Event trigger
Events are system triggers a user does not visibly notice. You can use events to specifically trigger flows. This is useful for example to automatically show a welcome message or trigger a flow from cloud code or webhooks.
Events also allow you to design complex apps that reuses flows.
Note:
You can only use events as the starting trigger of a flow.
Trigger event using code action action
async payload => {
trigger('EVENT_NAME')
}