GA4 Channel Grouping & Unassigned Debugger

GA4 walks eighteen rules from top to bottom and takes the first one that matches. This tool runs the same chain on a landing page URL or on hand-typed values and marks the rule that decided the outcome.

Landing page URL (optional, fills the fields below)

utm_source

utm_medium

utm_campaign

Source category

Live Acquisition Audit

Inspect the actual session sources, mediums, campaigns and channel groups reported by GA4. The audit highlights Unassigned rows and spelling variants. The existing channel-rule checker above remains available for individual examples.

Sources

Practical articles

GA4 Channel Rules: How the Order of Evaluation Decides the Channel

Articles that explain this

GA4 Channel Rules: How the Order of Evaluation Decides the Channel Digital Analytics
GA4 Change: “Source Group” Dimension Applies Retroactively – Facebook Affected Digital Analytics
GA4 AI Assistant Channel: Which Visits It Counts and Which Land in Direct Digital Analytics

OTHER TOOLS

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