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GTM & GA4 glossary

GTM glossary

Built-in variables

Ready-made variables in GTM for common values such as Page URL, Click Text and Form ID. You switch them on rather than build them.

Also known as: Built-in variable

On this page
  1. In plain English
  2. Example
  3. Official documentation
  4. Related terms

In plain English

A handful are switched on by default, including Page URL, Page Path, Page Hostname, Referrer and Event. Others, such as the click and form variables, stay off until you need them.

To switch one on, go to Variables, click Configure in the Built-In Variables section and tick the ones you want.

If a click trigger isn't working, it's often because the click variables it relies on haven't been switched on yet.

Example

To track clicks on a "Book now" button, switch on Click Text, then create a click trigger with the condition Click Text equals Book now.

Official documentation

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