A tag, in Google Tag Manager is a small portion of code, a snippet, which, thanks to GTM, allows you to pass some information of your site to third-party platforms (eg: Google Analytics, Facebook, Hotjar, Paypal etc.).
GTM offers you several tags from the Google’s environment (Ads, Analytics, Optimize etc.), a series of third party tags and the possibility to create others (Custom).
To work,the tag needs Trigger and Variable
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