Never customised — alerting runs on package defaults (off).
Admin
Alert webhook
One HTTP POST on the first rollup that flags a session. Slack-compatible payload shape; works against Slack, Discord, Mattermost, Google Chat, and generic JSON receivers.
Fires a synthetic flagged-session payload to the currently-saved URL. Use after Save to confirm the receiver is wired up; a real flagged session pays for itself, but a test shouldn't require waiting for one.
No alerts have fired yet. They'll appear here the first time a session trips the threshold.