You don't need to understand all of Google Analytics 4 to get real value from it. For most small businesses, ten reports answer almost every useful question: where visitors come from, what they do, and whether they become customers. Below I go through each one, what it tells you and what to look for. Report names and placement in GA4 change from time to time, so use the search bar in GA4 if you can't find one where you expect it.
Before you start: are key events set up?
Many of the reports below are only useful if GA4 knows what a result is for your business. In GA4, important actions are marked as key events (previously called conversions), for example a form submission, a purchase or a click on your phone number. If nothing is marked, you will see traffic but not results. Fix that first.
The 10 reports
1. Reports snapshot
The overview page you land on. Use it as a quick pulse check: users, sessions, key events and revenue over the selected period. Don't make decisions here, just spot anything unusual worth digging into.
2. Realtime
Shows activity in roughly the last half hour. Its main practical use is testing: submit your own form and check that the event shows up. It's also handy to confirm that a newsletter or campaign launch is sending traffic.
3. Traffic acquisition
Probably the most useful report. It shows sessions by channel (Organic Search, Paid Search, Paid Social, Direct, Email, Referral) and, if you add the key events column, which channels lead to results. Switch the dimension to "Session source / medium" for more detail, such as google / cpc or facebook / paid.
4. User acquisition
Similar, but based on how each user first found you. Compare it with traffic acquisition: a channel that brings many first-time users but few key events may be good at awareness rather than closing.
5. Landing page
Shows which pages people enter your site on, with sessions, engagement and key events. This is where you find pages that attract traffic but don't convert, which are often the quickest wins.
6. Pages and screens
All pages viewed, not just entry pages. Useful for seeing which content gets read, and how long people engage with it. Check that your most important service or product pages actually get views.
7. Events
A list of everything GA4 records: page_view, scroll, click, form submissions and any custom events. Use it to check that tracking works: if your "generate_lead" event shows zero while you know forms come in, something is broken.
8. Key events (conversions)
Shows the actions you've marked as key events and how often they happen. Combine it with the source / medium dimension to see which channel produces each type of result.
9. Ecommerce purchases or Monetisation overview (webshops)
For webshops: revenue, purchases, average purchase value and which products sell. If revenue here differs a lot from your order system, the ecommerce tracking needs attention. Some difference is normal because of consent choices and ad blockers.
10. Tech details (device)
Splits traffic by device category, browser and operating system. The key check: compare conversion rate on mobile vs desktop. If mobile has most of the traffic but far fewer key events, your mobile experience is often the problem.
A quick weekly routine
| Question | Report |
|---|---|
| Did anything change dramatically? | Reports snapshot |
| Which channels bring results? | Traffic acquisition + key events |
| Which pages should I improve? | Landing page |
| Is tracking still working? | Events / Realtime |
| Is mobile underperforming? | Tech details |
Fifteen minutes a week with these is enough for most small businesses.
A worked example
Illustrative example: a Gothenburg cleaning company sees 2,000 sessions per month. In Traffic acquisition, Paid Search brings 600 sessions and 24 form submissions (4%), while Paid Social brings 800 sessions and 8 submissions (1%). In the Landing page report, the page for office cleaning converts well, while the homepage gets most paid social traffic but few leads. A sensible next step would be to send social traffic to a dedicated offer page and test again, rather than simply cutting the channel.
Common beginner mistakes
- Looking at total users without connecting them to key events.
- Not tagging campaign links, so paid social and email end up as "Direct" or "Referral". Use UTM parameters; my UTM builder makes it easy.
- Comparing GA4 numbers with Google Ads or Meta and expecting them to match. They use different attribution and counting rules.
- Forgetting that consent settings affect how much GA4 can measure.
- Leaving the default data retention period without checking whether it suits your needs for exploration reports.
Key takeaways
- Set up key events first, otherwise the reports only show traffic.
- Traffic acquisition and Landing page answer most business questions.
- Use Realtime and Events to verify that tracking works.
- Compare mobile vs desktop conversion rates regularly.
- Tag your campaign links so channels are reported correctly.
If your GA4 setup feels messy or you don't trust the numbers, that's exactly what I help with in web analytics. You can also run the free website health check for a quick first look.
Want a second pair of eyes on your GA4? Request a free review of your setup.