Google Analytics 4 is installed on your website. The data is flowing. But here's the question that separates businesses who actually use analytics from those who just have it installed: are you tracking the things that matter? Not pageviews, not session duration — the actual conversions that represent real business outcomes?

GA4 moved away from the old 'Goals' system in Universal Analytics and replaced it with an event-based model. Everything is an event now — a pageview, a button click, a form submission, a purchase. The trick is knowing which events to mark as 'key events' (what GA4 calls conversions) and how to set them up so you're measuring what genuinely matters for your business.

This guide is about the practical side of GA4 conversion tracking for Irish businesses. Not the theory, not the jargon — the actual setup and the decisions you need to make about what to measure.

In the old Universal Analytics, you tracked pageviews as the default and set up 'Goals' for everything else. GA4 flipped that on its head. Now everything — including pageviews — is an event. Some events are collected automatically (page_view, first_visit, session_start), some are collected through enhanced measurement (scroll, outbound click, file download, video engagement), and some you need to set up manually (form submissions, specific button clicks, custom interactions).

The power of this model is that once you understand it, tracking almost anything becomes straightforward. Want to know when someone clicks your 'Get a Quote' button? That's a custom event. Want to track when someone reaches your thank-you page after submitting a form? That's another custom event. Want to track when someone watches 75% of your homepage video? GA4's enhanced measurement already does that automatically.

The conversions you track should directly relate to how your business makes money. That sounds obvious, but most businesses either track too little (just pageviews) or too much (every minor interaction), making the data noisy and useless. Here's what typically matters for different types of Irish businesses:

Your primary conversions are contact form submissions, phone number clicks, email link clicks, and live chat engagements. These are the actions that directly lead to new business. Set each of these up as a key event in GA4. Secondary conversions might include brochure downloads, service page visits of a certain duration, or blog post reads that lead to a service page visit — these indicate interest but aren't direct leads.

Your primary conversion is obviously the purchase event. But you should also track add_to_cart, begin_checkout, and add_payment_info events to build a complete funnel view. When you can see that 1,000 people viewed a product, 200 added it to cart, 80 started checkout, and 50 completed the purchase, you know exactly where the leaks are. GA4's ecommerce events are standardised — use the recommended event names and parameters so you get the full benefit of GA4's built-in ecommerce reports.

For businesses where the website generates leads rather than direct sales, track newsletter sign-ups, resource downloads (guides, whitepapers, templates), webinar registrations, and free trial or demo requests. Each of these represents someone moving from anonymous visitor to known lead, and they have different values — a demo request is worth more than a newsletter subscription, so weight your reporting accordingly.

For businesses where the conversion often happens offline, focus on the online actions that indicate intent: direction/map clicks, phone calls, online booking completions, menu or price list views, and opening hours page visits. These bridge the gap between online interest and offline revenue.

There are three ways to create custom events in GA4, and knowing which to use saves confusion.

GA4 Admin interface lets you create events based on existing events with additional conditions. For example, you can create a 'contact_page_view' event that fires when a page_view event occurs AND the page_location contains '/contact'. This is the simplest approach and doesn't require any code changes or Google Tag Manager.

Google Tag Manager gives you much more flexibility. You can fire events based on form submissions, specific button clicks, scroll depth, time on page, element visibility, and virtually any other user interaction. If you're using GTM (and you should be), this is the most powerful way to set up conversion tracking.

The gtag.js API lets developers fire events directly from your website's code. This is useful for tracking interactions that GTM can't easily detect, like successful payment confirmations from third-party checkout systems. Most Irish businesses won't need this approach unless they have complex custom functionality.

Creating an event is only half the job. To make it count as a conversion, you need to mark it as a 'key event' in GA4's admin settings. Go to Admin, then Data Display, then Key Events, and toggle on the events you want to track as conversions. Only mark events that represent genuine business value — if everything is a conversion, nothing is.

GA4 also lets you assign monetary values to conversions, which is powerful for businesses that know the average value of a lead. If you know that one in ten contact form submissions becomes a €5,000 project, each form submission has an average value of €500. Adding this value to your conversion event makes GA4's ROI calculations meaningful and helps you understand the actual return on your content and SEO investment.

Once your conversions are set up, focus on these reports:

The Acquisition report shows which channels drive your conversions — organic search, direct, social, referral. This tells you where to invest more effort. If organic search drives 70% of your form submissions, doubling down on SEO makes obvious sense.

The Landing page report shows which pages drive the most conversions. You might discover that a blog post you wrote six months ago generates more enquiries than your homepage. That's actionable intelligence — create more content like that post.

The User path exploration shows the journey visitors take before converting. Understanding that most converters visit your case studies page before your contact page tells you to make that case studies page more prominent and compelling.

The Funnel exploration (for ecommerce) shows exactly where customers drop out of your buying process. If 40% of people abandon at the shipping costs step, you know what to address.

If your conversions aren't appearing in GA4, check these common issues. First, use GA4's DebugView (in Admin settings) to see events arriving in real time — if they appear there but not in reports, they just haven't processed yet (GA4 can take 24-48 hours). Second, check that the event is actually marked as a key event. Third, verify that consent mode isn't blocking the event — if a user hasn't consented to analytics cookies, the event won't fire. Fourth, check for duplicate events (the same conversion being counted twice per session).

The GA4 DebugView combined with GTM's Preview Mode gives you a complete picture of what's happening. Use both together when troubleshooting — GTM tells you whether the tag fired, and DebugView tells you whether GA4 received the event correctly.

GA4 uses data-driven attribution by default, which means it uses machine learning to distribute conversion credit across the different touchpoints in a customer's journey. Someone might find your site through Google search, return via a social media link a week later, and finally convert after clicking a direct bookmark. Data-driven attribution gives proportional credit to each of those touchpoints.

For most Irish businesses, the default attribution model works well. But it's worth understanding that the conversion numbers you see may not tell the full story for any single channel. Your blog content might be doing more conversion work than it appears if it's consistently the first touchpoint that introduces people to your business, even though the final conversion happens through a direct visit.

GA4 conversion tracking must comply with GDPR. This means analytics cookies require consent before they can be set. Google's Consent Mode helps bridge this gap — when a user hasn't consented, GA4 can still collect limited, anonymised data through 'cookieless pings' that don't set cookies. This gives you directional data while respecting user privacy.

Be realistic about the impact: with consent rates in Ireland typically between 60-80%, you'll always be missing some data. GA4's modelling features attempt to fill these gaps by estimating conversions from non-consented sessions based on patterns from consented ones. It's not perfect, but it's considerably better than having a 30% blind spot in your data.

Conversion tracking is what makes Google Analytics genuinely useful for your business rather than just an interesting curiosity. Pageviews and session counts are nice to know, but conversions are what actually matter — they're the direct line between your website and your revenue. Set them up properly, check them regularly, and use them to make better decisions about where to invest your time and money online. That's when analytics stops being a dashboard you glance at and starts being a tool that grows your business.