What are Tags and triggers in Google Tag Manager?

Tags fire in response to events. In Google Tag Manager, a trigger listens to your web page or mobile app for certain types of events like form submissions, button clicks, or page views. The trigger tells the tag to fire when the specified event is detected.

Tag: A tag is code that send data to a system such as Google Analytics.

Trigger: A trigger listens for certain events, such as clicks, form submissions, or page loads. When an event is detected that matches the trigger definition, any tags that reference that trigger will fire.