There are 5 core events you can select that will push notifications via slack or email. Additionally, there are a minimum of 3 status related events. And, there is one additional event for every custom status that is defined in the custom status module.
To select which events will trigger notifications:
If you have already prepared your slack configuration and you do not wish to send out emails, there is nothing else you need to do. However, if you would like to send out emails as well please read the next section