Triggers

General guidelines for creating triggers

Triggers are the conditions that cause tags to fire. A basic example of a trigger is a click on any HTML element of type button.

You may also create triggers based on CSS selectors:

CSS selector	result
.btn	Track clicks on elements with the class btn
.btn, .btn-large	Track clicks on elements with the class btn , and elements with class .btn-large
.btn.btn-large	Track clicks on elements with both btnand btn-largeclasses
button[type=submit]	Tracks all buttons with the type attribute set to submit

We don't have strict standards around triggers at this time, though we can provide some guidelines on creating them.

• Be careful about which selectors you use for triggers. If a class is applied liberally to your markup, Tag Manager will pick up clicks to all of them.

• If URLs change frequently, you may wish to avoid tying a trigger to a page by URL. If you can push a unique identifier into the dataLayer, your triggers will be less likely to break.

• If markup changes frequently, you may wish to ask developers to add a persistent ID you can hook into for key elements

• The difference between the "All elements" and "All links" trigger is that the latter will walk up the DOM to look for the nearest a element, while the latter will focus only on elements that contain exactly the selector you assigned