Analytics & Tracking

Custom Event

Quick Definition

A custom event is a user interaction tracked beyond GA4's automatic events, defined for your specific business needs.

In context

Examples: form_submit, phone_click, booking_complete, brochure_download. Configure through GTM with appropriate triggers and parameters. Mark conversion-relevant events as conversions in GA4 settings.

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Related terms

Conversion API (CAPI)

Conversion API is the server-to-server measurement protocol used by Meta, Google, TikTok, and others to send conversion events directly from your server to the ad platform — bypassing browser-side tracking constraints.

Enhanced Measurement

GA4's Enhanced Measurement automatically tracks common events: scrolls, outbound clicks, site search, video engagement, file downloads, and form interactions — without code changes.

CrUX (Chrome User Experience Report)

CrUX is Google's public dataset of real-user performance data from Chrome users who opt in, used to measure Core Web Vitals.

Conversion Rate

Conversion rate is the percentage of sessions or users who complete a defined conversion action.

GA4 (Google Analytics 4)

GA4 is Google's current analytics platform, replacing Universal Analytics in 2023. It uses an event-based data model rather than session-based.

Conversion

A conversion is any meaningful user action you track — form submission, phone call, booking, purchase, video play, file download.

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