There are a few possible reasons someone may not receive notifications. The causes vary depending on what type of notification should be sent. Select any of the following links to see recommended troubleshooting for receiving each type of notification.

For email notifications, see What can I do if someone is not receiving email notifications?.

For SMS text notifications to a phone, see What can I do if someone is not receiving SMS text notifications?.

For push notifications to a smartphone or tablet on the app, see What can I do if someone is not receiving push notifications?.