Understanding User Acquisition by Session Source in Google Analytics 4
Tracking where your users come from and how they interact with your site across different traffic sources is crucial for optimizing your marketing efforts. We’ll show you how to create a comprehensive report in GA4
that reveals which traffic sources bring in the most engaged users, helping you make data-driven decisions about your marketing investments.
Basic Report Structure
- Primary dimension: Session source
- Secondary dimensions: Session medium, Session campaign
- Key metrics: Total users, Average engagement time, Engaged sessions per user
- Visualization: Table format with optional bar chart comparison
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, click the + button and search for Session source, Session medium, and Session campaign. Check the checkbox beside them and click Confirm.
- Under the Metrics, click the + button and search for Total users, Average engagement time, and Engaged sessions per user. Check the checkbox beside them and click Confirm.
- Drag Session source to the Rows section of your report.
- Drag Total users, Average engagement time, and Engaged sessions per user to the Values section.
- Optional: Add Session medium and Session campaign as secondary dimensions.
- Set your desired date range in the report settings.
- Apply any relevant filters using the Filters section.
Important Dimensions and Metrics
- Session source: Shows where your traffic originated (e.g., google, facebook, direct)
- Session medium: Indicates the category of the source (e.g., organic, cpc, referral)
- Session campaign: Displays the specific campaign that drove the traffic
- Total users: Number of unique users from each source
- Average engagement time: How long users from each source typically engage with your site
- Engaged sessions per user: Shows how many meaningful interactions users from each source have
Actionable Insights
- Identify your highest-performing traffic sources based on user engagement metrics and allocate more marketing budget to these channels.
- Compare organic vs. paid performance for the same sources to optimize your marketing mix.
- Analyze which sources bring in the most engaged users and create targeted content for these platforms.
- Identify underperforming sources and either improve their performance or reallocate resources elsewhere.
- Use the insights to inform your multi-channel attribution strategy.
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