Event rule configuration You can configure event rules to generate alerts for tracking and remediation. Event rules are stored in the Event Rule [em_match_rule] table. The rules do not change the event records in the Event [em_event] table. Instead, changes to event data are stored in the ServiceNow instance memory. You can use the default event rules or create rules to: Apply an event rule filter to determine whether the rule applies to an event. Apply a transform with Event Match Fields and optional Event Compose Fields to format the alert text. Apply a transform to ignore an event. Apply a threshold to create custom alerts for rapidly recurring events. Automatically create or close alerts. Default event rulesDefault event rules are available for various sources. You can customize these rules as necessary to manage events and alert generation.View event rulesYou can view all event rules on the Event Rules list.Find rules that were applied to events or alertsView the rules that were applied to events and alerts to confirm how events are processed.Create an event rule in simple viewUse the simple view to create an event rule without complex regular expressions. Find events that are not matched to rulesFind events that are not matched to any rules, and determine if it is necessary to create event rules to manage them.Create an event rule in advanced viewUse the advanced view to create an event rule with regular expressions (regex). Event rules use the fields from the event to generate alerts. Ignore an eventYou can configure an event rule to ignore extraneous events and prevent alert generation.Compose alert textYou can configure an event rule to customize alert content.Populate custom alert fieldsYou can populate custom alert fields with data contained in Additional information field of the event. Set a threshold to suppress alert generationYou can configure an event rule to suppress alert generation according to a threshold based on the value of event fields or number of occurrences, over a period of time. View patterns for event group creationEvent groups are sets of events that do not have a matching event rule. You can view the patterns in a group of events to learn the impact of creating a rule based on the event source and description patterns. Events are grouped according to their source and description.Alert binding to CIs with event rulesWhen alerts are associated with CIs, the task of remediation is simplified. During alert generation, Event Management uses event rules and other mechanisms to automatically bind alerts to CI information from the CMDB. For tracking purposes and remediation, the alert shows information about the CI that caused the event.