A good first check is to make sure you have them enabled. Open your settings and make sure notifications are enabled for the Infinite Campus App.
Your school/district has the option to turn on notifications to mobile devices. If you're unable turn on notifications in your settings, your school/district hasn't turned them on.
You may also want to review the notification settings on your phone itself. iOS and Android both offer settings to review your notification configuration. Features like "Do Not Disturb" will quiet notifications for a period of time.
Today we offer three main notification types: attendance, final grades and assignment scores. Generally anytime these pieces of data are created or modified you'll receive a notification, if you selected to receive them.
Look for other notification options soon.