Base Shape
1) Signup
2) Purchase Success
3) Trial Started
4) Core Activity (Login)
5) Feature Exploration
6) Support Escalation Pattern
7) Cart Abandoned
8) Re-Engagement Return
Bulk Submission Example
Invalid Example And Fix
Invalid (missing email and uid):Example Quality Checklist
- include deterministic idempotency_key values
- use canonical event type names
- include source for easier diagnostics
- include ts when importing historical events
- keep metadata compact and meaningful

