Trigger Stats, under Statistics → Trigger Stats, shows how your automation triggers are performing. Unlike a broadcast (one send) or an evergreen (separate stats per run), a trigger fires continuously whenever its conditions are met, so its statistics are cumulative — a trigger showing 145 Total Actions has executed 145 times over its entire lifetime, and the numbers keep growing while it stays active.
The main list shows each trigger's audience type (Based On List, Based On Segment, or Custom), its action — such as Send Broadcast, Start a drip group, Remove subscriber, or Send notification email to admin — plus Total Actions and Last Activity. You can filter by admin, switch between admin and user records, and search by name. Clicking Details opens statistics matched to the action type: Send Broadcast triggers get the full broadcast-style interface (Summary, Opened, Clicked, Unsubscribed, Bounced, Complaints, Logs, and A/B tabs), while drip-group triggers first show a table of every drip in the group with its interval, sent count, opens, clicks, and unsubscribes, so you can compare each step of the sequence before drilling into one.
Use Total Actions and Last Activity as health checks: zero actions on an active trigger means its conditions are never being met, and a stale timestamp on a trigger that should fire often suggests a problem. High counts confirm the conditions match frequently — verify that's intended — and unsubscribe spikes on trigger emails often mean it fires too often or the content isn't relevant.