The events registry lists the events the system recognizes.
Use registered events to automate other activities, such as script actions or notifications.
After you create a new event and a business rule that uses the event, you must register it.
Registration lets other parts of the system, such as Email Notifications and Script Actions, see the event in their list of available events and react to the event when it occurs.
You can register an event for a specific table and a business rule that fires the event.
Event Log:-
The event log records all system events that occur within the system.
This log provides the following information for all events that occur:
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open ServiceNow click on all application.
click on system logs. the system logs module provides a variety of lugs that you can use to troubleshoot and debug transactions and events that take place within the instance. click on events the event log records all system events that occur within the system.
