Enhanced measurement

Enhanced measurement is a group of options on a Google Analytics 4 web data stream. Google says no code changes are required. Once an option is on, the Google Analytics tag starts sending its events right away. An Editor or above can switch options on or off one at a time, except page views, which cannot be turned off.

Each event has a narrow trigger. A scroll event fires the first time a visitor reaches 90 percent of the depth of a page. An outbound click is a click on any link that leads away from the current domain. Site search fires when a results page address carries one of five query parameters, such as q or s. Video events work only for embedded YouTube videos with JS API support enabled, and report progress at 10, 25, 50 and 75 percent.

Form interactions produce two events. The form_start event fires the first time a visitor interacts with a form in a session. The form_submit event fires when the visitor submits it. The parameters sent with form_submit are the form id, its name, the address the form submits to, and the submit button text. None of them shows whether an inquiry reached anyone.

A similar tool shows why that gap matters. Google Tag Manager has a form submission trigger with a Check Validation option. Selected, it fires only if the form is successfully sent. Left unselected, the trigger fires whenever a user attempts to submit the form. For counting people who successfully submit contact details, the Analytics help pages build a new event from page views of the confirmation page and mark it as a key event.

Some enhanced measurement events become key events without anyone picking them. When Ads Personalization is enabled with a linked Google Ads account, Google Analytics marks view_search_results, the site search event, as a key event. A standard property can mark up to 30 events as key events, and marking one affects reports from that point forward.