Reliable analytics starts before implementation. Use these principles to turn measurement intent into definitions that product, data, and engineering teams can interpret consistently.
Validate the full journey
Test realistic paths rather than isolated taps. Confirm that required events arrive once, in order where relevant, and with the expected identity state.
Inspect values, not just event arrival
Check data types, currency conventions, IDs, timestamps, optional fields, and enumerated values. A populated property is not necessarily a correct property.
Record evidence
Attach test cases and observed payloads to the release record. This creates a useful baseline when a future app or SDK change affects collection.