INVALID_NOTIFICATIONPUSH_NOTIFICATION_NO_DEVICESPUSH_NOTIFICATION_NOT_ENABLEDPUSH_NOTIFICATION_SENT
For more information on these events, log levels and categories, and how to use the Developer Console or monitor a debug log, see the Apex Code Developer’s Guide.