Track meaningful events such as workspace_created, invite_sent, first_project_created, and subscription_started.

How to apply it

Document event timing, required properties, ownership, deduplication, and schema version. Minimize personal data. Analytics is not a substitute for a durable billing ledger.

Worked example

Define activation as creating a first project and inviting a teammate within seven days; instrument both actions consistently.

Common mistakes to avoid

Tracking every click without a decision to inform or changing event meanings silently.

Practice task

Implement this concept in the capstone. Add one positive test, one negative or failure-path test, and a short note explaining the trade-off you chose.