Google Analytics · Tracking

How to Set Up Events in Google Analytics 4

In GA4, everything is an event, so understanding them unlocks the whole tool. Here is how to set up events in GA4, the types GA4 collects, how to create custom events, and how events power your conversions and reports.

Updated: July 2026
Written by: Andrew Odgers, Managing Director
Reading time: 8 minutes
The short answer

In GA4 an event is any interaction, from a page view to a click or form submission. GA4 collects automatic, enhanced measurement, recommended and custom events. Create custom events in GA4's admin or a tag manager, with clear names. Events become conversions when you mark the important ones as key events. Do not track everything, capture only what informs decisions.

Everything is an event

What events are, and the types GA4 collects

In GA4, an event is any interaction on your site, from a page view to a click or a form submission, and events are the core of how GA4 measures behaviour. Everything is an event; because the whole model is event-based, understanding events is central to using GA4, and to your wider reporting. GA4 collects automatic events, enhanced measurement events like scrolls and outbound clicks, recommended events, and custom events you define. They range from built-in to bespoke; because much is captured automatically, you often only add the custom ones you need.

EV 01

Any interaction

Views to clicks.

EV 02

Four types

Auto to custom.

EV 03

Feed conversions

Key events matter.

Custom events, conversions and focus

Creating custom events, the link to conversions, and staying focused

You create custom events in GA4's admin by defining conditions, or through a tag manager for more control, naming them clearly so reports stay readable. Naming matters; because clear, consistent names keep data tidy, plan your event names before creating them, ideally via a tag manager. Events become conversions when you mark the important ones as key events, so conversions are simply the events that matter most to your business. One feeds the other; because conversions are built from events, good event setup makes conversion tracking possible. Tracking every possible event creates clutter; it is better to capture the interactions that inform decisions and ignore the rest. Focus beats completeness; because noise hides signal, a lean, purposeful set of events is more useful than tracking everything.

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Frequently asked

Events in GA4

What is an event in GA4?
In GA4, an event is any interaction on your site, from a page view to a click or a form submission, and events are the core of how GA4 measures behaviour. Everything is an event. Because the whole model is event-based, understanding events is central to using GA4.
What types of events does GA4 collect?
GA4 collects automatic events, enhanced measurement events like scrolls and outbound clicks, recommended events, and custom events you define. They range from built-in to bespoke. Because much is captured automatically, you often only add the custom ones you need.
How do you create a custom event?
You create custom events in GA4's admin by defining conditions, or through a tag manager for more control, naming them clearly so reports stay readable. Naming matters. Because clear, consistent names keep data tidy, plan your event names before creating them.
How do events relate to conversions?
Events become conversions when you mark the important ones as key events, so conversions are simply the events that matter most to your business. One feeds the other. Because conversions are built from events, good event setup makes conversion tracking possible.
Do you need to track every event?
No, tracking every possible event creates clutter; it is better to capture the interactions that inform decisions and ignore the rest. Focus beats completeness. Because noise hides signal, a lean, purposeful set of events is more useful than tracking everything.