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A consistent GA4 taxonomy, ready for implementation.

Turn business actions into an event and parameter specification before anyone adds tags to GTM or gtag.

GA4 event reference dataLayer generator

  1. 01
    Choose a starting pointEcommerce, leads, SaaS or a blank plan.
  2. 02
    Define eventsName the action, category and trigger.
  3. 03
    Add parameters and exportValidate the plan and hand it to the team.

Working document

Build the event specification

Changes are saved automatically in this browser.

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01
Import / export
Naming convention: lowercase snake_case

Names start with a letter, contain only letters, numbers and underscores, and may have up to 40 characters. Each event may send up to 25 event parameters.

Verified July 14, 2026 · method and GA4 limits

Recommended templates follow Google's current event reference. Monetary value and currency are conditional; every ecommerce item must include item_id or item_name. Enhanced Measurement can already collect form_start and form_submit, so do not send duplicates manually. Validation also checks reserved prefixes and parameter value limits; reserved parameter names may not be registered as your own custom dimensions or metrics.

GA4 collection limits Recommended events

Step 02

Events in the plan

Select a row to edit its parameters in the parameter panel.

Swipe the table horizontally

Event Category Trigger / description

From specification to implementation

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