e.g. form submissions or a specific lead event, not your whole account
Every conversion event combined, across the account
Verdict
Almost certainly running last-click, not data-driven
At this volume it would take several months or more to clear the thresholds Google requires. GA4 doesn't pause and warn you when this happens: the report keeps the "data-driven" label and quietly falls back to last-click underneath it.
Time to clear the event threshold
about 10 months to reach 400 conversions for this event
Time to clear the account threshold
about 167 months to reach 20,000 total conversions
Based on Google's published data-driven attribution requirements: roughly 400 conversions for a given key event and 20,000 total conversions within the lookback window. This estimate assumes your current monthly volume holds steady; it doesn't read your actual GA4 account, so treat it as a strong hint to go check the real setting, not a replacement for checking it.
Skip the volume threshold entirely
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Try Lead Recorder freeThe label doesn't change, the model underneath it does
Two thresholds, one silent fallback
GA4 needs roughly 400 conversions for a key event and 20,000 total conversions in its lookback window. Fall short on either and it reverts to last-click for that event, with no banner or warning on the report.
Most local service volume doesn't clear it
A plumbing company doing 40 leads a month needs about ten months just to reach 400 conversions for one event. Most single-location businesses never get there.
The report still says "data-driven"
The model column shows whatever's selected in your settings, not whether that model actually had enough data to run. Checking the real setting takes two minutes; assuming it's fine takes none.
The methodology, in full
No hidden formula: here's exactly what this checker assumes and why.
Where do the 400 and 20,000 numbers come from?
They're Google's own published requirements for data-driven attribution to activate: roughly 400 conversions for a given key event, and 20,000 total conversions across the property, within the model's lookback window. Below those numbers, GA4 falls back to last-click attribution for that event without flagging it on the report.
What's a "lookback window" and why doesn't the checker ask about it?
It's the trailing period GA4 uses when it counts conversions toward those thresholds, and it varies (commonly 30 to 90 days) depending on your conversion event settings. This tool doesn't have access to your actual GA4 account, so it estimates using your current monthly volume instead. It's a strong hint, not a substitute for checking the real setting in Advertising → Attribution settings.
My report says "Data-driven" in the model column. Doesn't that mean it's active?
It means data-driven is the model selected. It doesn't confirm every event actually has enough volume to be modelled that way. GA4 doesn't surface a separate warning when a specific event falls back to last-click under the hood, which is the entire reason this gap is easy to miss.
If I am running last-click, is that automatically wrong?
No. Last-click is a legitimate, simple model, and for some businesses it's genuinely fine. The problem isn't last-click itself, it's a report labelled "data-driven" that's actually running last-click underneath, which makes people trust the attribution more than the underlying volume supports.
How accurate is this checker?
It's a volume estimate based on Google's own documented thresholds, checked as of September 10, 2026. It assumes your monthly conversion volume stays roughly steady and doesn't read your actual account, so treat a borderline or last-click result as a reason to go check Advertising → Attribution settings directly, not as a final answer.
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