Tracking that breaks quietly is worse than no tracking: a removed snippet or an expired integration can skew a week of decisions before anyone notices. BrainyMetrics watches its own data and tells you.
Alerts show on the Data health page and as a banner above every page. Owners and admins get one email when a new alert appears: critical ones straight away, warnings once they're seen on two checks in a row. Each alert links to the page that fixes it and resolves itself once the check passes.