Google Tag Manager<\/a> is strictly a tag delivery system<\/em>, and it\u2019s very careful not to collect any analytics data<\/a> on its own. This is most likely a deliberate choice, because if GTM was to start collecting data, it would introduce additional barriers to adoption.<\/p>\n Nevertheless, being a tool that consolidates the design, development, deployment, and testing of all the marketing and analytics pixels, code snippets, and utilities running on a website or a mobile app, lacking the necessary features for auditing and monitoring has always seemed like an oversight.<\/p>\n <\/p>\n <\/a><\/p>\n<\/div>\n Recently, Google Tag Manager introduced a new API for custom templates<\/a>: In this article, Mark Edmondson<\/strong> and I will help you get started. We\u2019ll introduce how the new API works and how you can use it to build the necessary tags and triggers in GTM for monitoring purposes. We\u2019ll also show you how to use powerful, cheap, and scalable features of the Google Cloud Platform<\/a> to create the backend for the monitoring system, and finally we\u2019ll give you some ideas for how to visualize the data in a Google Data Studio<\/a> report.<\/p>\n You can also check out this video<\/a>, where I go through (almost) the same steps in video format.<\/p>\n \n ![\"Google](\"https:\/\/www.simoahava.com\/images\/2019\/07\/google-tag-manager-monitor.jpg#ZgotmplZ\")
<\/p>\naddEventCallback<\/code><\/a>. This API lets you create your own monitoring system for your container. With community effort and support from Google, the new API will introduce a number of solutions around tag monitoring and auditing in the near future.<\/p>\n