Overview
The built in notification system, first ever in Joomla allows your app to keep the user (or group of users) informed about various different events in your component. Think of notifications as important alerts that user would be interested to read and keep track of it.
Notifications can be generated everywhere. In your component or plugins and later displayed inside JomSocial notification system.
This tutorial will show you how, but since we do not have an idea of any third-party component we could use :) the examples will be done on a community plugin which will be triggered at onAfterProfileUpdate event
If you don't know how to create plugin which will be triggered on this even, we suggest you to check this guide