Thresholds are defined as an aggregate number of occurrences within a time span. When a threshold is met, the rule triggers an action.
A rule's threshold is defined in the Rules Editor's Aggregation tab. This tab is enabled for standard rules only. It is disabled for lightweight and pre-persistence rules.
Caution: If you set a rule to aggregate over fields of a multi-mapped active list or overlapping session list, the rule might fire multiple times, once for each field value in the corresponding list entries. The Console displays a warning when such a list field is selected in the Aggregation tab.
Do not set rules to aggregate over multi-mapped active list or overlapping session list fields, and also add entries to the same list in a rule action (Adding, Editing, or Removing a Rule Action). Setting both aggregation and rule actions to add entries to the same multi-mapped or overlapped list can cause the number of triggered rules to increase to an unmanageable level.
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