Module 7
Data Quality & Governance
Keep trust in data: schema, alerts, environments, regressions.
Why it matters
The most expensive growth is growth built on bad data. Governance keeps your tracking spec enforceable and your dashboards trustworthy.
Template
Monthly audit (15–30 min)
- Core event coverage (did anything drop?)
- Duplicate events/properties
- ID integrity (
user_id,workspace_id) - Environment consistency
Alerts (minimum)
- sudden drop in
signup_completed - sudden drop in
workspace_created - sudden drop in
activation_completed - spikes in null/unknown for key properties
Implementation rules
- Critical events: prefer server-side when feasible
- New event requires: spec update + review
Common mistakes
- No environment separation.
- Hotfix tracking without updating the spec.
- A tracking plan that exists but isn't enforced.
Example output
Audit checklist + 4 alerts + a simple "new event requires review" process.