The notifications alerts users about changes in their schedule and other events.
You can find the settings by going to General Settings > Default settings for notifications in the Scheduling section.
On this page you can set what notifications users will receive and how they will receive them.
In addition to appearing in the web interface, the majority of the notifications can be sent via email or to users' mobile phones.
Note! These settings apply only if users have not customized the settings in their own profiles.