Events Event are special records the system uses to log when certain conditions occur and to take some kind of action in response to the conditions. The system uses business rules to monitor for system conditions and to generate event records in the Event [sysevent] table, which is also known as the event log or event queue. Event-generating business rules typically use this script logic: If [some condition is true for the current record], then [add a specific event to the queue]. For example, here are some of the conditions in the incident event business rule: If a user adds a comment to an incident record, add an incident.commented event. If a user adds an incident record, add an incident.inserted event. If a user updates an incident record, add an incident.updated event. Event-generating business rules use the GlideSystem eventQueue method to insert event records, which typically contain this information:Table 1. Event fields Field Description Name The unique name of event. Baseline event names include the record effected and the triggering action such as incident.commented. Parm1 An event-specific parameter the system uses to pass record information to other parts of the system, such as a record Sys ID or a field value. Parm2 Another event-specific parameter the system uses to pass record information to other parts of the system, such as a record Sys ID or a field value. Table The table to which the event applies. This is the same table on which the business rule ran. Instance The Sys ID of the record to which this event applies. Scheduled jobs periodically read the event queue and forward them to the appropriate handler for processing. The handler uses information from event records to take some kind of action such as: Send a notification Run a script action Trigger a workflow activity By default, the system provides events covering a broad view of application activity. If existing events do not meet your needs, you can create your own events to watch for specific changes to records. Event registryThe events registry lists the events the system recognizes. Use registered events to automate other activities, such as script actions or notifications.Event statesThe event state describes where in the life cycle the event is.Event logsThe event log records all system events that occur within the system.The incident events business ruleThe incident events business rule comes with the system and defines a number of events that can be triggered by different actions in the Incident table. Sample scripts from the change events business ruleSeveral scripts are found in the baseline change events business rule. Create an eventIf you do not find a suitable existing event, you can create your own.Register an eventScript actionsYou can use script actions to create server-side scripts that perform a variety of tasks, such as modifying a configuration item (CI), or managing failed login attempts. Script actions are triggered by events only.Global eventsYour instance has a global function called global_events() that triggers from a business rule when certain conditions occur.Reprocess an eventYou can fire the event again for testing or diagnostic purposes.Pass event parameters from a workflow to a notificationYou can pass two event parameters that send information about a record or related records from a workflow to a notification.