1. Future-proof your website: Upgrading to Universal Analytics may be a pain if you have to do a lot of code swapping, page modifications, etc. Instead, use Google Tag Manager to make the gradual switch to Universal Analytics, testing as you go. Implementing GTM will take about the same amount of effort as upgrading to Universal, but it will make future upgrades and enhancements much simpler since modifications can be made through GTM and not through each page of your website.
google tag manager agility2. Speed: Changes and new Tags can be made rapidly and do not require code changes to the website. This is great for marketers because it can really speed up launch time by testing each change themselves and deploying when ready, without involving a developer.
3. Flexibility: Google Tag Manager is great for marketers as they don’t need to involve a developer with every single little tweak to simple Tags. This frees up time for developers to focus on larger projects. Conversely, developers and IT staff will love GTM for the robust features listed below and the extreme customization. Who will benefit from GTM the most will depend on your website and the complexity of the tasks you hope to achieve.
4. Debug Options: Making sure that your Tags works BEFORE you publish them to the live site is really, really important. GTM has a built-in debug feature which allows you to personally test and debug each update in your browser on your actual site before publishing the change.
5. Version Control: Every time you publish a change, it creates a new version, which is archived. If at any time you need to rollback to an existing version, you can do so easily. This is also a great way to keep tags organized and trouble shoot tagging problems.
6. User Permissions: GTM allows you to set permissions for individual users that include view, edit, and publish. You can control internally who has the ability to make updates to the website and enable a vendor (like LunaMetrics) to help assist with creating Tags, Macros, and Rules to assist with Analytics and Advertising.
7. Built-In Tags: GTM has included tags for classic and Universal Analytics, AdWords conversions, remarketing, as well as other popular ad networks. This is extremely helpful to marketers just starting with GTM and who do not have much coding experience. These allow you to customize the tags with just a few pieces of information and without the complication of implementing code.
8. Event Listeners: GTM takes the hassle out of manually tagging each link that you want to track with individual onclick attributes to send events to GA. Instead, you can target links or buttons by attributes that are already on the link or by using a standardized naming structure like data attributes.