Activity tab lists all the alerts. Here you will see for each alert, rule name, alert status to indicate whether sending of the alert is success, error or retrying (if the attempt to send the alert is not success), aggregate enabled (Yes) or aggregate disabled (No) for the rule, action chosen for the rule, matches found for the rule and the user who created the rule.
Search for alerts using our search tokens (1), select a period to view the rules triggered during that time frame (2), click any bar to jump to the alerts triggered in a certain timeframe (3), use these filters to group the alerts by rule name, action name, email recipients and status (4).