Data Layer in Google Tag Manager || GTM Data Layer Tutorial with examples

Learn the most important component of Google Tag Manager - Data Layer. Understanding the Data Layer is key to successful Google Tag Manager setups.

- Learn how data can be access from the Data Layer (with custom event trigger and Data Layer Variable)
- Learn the 3 most common rookie mistakes that you should avoid at all costs while working with the Data Layer.

=== LINKS ===

📕 Data Layer Cheat Sheet

✭ Intermediate-Advanced Google Tag Manager course

✭ Video: how to install Google Analytics 4 with Google Tag Manager

=== TIMESTAMPS ===
00:00 - Intro
00:53 - What is Data Layer
09:03 - How to read data from the Data Layer
19:24 - 3 data layer rookie mistakes
21:22 - Final words

=== CONNECT WITH JULIUS & ANALYTICS MANIA ===

#googletagmanager #googleanalytics4

[himanshusaini]

You are a lifesaver Julius, literally. ❤️ Lots of respect for you and your work. Just because of all these helpful videos on your channel, I have already made a deal of more than $500 with my client who wants a GA4 and GTM expert for his website. I learned almost everything from your videos💯. Great days ahead!!

[dk_kardboard]

This video was timed perfectly for me. Was having an issue with data layer variable not being set on container loaded. Shared this vid with a dev, and we fixed that. Also - frequent visitor to your site. You have the best Google Analytics/Tag Manager content around. Thanks very much!

[Sixxiron]

This is a really great video. I've had a general understanding of the data layer for years, but now I really understand it – THANK YOU!

[muhammadbinashraf]

Saved my day. I was stuck in datalayer issue for past 3 days but this video helped me in resolving that issue.

[richardisaac]

Excellent video thank you! I've been working with GTM for a few months so only now starting to understand the data layer - this really helped

[GabrielMateusLima]

This (and the other videos) is the best tutorial about Google Tag Manager in the whole YouTube.

Thank you so much.

[tem_vremenem_v_kanade]

THANK YOU, have been trying to fix the data layer push issue for literally a week now, after following a different tutorial. Your suggestion at 20:20 resolved the issue. Simply had to switch to 'DOM Ready' instead of 'PageView' and all the data is now being pushed finally...

[isaacvicliph]

What an awesome explanation! Thank you, Julius!

[martynaspuotkalis]

I have taken courses with Analytics Mania. Low price and tones of practical information. This guys teaches not just makes reviews.

[anugrahjundawijaya]

This video is soo comprehensive and answers many of my questions. Really appreciate it Julius!

[gizzzr]

This was great Julius, thank you very much!

[charanraja]

3 data layer rookie mistakes - it really helpful - Thanks

[lingua]

Rewatching this over and over again. This is important knowledge :)

[chingchihuang]

very specific and clear. thank u so much

[tosinwoghiren]

Thanks for creating this content Julius. It has been super helpful.

[mikedriver]

Thanks! Super grateful for this video series. Great job!

[laithhaitham]

best explaining on yt for this subject

[tomasgarciapineiro]

Thank you so much for this tutorial it was very helpful to me

[inspecialhome]

Hi there, awesome tutorial. But still got some questions and hope you could clarify. I was trying to use gtm to track checkout events. However, when initiating a checkout, there was no checkout event recorded in the drop down on the left hand side of the preview mode. Would you say that’s a problem of data no being pushed or the problems of data layer set up? If it’s the problem of data not being push, could it be the problems of my shopify theme code or purely the gtm trigger setup?

[amitavroydev]

Great video. Great content and to the point