Hi Alexandra! You can find more information about Notifications here. You can find more information about customizing notifications in this Developer's Blog post. Hopefully these help you learn more about notifications. Let us know if you have any more questions!

Hi Alexandra! You can find more information about Notifications here. You can find more information about customizing notifications in this Developer's Blog post. Hopefully these help you learn more about notifications. Let us know if you have any more questions!

Also you may check this thread about a nice little plugin

https://sugarclub.sugarcrm.com/explore/help-forums/enterprise-professional/f/enterprise-professional-questions/3984/how-about-visual-notifications-for-activity-stream-mentions

Bests

Björn