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GA4 and Google Ads almost always disagree on revenue, even for the same business. The reason isn’t a bug — the two platforms collect, attribute, and time revenue differently by design.

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The short version

These differences mean the two numbers will rarely match, even for the same store on the same day.

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Why the numbers diverge

GA4 by default distributes credit across multiple touchpoints (data-driven attribution) or assigns it to the last interaction across all channels (last-click). Google Ads attributes only to the last Google Ads click.A customer who clicked a Meta ad, then a Google ad, then bought, will show up differently in each platform.
GA4 sees revenue from every channel — paid ads, organic search, direct visits, email. Google Ads only sees revenue tied to Google Ads campaigns. GA4 totals will almost always be higher.
A purchase 45 days after the click counts in Google Ads (with a 90-day window) but may have fallen outside the GA4 window. A purchase made the same day counts in both. Longer sales cycles widen the gap.
GA4 records revenue on the day the purchase occurred. Google Ads records revenue against the day the ad was clicked. For the same purchase, the two platforms can attribute revenue to different days.
GA4 may undercount when:
  • Users block cookies or use privacy-focused browsers.
  • Purchase events aren’t firing correctly on the site.
  • Consent banners block GA4 until the user opts in.
When the same conversion is tracked by both a Google Ads conversion tag and a GA4 import, Google Ads can count it twice. To check: in Google Ads → Tools → Conversions, look for duplicate conversion actions feeding the same event. Either deactivate the GA4 import or set the Google Ads tag to “secondary”.
Even for a single purchase tracked by both GA4 and Google Ads, the recorded revenue can differ — taxes, shipping, discounts, and currency handling may be included in one platform and not the other. Confirm both tags receive the same value parameter.

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How this looks on a dashboard

When both GA4 and Google Ads are connected as data sources, dashboards show revenue from each platform as separate metrics:
  • GA4 revenue comes from the GA4 connector’s revenue metric.
  • Google Ads revenue comes from the Google Ads connector’s Revenue or Conversion value metric (metrics.conversionsValue).
If the ad account’s currency differs from the workspace currency, conversion values are converted at the current day’s exchange rate. See Multi-currency reporting. For per-connector metric definitions:

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How to reconcile

The two numbers won’t match, but they should be in the same ballpark for high-converting accounts.
  1. Confirm both data sources are connected and the date ranges align.
  2. Check the conversion-window setting on each platform.
  3. Confirm there’s no double-counting on the Google Ads side (GA4 import + native Google Ads tag firing the same event).
  4. Use GA4 as the source of truth for total revenue, and Google Ads as the source of truth for the revenue attributable to Google Ads campaigns.

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Still stuck?

Contact support

Email support@adriel.com with the dashboard URL, the GA4 property ID, the Google Ads account ID, the date range, and screenshots of the conflicting numbers if possible.