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Google Tag Manager

The Faslet Size Me Up assistant for Google Tag Manager

Sizing made simple with Faslet

Say goodbye to the guesswork and confusion of online sizing with Faslet. Our easy-to-use sizing solutions are designed with the customer in mind, making it simple to find the perfect fit every time.


For now order tracking, and thus conversion and return metrics, are not available for GTM integrations. If these are vital to your business, please reach out about a custom integration.


In order to use the GTM integration in your store, there are a few requirements:

  1. You require a Faslet Account
  2. You require a valid product feed, validated and configured in the Faslet Partner Portal, where the URLs match your product page URLs.
  3. You require access to your Google Tag Manager Account, to create Tags that are placed on your store
  4. Google Tag Manager must be integrated into your store, on all pages
  5. Google Tag Manager ecommerce events must be tracked, specifically view_item and purchase events are required

If you meet all of the above requirements, it is possible to use Google Tag Manager to add Faslet's Size Me Up assistant to your web shop! To get started, get in touch with your Faslet Representitive and we will help you get set up!

Step-by-step guide

  1. In Google Tag Manager, select Tags and click on New. You should see a panel open up that looks like this: New tag

  2. Give your new tag a name, something like "Faslet Size Me Up"

  3. Click on the Tag Configuration box, and select Custom HTML New tag

  4. Enter your Faslet Shop ID and copy the resulting code snippet into the HTML box:

    The result should look something like this: img.png

  5. Click on the Triggering box, and select the add a new trigger option in the top right corner img.png

  6. Give your new trigger a name, something like "Faslet Trigger", and click on the trigger configuration box. Select Custom Event img.png

  7. Enable "Use Regex Matching", and in the Event name field, enter the following:


Your custom trigger should look like this: img.png

  1. After saving, your tag should look something like this: img.png Click save, and you're done!

  2. You can now publish this change to your store, and Faslet will be able to activate the assistant for your store! At this point, let us know that you've activated the code, and we'll activate the assistant for your store.


Make sure to run through the integration checklist and validate in the Faslet Partner Portal that everything is working and all the required events are being sent.


In case of any questions, please don’t hesitate to contact us on