30 October 2026

Plexo illustration for GA4 Funnel Exploration: Setup, Steps and Key Events

GA4 Funnel Exploration: Setup, Steps and Key Events

You build a GA4 funnel in the Explore section. Open Explore, pick the Funnel exploration template, name your steps, and apply. That takes ten minutes. Getting a funnel you can trust takes a little more care. This guide covers both.

We also cover key events, because a funnel is only useful when its last step is something that matters to your business.

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TL;DR

  • A funnel exploration shows how many people complete each step of a journey and where they drop off.
  • Build it in Explore with the Funnel exploration template. GA4 allows up to 10 steps.
  • Use an open funnel when people can enter at any step. Use a closed funnel when they must start at step one.
  • Mark the events that matter as key events first. Then build the funnel around them.
  • Check the Summary card before you trust the numbers.

Table of Contents

What a GA4 funnel exploration shows

A funnel exploration shows the steps people take to finish a task. It also shows how well they do at each step. Google describes it as a way to see success and failure along a defined path.

This is not the same as a standard report. Standard reports track your main business numbers. Explorations are for ad hoc questions. They let you drill down, apply segments, share and export. A funnel is one of those tools.

Google’s own Explore playbook points to funnels for journeys you can picture in steps. Shopping and checkout are the usual examples.

For a wellness brand, the journey might be:

  1. Visit the home page.
  2. View a class, treatment or product page.
  3. Start a booking or add to cart.
  4. Complete the booking or purchase.

The funnel tells you which step loses the most people. That is where you look first.

Before you build: decide the question

A funnel answers one question. Write it down before you open GA4.

Good questions are plain:

  • Where do people leave between viewing a membership page and paying?
  • Do mobile visitors drop off earlier than desktop visitors?
  • How many people who start a booking form finish it?

Bad questions are vague. “How is the website doing?” is not a funnel question.

Then list the steps. Keep them few. Each step should be something GA4 can see: a page view, a click, a form submission or a purchase. If GA4 cannot see it, fix the tracking first.

Step 1: Check that your events are being collected

GA4 is event based. Every user interaction is recorded as an event. Google’s conversions guide says this plainly.

Some events arrive on their own, such as page views. Others you set up yourself, such as a booking form submit or a click on a “Book now” button.

Before building anything, open the Realtime report. Click through your own journey. Check each event appears. If the booking confirmation does not fire an event, no funnel can count it.

If you run ecommerce, Google says ecommerce events must be implemented before the checkout funnel can show where people abandon checkout. Do that first.

Step 2: Mark your key events

Google now calls conversions “key events” in GA4. You flag the events that contribute to business success. Google says key events replace Universal Analytics goals. GA4 flags the purchase event as a key event for you.

Here is the simple difference:

Term What it means
Event Any interaction GA4 records, such as a page view or a click
Key event An event you flag because it matters to the business
Funnel step A point in a journey you choose to measure

Not every event should be a key event. Pick the few that show real progress. For a wellness brand that might be a booking confirmation, a paid membership, or a completed enquiry form.

A page view of your pricing page is a good funnel step. It is rarely a good key event.

This answers a common question: events versus conversions. Events record what happened. Key events are the ones you tell GA4 count as success. Funnel steps are the ones you choose to inspect on the way there.

Step 3: Create the funnel exploration

Now build it. Google’s funnel guide gives the path.

  1. Open your GA4 property and select Explore.
  2. Choose the Funnel exploration template.
  3. Name the report so you can find it later.
  4. Pick your date range.
  5. Click the pencil icon to edit Steps.

Start with a standard layout. Do not add filters yet. You want the plain picture first.

Step 4: Define the steps

In the step editor, give each step a clear name. “Viewed pricing” beats “Step 2”.

For each step you add a condition. Most often that is an event name, like page_view or generate_lead. You can add parameters or dimensions to narrow it down. For example, a page_view where the page location contains /pricing.

You can combine conditions with AND or OR. Google also lets you choose whether a step must follow the last one directly or can follow indirectly. You can set a time limit with the Within option. GA4 allows up to 10 steps.

A worked example for a studio that sells class packs:

Step Name Condition
1 Viewed class page page_view, page location contains /classes
2 Clicked Book now click event, link text contains “Book now”
3 Began checkout begin_checkout
4 Paid purchase

The UK Government Digital Service shows a similar build. It uses page view conditions for URLs. It also uses a navigation event with link text and page location conditions. It adds device category as a breakdown.

Your event names will differ. Use the names your own site sends.

Developers can build the same funnels through the API. Google’s Data API docs say step filters can match event names, dimensions, metrics and event parameters, with AND, OR and NOT logic. Most teams never need this. It is good to know the logic is the same.

Open or closed funnel?

This setting changes your numbers. Pick it with care.

  • Closed funnel: people must begin at step one. Anyone who enters later is left out.
  • Open funnel: people can enter at any step. They are counted from the step where they arrive.

Google’s guidance is that you toggle the funnel type based on how the journey really works. Choose from the entry rules of the journey. Do not choose by how the chart looks.

Some examples:

  • A checkout where everyone must start at the cart: closed.
  • A booking page that people reach from email, ads or social, skipping your home page: open.
  • A multi-step form that cannot be entered halfway: closed.

If you are unsure, build both. Compare them. If the open funnel shows many more people than the closed one, you have people entering mid-journey. That is worth knowing.

