Properties worth requiring before you add another event
How required event properties keep reporting trustworthy when teams expand an event tracking strategy.
Adding events is easy. Making sure each one carries the properties your reports need is the discipline that keeps strategy work from decaying.
A short required set
For most product funnels we recommend requiring:
product_areaor equivalent surface labelplatform(ios, android, web)experiment_idwhen the action sits inside a test- A stable user or account key your privacy policy already allows
Optional properties can expand later; required ones should fail QA when missing.
Resist souvenir properties
Teams often attach every field visible on a screen “just in case.” That habit slows implementation and creates contradictory dimensions in reports. If a property has no owner who will use it in a named report, leave it out of the first tracking plan.
QA in staging with real paths
Walk the funnel on staging and confirm required properties populate before release. A tracking plan without a QA checklist is only a suggestion.