GA4 Tutorial for Beginners: Set Up and Read Your First Reports

You’ve launched a website, posted on Instagram and maybe run a few ads. Now someone asks, “So, is it working?” and you don’t know. Google Analytics 4 answers that question, but its menus can feel like a cockpit the first time you open them. This GA4 tutorial for beginners walks you through a clean setup in about an hour, then shows you the four reports that answer real business questions.

GA4 and UTM tracking are taught hands-on in Month 3 of the Omebly Digital Marketing course, so this is also a preview of how we teach it.

Quick answer: Create a GA4 account and property, add a web data stream, and install the Google tag on every page. Confirm it works in Realtime, extend data retention to 14 months, mark your important actions as key events, and use UTM links for campaigns. Then read four reports: Traffic acquisition, Pages and screens, Events or key events, and Tech for devices.

GA4 in plain English

GA4 is built around events. Every page view, scroll, click and form submission is an event, and each can carry details (parameters) like the page title or link URL.

A few terms you’ll meet constantly:

Term	What it means
Property	The container for one website or app’s data
Data stream	A source of data feeding the property, such as your website
Measurement ID	Your stream’s ID, starting with “G-”
Event	Any tracked action: page_view, scroll, click, form_submit
Key event	An event you mark as important, such as a lead or purchase
Session	One visit, made up of events
Engaged session	A visit that lasted over 10 seconds, viewed 2+ pages, or triggered a key event
Engagement rate	Engaged sessions as a share of all sessions

If you used the old Universal Analytics, note that “bounce rate” in GA4 is simply the opposite of engagement rate, and “conversions” are now called key events.

Part 1: Set up GA4 step by step

Step 1: Create the account and property

1. Go to analytics.google.com and sign in with the business Google account (not a personal one that might leave with an employee).
2. Open Admin and create an account for the business.
3. Create a property. Set the time zone to India (or your market) and the currency to Indian rupee, so revenue and daily reports line up with your business.
4. Fill in business details and objectives. These only change which reports appear by default.

Step 2: Add a web data stream

Choose Web, enter your website URL and a stream name. Leave enhanced measurement switched on. It tracks page views, scrolls, outbound clicks, site search, video engagement, file downloads and form interactions automatically, with no code.

Copy your Measurement ID (G-XXXXXXX).

Step 3: Install the Google tag

Pick one method, not several, or you’ll count visits twice:

• Platform integration: WordPress (for example, Google’s Site Kit plugin), Shopify and most website builders let you connect GA4 in settings.
• Direct code: paste the Google tag snippet into the <head> of every page.
• Google Tag Manager: best when you’ll manage several tags and custom events.

Google’s own guide to setting up Analytics for a website shows the current screens for each method.

Step 4: Check it’s working

Open your site on your phone, then open Reports > Realtime in GA4. You should see yourself as an active user within seconds. If not, check the Measurement ID and that the tag is on every page, not just the homepage.

Step 5: Change the settings everyone forgets

• Data retention: in Admin, under data settings, change event data retention from the default 2 months to 14 months. This affects how far back the Explore reports can go.
• Internal traffic: define your office IP address as internal and filter it, so your own team doesn’t inflate the numbers.
• Search Console link: connect Google Search Console to see which searches bring people to your pages.
• Privacy: update your privacy policy to mention analytics cookies, and use a consent banner where your audience or law requires it.

Step 6: Mark your key events

Decide what “success” means for the site. For most small businesses it’s one of these:

• Contact form submitted
• WhatsApp button clicked
• Phone number tapped
• Purchase completed (e-commerce platforms usually send this automatically)

Find the event in Admin > Events (or create one from an existing event, such as a page_view of your thank-you page), then mark it as a key event. Most reports will then show how many visits led to that action.

Step 7: Tag your campaign links with UTMs

GA4 can’t guess that a visitor came from your Diwali WhatsApp broadcast. UTM parameters tell it:

https://example.com/diwali-offer/?utm_source=whatsapp&utm_medium=broadcast&utm_campaign=diwali_2026

• utm_source: where (instagram, whatsapp, newsletter)
• utm_medium: what type (social, broadcast, email, cpc)
• utm_campaign: which campaign (diwali_2026)

Use lowercase and keep a shared sheet of names, or “Instagram”, “instagram” and “IG” will show up as three sources.

Part 2: Read your first four reports

Report 1: Traffic acquisition (where visitors come from)

Reports > Acquisition > Traffic acquisition. The default table groups sessions by channel: Organic Search, Direct, Organic Social, Paid Search, Referral and so on.

Look at:

• Sessions per channel: where volume comes from
• Engagement rate per channel: which visitors actually stay
• Key events per channel: which sources produce leads or sales

Change the dimension to Session source / medium to see your UTM-tagged campaigns.

Report 2: Pages and screens (what people look at)

Reports > Engagement > Pages and screens. Sort by Views to see your most-visited pages, then check average engagement time. A popular page with very short engagement often means the content doesn’t match what the visitor expected.

Pair this report with our on-page SEO checklist to fix pages that get traffic but don’t hold attention.

Report 3: Events and key events (what people do)

Reports > Engagement > Events lists every event and how often it fired. Check that your key events are firing at sensible levels. Then look at key events by channel and by landing page to see which entry points lead to action.

Report 4: Tech (which devices)

Reports > Tech > Tech details (or Tech overview) shows device category, browser and screen resolution. In India, mobile usually dominates, so if your mobile engagement rate is far lower than desktop, test your site on a cheap Android phone.

A weekly 15-minute GA4 routine

Minute	Check
0–3	Realtime: is tracking still working?
3–7	Traffic acquisition: any channel up or down sharply?
7–11	Pages and screens: top pages and engagement time
11–15	Key events by source: what produced leads this week?

Write one sentence of insight and one action each week, for example: “Instagram traffic doubled but no enquiries: fix the link destination.”

Common GA4 mistakes

• Installing the tag twice (plugin plus manual code), doubling every number.
• Leaving retention at 2 months, then finding Explore reports can’t look further back.
• No key events, so you see traffic but never results.
• Messy UTMs that split one campaign into many rows.
• Counting your own visits because internal traffic isn’t filtered.
• Judging day-one data. Give reports a day or two to fill in.
• Chasing vanity numbers. More users mean nothing if key events don’t move.

If you’re running festive campaigns, our Diwali ads checklist shows how to plan tracking before the budget goes live.

GA4 setup checklist

• Property in the right time zone and currency
• One web data stream with enhanced measurement on
• Google tag installed once, on every page
• Realtime shows your test visit
• Data retention set to 14 months
• Internal traffic filtered
• Search Console linked
• Key events marked
• UTM naming sheet shared with the team

How Omebly can help

The Digital Marketing course at Omebly Academy is live, mentor-led and recorded. Tools include GA4, Google Search Console, Google Ads, Meta Business Suite, Mailchimp and Canva. The Core track ($699, 3 months) covers marketing fundamentals, SEO and Google Business Profile, then Meta Ads, Google Ads, funnels, landing pages, and GA4 and UTM tracking in Month 3. The Professional track ($1,199, 6 months) adds email automation, conversion optimisation and analytics dashboards, and the Career track ($1,999, 12 months) adds strategy, budgeting and placement assistance. There’s no job guarantee, and you get an Omebly certificate of completion with your projects listed.

To see where analytics fits in a marketing career, read our digital marketing career guide, or book a free call with a mentor.

Set up GA4 on one site this week, and read your first Traffic acquisition report next Monday.