Learn how to analyze user acquisition by session source/medium in Google Analytics 4 (GA4) to evaluate marketing effectiveness and optimize your budget through a detailed report.
Understanding User Acquisition by Source/Medium in Google Analytics 4
Tracking how users arrive at your website through different marketing channels is crucial for evaluating your marketing effectiveness. By analyzing users by session source/medium in GA4
, you can understand which channels bring in the most engaged users and optimize your marketing budget accordingly. We’ll show you how to create this essential report in Google Analytics 4
.
Basic Report Structure
- Report Type: Free Form Exploration
- Primary Dimension:
Session source/medium
- Secondary Dimension:
User source/medium
- Key Metrics:
Total users
,New users
,Average engagement time
- Visualization: Table format with optional bar chart
Steps to Create the Report
- Open
GA4
and navigate to the Explore section. - Click the Blank template to start a new exploration.
- Under the Dimensions tab, click the + button and search for Session source/medium and User source/medium, check both, and click Import.
- Under the Metrics tab, click the + button and search for Total users, New users, and Average engagement time, select all, and click Import.
- Drag Session source/medium to the Rows section.
- Drag Total users, New users, and Average engagement time to the Values section.
- Optional: Add User source/medium as a secondary dimension by dragging it below
Session source/medium
in the Rows section. - Set your desired date range in the report settings.
- Click the Settings icon and set the table row limit to 500 to see more data.
Important Dimensions and Metrics
- Session source/medium: Shows the origin of sessions (e.g., google/organic, facebook/cpc)
- User source/medium: Indicates the first touch attribution for users
- Total users: Number of unique users from each source
- New users: First-time visitors from each source
- Average engagement time: How long users from each source typically engage with your site
Actionable Insights
- Identify your best-performing channels based on user engagement time and allocate more budget to these sources.
- Compare new vs. total users to understand which channels are better at acquiring new visitors.
- Look for sources with high engagement time but low user counts as potential opportunities for scaling.
- Use the insights to adjust your marketing mix and campaign spending.
- Monitor changes in source/medium performance over time to detect trends or issues.
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