GA4 terms, in plain words
Google Analytics 4 (GA4) has its own names for where traffic came from and what it counted. Some of them, like (not set) and Unassigned, are placeholders for what it could not tell. Each page below quotes Google’s help page for one term, says what usually causes it and what to change, then says how Convertlyft labels the same thing.
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The terms
- Direct traffic. Traffic GA4 could not trace to a source: a typed address, a bookmark, or a link that carried no tags.
- Unassigned. Traffic that matched none of GA4’s channel rules.
- (not set). The placeholder GA4 shows when it received nothing for a field.
- Cross-network. Google ads that can show on more than one network, such as Performance Max and Demand Gen.
- Event count. How many times something was triggered, not how many people did it.
Where these terms come from
Most of them come from GA4’s default channel group: rule-based names for traffic sources, which Google says reflect its current view and may change as the market changes.[1] The metric names, such as event count and key events, are defined on Google’s list of dimensions and metrics.[2]
Convertlyft starts from the same default channel rules, with its own names for each channel and no placeholder rows: every visit gets a channel. Each term page shows where the two differ. To count users through steps in GA4, see how to build a Google Analytics funnel.
Questions
What is the default channel group in GA4?
Google’s rule-based names for where traffic came from, such as Organic Search, Direct or Email. The default channel group can’t be edited; you can create custom channel groups instead.[1]
Does GA4 have a channel for AI tools?
Yes. Google lists an AI Assistant channel for visits from sources like ChatGPT, Gemini, Deepseek, Copilot or Grok. It leaves out Google’s AI Overviews and AI Mode, which count as Organic Search.[1]
Why do GA4 and other tools show different sources?
Each tool sets its own rules for naming where a visit came from. Compare figures within one tool, and read each tool’s rules before comparing across tools.
Sources
- Google Analytics Help, “Default channel group”, support.google.com/analytics/answer/9756891, checked 8 November 2026.
- Google Analytics Help, “Analytics dimensions and metrics”, support.google.com/analytics/answer/9143382, checked 8 November 2026.
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