Step 5: Apply, then check the Summary card

Click Apply. GA4 draws the funnel.

Before you read any drop-off, check the Summary card. Google says it shows how your conditions match the data. If step three shows zero, the condition is probably wrong. Fix it now.

Common causes:

  • A typo in the event name.
  • A page path that changed.
  • A parameter that is not registered or not sent.
  • A step set to “directly followed by” when other events happen between.
  • A time limit that is too short.

Test each step on its own. Then add the next.

How to read the results

Two rules from Google matter here. People who miss a step are excluded from later steps. And only a person’s first completed sequence in the date range is reported.

So the funnel is not a count of all visits. It is a count of people who followed the path in order.

The results show completions, abandonments and abandonment rates. The GOV.UK guide says you can save the report, share it by URL and export it to Sheets, CSV or PDF.

Look for three things:

  1. The biggest drop. Which step loses the most people in absolute terms?
  2. The surprise. A step with a drop far larger than you expected.
  3. The split. Does the drop change by device, channel or location?

The GOV.UK guide notes that device category can give more detail on different groups of users. Add it as a breakdown. Mobile users often struggle with forms that look fine on a laptop.

Do not change the site after one look. Check a longer date range. Check that the drop is real and not a tracking fault.

Common mistakes

Too many steps. Ten is the limit. Four to six is usually plenty.

Using page views for everything. A thank-you page view can be a fine final step. A real event such as a purchase is better when you have it.

Mixing up the date range. A short window cuts off people who take days to decide. Wellness buyers often do. Retreats, memberships and programs are not impulse buys.

Reading it as a verdict. The funnel shows where people leave. It does not say why. Pair it with session recordings, surveys or a plain walk through the page yourself.

Ignoring the channel. A funnel that blends paid and organic traffic can hide a problem. If you plan to move ad budget based on what you see, read our guide on validating GA4 attribution before budget changes.

Funnels for a service or consulting site

Not every site sells a product with a cart. Many wellness businesses sell a consult, a trial or a booking.

The funnel is the same idea. A lead funnel might be:

  1. Landed on a service page.
  2. Viewed the pricing or process page.
  3. Opened the booking form.
  4. Submitted the form.

Your key event is the form submit or the booked call.

If you drive people to a quiz or lead magnet, the steps change a little. A guide on AI quiz funnels shows how a quiz sequence is laid out. Each question, the email capture and the result page can each be a GA4 step.

If people reach your site but do not act, the fault may not be in GA4 at all. Our piece on why websites lose visitor intent covers the page problems behind a leaky funnel. And if the leak is at booking, see how to fix booking before buying more ads.

What to do after the funnel

A funnel is a starting point. Once you know the weak step, work in this order.

  1. Confirm the tracking is right.
  2. Look at the step itself. Is it slow, confusing or broken on mobile?
  3. Change one thing.
  4. Run the same funnel again over a matching period.

Then connect the result to the rest of your system. A lead who submits a form should land in your CRM with a clear stage. We cover that in CRM lifecycle stages. Leads that stall can be caught with the ActiveCampaign recipes we have tested.

If you run Meta ads, the browser tag alone misses events. See our guide to the Facebook Conversion API. To see whether AI tools send you visitors, read how to track AI traffic.

Our view: a funnel is only as good as the system behind it

We see the same pattern in wellness brands. The funnel report is set up once. Nobody owns it. Six months later the events have drifted and the numbers are wrong.

So we do three things.

First, we write down what each step means. One line per step. Anyone on the team can read it.

Second, we tie the funnel to revenue. A drop-off rate means little until you know what a completed booking is worth. That is why we build live views of revenue, not just analytics reports.

Third, we assign an owner. Someone checks the funnel on a set day each month and acts on it.

This is how we work with brands. We do not hand over a deck. We manage the plan with you. One wellness brand we worked with moved from $65k to $110k in monthly revenue after we fixed its operations and marketing integration. You can read the P3 Recovery case study.

GA4 is a good tool. It does not fix a broken process. It shows you where the process breaks.

— Jordan

Want a second pair of eyes on your tracking?

If your funnel shows a drop you cannot explain, our Plexo Business Audit is a good place to start. It is a 90-minute session for $499 AUD, one-off. We look at where your content, operations and revenue systems are holding growth back. You leave with a tailored 90-day plan.

If you want to see how we work with wellness brands more broadly, see our content, operations and revenue services.

FAQ

Is a GA4 funnel the same as a conversion?

No. A funnel is a report that shows steps in a journey. A conversion, now called a key event in GA4, is a single event you flag as important. The last step of a funnel is often a key event, but the two are set up in different places.

How many steps can a GA4 funnel have?

Google allows up to 10 steps in a funnel exploration. Most useful funnels use four to six. More steps make the chart harder to read and the setup harder to check.

Should I use an open or closed funnel?

Use a closed funnel when people must start at step one. Use an open funnel when they can enter at any step. If you are not sure, build both and compare the numbers.

Why does my funnel show zero at a step?

The condition on that step probably does not match your data. Check the event name, the parameter and the page path. Then open the Summary card, which shows how your conditions match the data. Also check whether a direct follow setting or a short time limit is cutting people out.

Does GA4 mark purchases as key events automatically?

Yes. Google says GA4 flags the purchase event as a key event for you. Other events, such as a booking form submit, you flag yourself in the interface.

Sources

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