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Change historychevron_rightGoogle Analyticschevron_rightMar 31, 2025

GA4 introduced '(data not available)' source/medium value to replace '(not set)' for Cross-network

Date
Mar 31, 2025
Regions
Global
Primary source
Google Analytics Help

A new '(data not available)' value appears when source and medium cannot be determined, improving attribution of Direct-vs-Cross-network traffic; reports show a warning icon when the rate is high.

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