Google Wallet sends a notification to the user three hours prior to the
event. The event time is defined by
class.dateTime.start.
To receive this notification, the user must have notifications enabled. To check this, they can navigate to Settings > Notifications and see if Updates about your passes is turned on.
The notification shows up in the notifications area, and in the lock screen, if the user has notifications enabled for the lock screen.
The notification has the following unmodifiable format:
class.eventName
If they tap the notification and unlock their device, their pass appears in the Google Wallet app.
If the user has multiple passes, only the soonest useable pass is shown. If they've added grouped passes as per Group multiple Event tickets, the notification only shows one of the passes in the group. However, when they tap it, the user can swipe left and right to see the other passes in that group.
The notification is pinned and won't auto-dismiss after a user opens it. Auto-dismiss occurs 60
minutes after class.dateTime.start.