Coverage, Freshness, and Limitations

• Coverage — which pages, sources, and event types are eligible for the selected period.
• Freshness — how recently qualifying data arrived for each source.
• Limitations — bot activity does not prove understanding; referrals do not prove prompts; estimates are not first-party measurement.

Unavailable, insufficient, delayed, not connected, connected with no data, and true measured zero are different states.

• Understand Data Availability
• Trust Center → Limitations