Would you have noticed?

One synthetic tracked metric: a campaign's cost per acquisition, 200 days. Plant a change, set your alarm budget, and see which detector notices, and what the alarms cost across a whole account. Synthetic data throughout.

What happened

How big was it: +120%

Alarm budget: 1 per tracked metric per year

Tracked metrics you watch: 20

Show the numbers as a table

Detector	Score today	Alarm line	Fired

Self-check: running…