#GTMTips: Check For Undefined Value

February 27, 2018 in GTM tips | Comments

This is one of those #GTMTips posts that I was certain I’d already written. So it came as a mild surprise when I realized I’d never tackled this aspect of Google Tag Manager. It’s a short and sweet tip again. Today we’ll learn how to check if a variable is undefined using Google Tag Manager. Tip 73: Check for undefined variable values If a variable is undefined, it means that a variable with the given name does not currently have any valid value in memory.

#GTMTips: Edit Google Analytics Tag Settings

February 19, 2018 in GTM tips | Comments

When the Google Analytics Settings variable was introduced in May 2017, it resulted in a significant change in the Google Analytics tag user interface in Google Tag Manager. The default UI for editing a tag was stripped down of all GA-specific settings, and the new Google Analytics Settings drop-down was the replacement. Unfortunately, the bulk of Google Tag Manager articles online (including those on this blog) still refer to the old interface in screenshots and instructions.

#GTMTips: Fix Missing Page View Event And Broken Triggers

February 9, 2018 in GTM tips | Comments

Google Tag Manager should be relatively easy to implement. Just paste the container snippet to the <head> of the page and you’re good to go! However, at some point you’ll want to configure the dataLayer structure, too (read more about dataLayer here). There are two ways to do it: the right way and the wrong way. In this article, we’ll see what happens if you do it the wrong way, how to identify the issue, and how to fix it.

#GTMTips: Automatically Duplicate Google Analytics Hits To Snowplow

February 1, 2018 in GTM tips | Comments

I’m back with another customTask tip, but this time I’m exploring some new territory. Snowplow just introduced their latest version update, which included (among other things) an adapter for processing Google Analytics payloads. Never heard of Snowplow? It’s a collection of open-source libraries designed to let you build your own analytics pipeline, all the way from data collection, through ETL (extract, transform, load), using custom enrichments and JSON schemas, and finally into your own data warehouse, where you can then analyze the data using whatever tools you find preferable.

#GTMTips: Simple Custom Event Listeners With Google Tag Manager

January 23, 2018 in GTM tips | Comments

First of all, check out this article for an overview of how custom event listeners work in Google Tag Manager. The reason I’m writing this #GTMTips article is that I want to upgrade the solution slightly, and I want to bring it back into the spotlight. Why? Because it’s still one of the most effective ways to customize your Google Tag Manager implementation. A custom event listener is a handler you write with JavaScript.

#GTMTips: Opt-out Of Google Analytics Tracking

January 9, 2018 in GTM tips | Comments

A while ago I posted a #GTMTips post where I detailed the steps you can take to opt-out of all Google Analytics tracking and the DoubleClick redirects that often follow. It was a fun exercise, but because it relies on preventing requests on a tag-by-tag basis (using the ubiquituous customTask), it can be a chore to handle in large containers. In this article, we’ll continue with the theme of opting out from Google Analytics tracking by leveraging a solution provided by the tool itself.

#GTMTips: Auto Link Domains With Regex

December 21, 2017 in GTM tips | Comments

Update 5 March 2019 due to GTM not supporting negative lookbehinds any more. Google Tag Manager makes it fairly easy to do cross-domain tracking. Basically, you list the hostnames you want to automatically decorate with linker parameters in the Auto-Link Domains field of your Page View tag, and that takes care of decorating the URLs with the necessary parameter. It’s dead easy, even if there are a bunch of traps you need to watch out for (see my post on troubleshooting cross-domain tracking issues).

#GTMTips: Check For Undefined Value

#GTMTips: Edit Google Analytics Tag Settings

#GTMTips: Fix Missing Page View Event And Broken Triggers

#GTMTips: Automatically Duplicate Google Analytics Hits To Snowplow

#GTMTips: Simple Custom Event Listeners With Google Tag Manager

#GTMTips: Opt-out Of Google Analytics Tracking

#GTMTips: Auto Link Domains With Regex

Simo Ahava