[Looker Studio] Daily Marketing Efficiency & Attribution Disparity - GA4 + Google Ads

🔍 What it helps you do

Compare daily Google Ads costs with GA4 revenue to see true performance, ROI, and attribution gaps in one simple, shop-level view.

Track daily GA4 revenue against Google Ads costs to monitor marketing efficiency. See GA4 CPC-filtered revenue, platform-reported ROAS, and the attribution disparity between GA4 and Google Ads.

Key Insights You'll Discover:

📊 Daily GA4 revenue vs cost trends

💰 Marketing ROI from GA4 cost calculations

🎯 GA4 CPC revenue view (filtered attribution)

📈 Google Ads ROAS summary (platform data) ⚖️ Attribution disparity trends and analysis

📋 Simple daily trends and detailed data tables

What This Dashboard Shows:

This dashboard gives a clean, daily view of how spend and revenue move together. It blends shop-level GA4 revenue with Google Ads costs so you can see real marketing efficiency, not just platform-reported results.

Three summaries provide complementary perspectives:

1) Total GA4 eCommerce revenue divided by Google Ads cost to show Marketing ROI (MER with Google cost only).

2) GA4 revenue filtered to Google CPC (source/medium google / cpc or paid) to show the revenue GA4 actually attributes to Google Ads.

3) Google Ads platform conversion value and ROAS, based on Google Ads tracking.

Why Attribution Matters:

Because each system measures differently, the numbers diverge. The attribution disparity report quantifies the gap between GA4 CPC-filtered revenue and Google Ads revenue, so you can monitor how much lower GA4 credits your ads.

Many shops observe GA4 showing roughly 30–40% of platform-reported revenue; your ratio will vary due to attribution models, tracking scope, and reporting delays.

Dashboard Features:

📈 Daily line charts plot total GA4 revenue versus cost, plus optional views of GA4 CPC-filtered revenue and Google Ads platform revenue.

📊 A paired table shows day-by-day values and calculated ROI, making it easy to scan peaks, dips, and seasonality.

🎯 Key performance indicators with period-over-period and year-over-year comparisons.

⚙️ Filtering options for different Google Analytics accounts and Google Ads accounts.

How to Use It:

Monitor daily MER: total GA4 revenue divided by Google Ads cost.

Compare GA4 CPC-filtered revenue and Google Ads revenue to understand attribution differences.

Watch the disparity trend; large swings can signal tracking changes, campaign mix shifts, or delayed GA4 posting.

Use the trio of summaries to report responsibly: total GA4 for business performance, GA4 CPC for conservative ads attribution, and Google Ads ROAS for platform operations.

Perfect For:

E-commerce businesses using Google Ads and Google Analytics 4 Marketing teams needing to understand true attribution performance Businesses experiencing discrepancies between platform and analytics data Teams wanting to optimize marketing efficiency with accurate data

Data Sources:

Google Analytics 4 (GA4) - Revenue and conversion data Google Ads - Cost and conversion tracking data Real-time cost updates with 48+ hour GA4 revenue reporting delay