Google Tag Manager Readiness Checklist

If you’re constantly working with Google Tag Manager, you’ve probably started noticing some repetitions, each project requires checking the same set of things/settings/data over and over again: Have you double-checked whether all required Enhanced E-commerce data is in place? What about custom dimensions? The list could go on and on.

After implementing GTM on various projects, I’ve started writing down a list of things I need to check in different stages of implementation.

So without further ado, here’s a Google Tag Manager checklist which contains 73 things you should keep in mind before, during and after the GTM setup is launched. Just enter the email below to subscribe to Analytics Mania’s newsletter and get the checklist straight to your inbox.



All items in the GTM checklist are split into following categories:

  • Planning
  • Preparing the website and installation of Google Tag Manager
  • Instructing your team about the Data Layer
  • Preloading the Data Layer with user data
  • Preloading the Data Layer with E-commerce data
  • Other page information
  • Tags, trigger, variables
  • Google Analytics E-commerce
  • Miscellaneous


Improve the quality of your GTM setups

With this checklist, you’ll be sure that nothing goes unnoticed and that you haven’t forgotten some key part of the Google Tag Manager container.

Even though some of these items are optional and vastly depend on the complexity and structure of the project you’re working on, it’s still a good thing to have them all in one place.





About the Author

My name is Julius Fedorovicius and I run Analytics Mania. Since 2016, the blog has grown to hundreds of thousands of monthly visitors and has been already mentioned on,,,, and many other high-profile websites.

I also run the Google Tag Manager community on Facebook, host GTM training workshops, and have launched online courses.