How to Set Up GA4 Goals and Conversion Events

This GA4 conversion events setup guide skips the confusion: GA4 doesn't have "Goals" the way Universal Analytics did. It has events, and you mark the important ones as key events (formerly called conversions). Here's how to set that up without drowning in noise.

Step 1: Understand What GA4 Already Tracks Automatically

GA4 auto-tracks several events without any setup: page_view, session_start, first_visit, scroll (90% depth), and click (outbound links). Don't rebuild these manually, check your GA4 property's Admin → Events list first to see what's already firing.

Step 2: Identify Your Real Conversion Events

This step is the heart of any GA4 conversion events setup, get the list of real events right and everything downstream follows.

For most sites, the events worth marking as key events are:

• purchase (e-commerce, includes value and currency)
• generate_lead (form submissions)
• sign_up
• A custom event for phone/WhatsApp clicks, since GA4 doesn't track these automatically

Step 3: Set Up Enhanced Measurement First

In Admin → Data Streams → your web stream → Enhanced measurement, make sure form interactions and outbound clicks are toggled on. This gets you partial event data without any code.

Step 4: Add Custom Events With Google Tag Manager

For events GA4 doesn't catch automatically (like a WhatsApp click), create a GTM trigger on the click, and a GA4 Event tag that fires generate_lead (or a custom event name) with relevant parameters, e.g., method: "whatsapp".

Step 5: Mark the Event as a Key Event

Marking events as key events is what finally makes your GA4 conversion events setup usable for reporting and Google Ads import.

Once the event is firing correctly (verify in GA4 → Admin → DebugView with a live test), go to Admin → Events, find it in the list, and toggle Mark as key event. This is what makes it available for reporting and for import into Google Ads.

Step 6: Don't Over-Track

Resist marking every possible interaction as a key event. If everything is a "conversion," your reporting stops being useful for prioritization. Stick to actions with clear business value.

Keeping GA4 Conversion Events Setup Clean Long Term

Revisit your GA4 conversion events setup whenever you launch a new page type or funnel step, rather than letting it drift out of date.