Q: Is GA4 free?

GA4 is free for standard usage. GA4 360 (enterprise version) has paid tiers with higher data limits, SLAs, and more advanced features. For most small and medium businesses, the free GA4 provides all the data and functionality needed.

Q: What is the biggest difference between GA4 and Universal Analytics?

The fundamental difference is the data model. UA = session-based (groups hits into sessions). GA4 = event-based (every interaction is an individual event with flexible parameters). This makes GA4 more flexible and accurate for modern multi-device user journeys, but requires relearning reporting structures for UA users.

Google Analytics 4 is a fundamental rethinking of web analytics — replacing the session-based model of Universal Analytics with an event-based model that better reflects how users interact across websites and apps in a multi-device world.

GA4 vs Universal Analytics

UA tracked sessions and pageviews as the primary units. GA4 tracks events (every interaction is an event). UA had a 10-hit limit per session. GA4 has virtually unlimited events. GA4 includes built-in privacy controls for a cookieless future. GA4 uses BigQuery integration for advanced analysis.

Key GA4 Reports

Acquisition (where traffic comes from), Engagement (user behavior on site — replaced Behavior in UA), Monetization (e-commerce revenue and events), Retention (user return rates), and Demographics (audience characteristics). Explore section enables custom funnel analysis and path exploration.

Events in GA4

Every user interaction is an event: page_view, scroll, click, form_submit, video_play, purchase. Automatically collected events (page_view, session_start, first_visit) require no setup. Enhanced measurement events (scrolls, outbound clicks, site search, video engagement) activate with one toggle. Custom events require GTM or code implementation.

GA4 Conversions

You mark any event as a conversion — replacing Goals in Universal Analytics. Recommended conversions: form_submit, purchase, generate_lead, phone_call_click. GA4 integrates with Google Ads to import conversions directly, eliminating double-tracking.

Predictive Audiences

GA4 uses machine learning to create predictive audiences: likely purchasers (users likely to buy in the next 7 days), likely churners (users likely to stop engaging), and predicted revenue (expected revenue from active users). These can be used for Google Ads targeting.

GA4 Setup Essentials

Create GA4 property and install via Google Tag Manager, configure Enhanced Measurement, mark key events as conversions, connect to Google Ads for conversion import, link to BigQuery for raw data export, and configure data retention to 14 months (default is 2 months).

Step-by-Step Action Plan

1Create GA4 property in Google Analytics admin

2Install GA4 via Google Tag Manager (single tag manages all events)

3Enable Enhanced Measurement in Data Streams settings

4Create custom events for key conversions (form submits, phone clicks)

5Mark priority events as Conversions

6Connect GA4 to Google Ads account

7Set data retention to maximum (14 months) immediately

8Configure Audiences for Google Ads remarketing

Frequently Asked Questions

Yes. Google sunset Universal Analytics on July 1, 2023 — it stopped processing new hits. GA4 is now the only version of Google Analytics. If your site was running UA without GA4, you have a gap in analytics data. GA4 should be installed on all websites immediately if not already done.

In GA4, any event can be marked as a conversion. Steps: (1) Navigate to Admin → Events in your GA4 property, (2) Find the event you want to mark as a conversion (e.g., form_submit, purchase), (3) Toggle "Mark as conversion" to on. If the event does not exist yet: create it via Google Tag Manager (recommended) or directly in GA4 using the Create Event feature for simple parameter-matching rules. Priority conversions to set up: form_submit (lead generation), purchase (e-commerce), phone_call_click, file_download.

Exploration reports are GA4's advanced analysis workspace — equivalent to Custom Reports in UA but more powerful. Key exploration types: Funnel Exploration (visualize multi-step user journeys and identify drop-off points), Path Exploration (see the actual sequences of pages/events users visit), Segment Overlap (compare behavior of different user segments), User Lifetime (analyze LTV and behavior across a user's entire history). Access via the Explore section in GA4. These reports answer questions the standard Reports section cannot — essential for CRO and customer journey analysis.

Connecting GA4 to Google Ads: (1) In Google Ads, go to Tools → Linked accounts, (2) Find Google Analytics and click Details, (3) Select your GA4 property and click Link, (4) In GA4 Admin, go to Google Ads Links and confirm the connection. Once linked: you can import GA4 conversions into Google Ads for Smart Bidding, see Google Ads campaign data in GA4 Acquisition reports, and create GA4 Audiences for Google Ads remarketing. This integration is essential — use GA4 conversions as the source of truth for Google Ads optimization.

Data sampling occurs in GA4 Exploration reports when your data volume exceeds 10 million events for the date range queried — GA4 analyzes a sample rather than all data. Sampled data shows a warning icon in the report. Avoid sampling: (1) Narrow your date range to reduce event volume, (2) Apply specific segments or filters to reduce data scope, (3) Use the standard Reports section instead of Explorations (standard reports use aggregated unsampled data), (4) Export raw data to BigQuery (GA4 free tier includes a BigQuery export — use this for unsampled analysis of large datasets).

Want Us to Implement This For You?

Now that you know what good marketing looks like, let our team execute it for your business. We apply every strategy you've read about — with proven results.

Full implementation by certified marketing experts

AI-powered execution for faster, better results

Real-time reporting so you always know what's working

No long-term contracts — cancel anytime

What is Google Analytics 4? GA4 Guide for Marketers

GA4 vs Universal Analytics

Key GA4 Reports

Events in GA4

GA4 Conversions

Predictive Audiences

GA4 Setup Essentials

Step-by-Step Action Plan

Frequently Asked Questions

Frequently Asked Questions

Related Articles

What is CRO? Conversion Rate Optimization Explained

Website Speed Optimization: Why It Matters & How to Fix It

What is CRO? Conversion Rate Optimization Explained

Website Speed Optimization: How to Fix Slow Pages

Ready to Apply This to Your Business?

Want Us to Implement This For You?

Get Expert Help