TrackLayer fits a rolling Z-score + SES (single exponential smoothing) baseline to every event class. When volume, delivery rate, or value drops outside 3σ — you get a Slack message. Not a daily digest, not a dashboard notification buried under 40 tabs. Within 60 seconds of the deviation.
Rolling mean + exponential smoothing catches both sudden shocks and slow drift.
TikTok usually has 15% retry rate at 03:00 — we learn your normal, don't alert on it.
Scheduled campaigns (BFCM, product drops) suppress alerts for the window you mark.
Every alert links to the dashboard view that matches the metric. One click to root cause.