Four Flow Notification approaches (Action script, Trigger Event, trigger notification and Send email

ServiceNow; Flow notification; Flow Action; Event and Flow Designer.
There are 4 ways to send a notification through Flow created by flow designer. This blog will introduce all types of notifications so you can learn which approach is the best approach for you.
Type of a flow notification
Event notification - pre-requirement is that you need to create an event and a notification on the target table and configure the event into the notification. When the event is triggered, a notification will be sent out. There are two ways to configure an event in flow: 1) Configure the access directly to the event table (sysevent) ; 2) use a flow action script
Trigger notification - configure "Send when field" of a notification section ( When to send ) to "Triggered" and then configure this notification directly in a flow using the flow action: " Send notification"
Send Email - use the action-"Send Email" to configure the notification.