It’s Time to Move: What the New Version of Google Tag Manager Means for Your Business

Estimated Reading Time: 5 minutes
July 11, 2019
It's Time to Move Google Tag Manager

Is your business ready for the changes coming to Google’s data measurement infrastructure?

You probably rely on Google Analytics as a marvelous tool to understand your customers and better target their needs across both your web and mobile app platforms. But with changes on the way from Google, particularly with some legacy mobile app tracking and measurement platforms, the stability of your analytics might be at risk if you’re not prepared.

What’s changing?

The current version of Google Tag Manager (version 4, or “Legacy”) for mobile apps will no longer be supported by Google as of March 2020. But, limitations on the functionality of GTM version 4 have already begun. Due to these limitations and hard dates for deprecation, everyone will need to upgrade to Google Tag Manager version 5. This requires the implementation of new GTM and Firebase Software Development Kits and a switch from the current GTM in-app, data layer approach to the new Firebase, event-based, data collection process.

When will service be affected?

Here are the key dates and milestones shared by Google, subject to change (though unlikely):

  • As of June 30, 2019: You’re no longer able to create new containers of the Android (Legacy) or iOS (Legacy) types.
  • Jan. 31, 2020 (at the earliest; Google is still finalizing the official date): You’ll no longer be able to publish new changes to Legacy mobile app containers. The container versions that are currently live as of this date will continue working in your mobile apps, but will now be in read-only mode.
  • March 31, 2020: After this date, legacy mobile app containers will be removed from Google Tag Manager and will not longer be accessible. Your legacy mobile app containers will no longer gather or return any data. Requests will return a 204 (no content) response.

Will analytics measurement be affected?

Yes, for your mobile applications in particular. For your business to maintain uninterrupted Google Analytics tracking, you must make changes in the app source code. You’ll have to migrate the current data layer code in-app to Firebase-syntax data collection code, install a new Firebase SDK (if not already in place), create new GTM v5 containers, and test the new set-up for reliability to avoid any interruptions. InfoTrust can provide you with assistance to make this process as painless as possible. 

Please note, if you are already using Firebase Analytics and/or the newer version of Google Tag Manager for mobile apps, v5 (Firebase powered events and data collection), there is nothing to worry about and you are already in the safe zone. These dates are only meant to deprecate the measurement tracking for **Google Tag Manager v4 Legacy Containers** in mobile apps. This DOES NOT mean you have to move to Firebase Analytics and it DOES NOT mean GA for mobile apps is going away. Simply the means of collecting data in the app, if using GTM, is going through an upgraded version. You will need to update your source code to use the new GTM v5 SDK and Firebase event code, as described later but feel free to continue using GA as normal (if deployed in the new GTM v5 Firebase-powered containers).

Benefits of Switching

It’s not all bad news. Though the migration to GTM v5 will take some work, there are some major advantages. Most importantly, switching ensures uninterupted information flow to Google Analytics, so you never lose touch with your customers. Also, this isn’t just a cosmetic change; the switch to version 5 comes with more tags, new GTM capabilities, and new Firebase analytics UI capabilities.

Why InfoTrust?

If you’re still using version 4 of Google Tag Manager, this could be a complex project that requires input from many different parts of your business from IT to software development to analytics to marketing. Migrating platforms may be a little annoying, but it’s much less annoying than losing access to the key analytics tools or data you rely on to understand your customers and make strategic business decisions. Switching prevents headaches later and unlocks useful new features now. InfoTrust can help your organization come up with a solid migration plan, help work with your engineers to fully test and configure all the reporting + data measurement, and partner with your team to make the most out of the data collection and mobile application data you will continue to capture.

If you have any questions about any aspect of this process, don’t think twice about reaching out. We’d love to help. InfoTrust is here to make sure you’re data confident.

Author

  • Amin Shawki currently oversees our client delivery, focusing on analytics and governance as SVP at InfoTrust. In this role, he leads our industry teams and has been fortunate to work across various partners in all verticals and regions, providing best-in-class recommendations around data strategy, data collection, and maximizing value of data. ‌His role is to ensure confidence in not only organizations’ data practices but in the InfoTrust team providing the products and solutions leading to value. In his free time, he loves going full dad-mode with his little ones and French bulldog, while also playing golf and board games with any remaining time and headspace.

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Last Updated: August 2, 2019

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