Analytics & Tracking

Custom Event (GA4)

Quick Definition

A custom event in GA4 is an event you define and trigger via gtag(), GTM, or the Measurement Protocol — beyond GA4's default events (page_view, scroll, click, etc.).

In context

Custom events are the foundation of meaningful conversion tracking and behavioural segmentation. Common custom events for Canadian SEO programs: lead_form_submit (with form source), demo_booked (with plan tier), download_lead_magnet (with magnet ID), newsletter_signup (with source). Event parameters (max 25 per event) carry the contextual data; configure them as custom dimensions to use in reports.

Example

A Toronto B2B SaaS triggers a 'demo_booked' custom event with parameters {plan_tier, source_channel, content_cluster} — enabling granular reporting on which content clusters drive which plan tiers.

Have a question this didn't answer?

Book a free 60-minute strategy call. We'll explain how this concept applies to your specific situation.

Book a Free Call Browse 50+ Detailed Answers

Related terms

Conversion Tracking

Conversion tracking is the system of capturing user actions that represent business value, attributing them to source, and reporting on them.

Rank Tracking

Rank tracking monitors your search position for target keywords over time, typically updating daily.

UTM Parameters

UTM parameters are query string tags appended to URLs (utm_source, utm_medium, utm_campaign) that tell analytics where traffic came from.

Attribution Window

An attribution window is the time period after a marketing touchpoint within which conversions are credited to that touchpoint — typical windows are 1, 7, 28, or 90 days.

Last-Click Attribution

Last-click attribution gives 100% credit to the final marketing touchpoint before conversion.

Hotjar

Hotjar is a heatmap, session recording, and feedback tool used for UX research and CRO.

Back to all terms