All you need to know about Google Tag Manager


  • Google Tag Manager gives you the ability to manage all of your tags from one interface: save time in setting up your tracking to focus on your campaigns and budgets.
  • You insert a single tag, generated by Google, into the code of your online shop and then implement your different tags directly from the GTM interface.
  • You can freely control your tags without having to modify the code present on your site and without help from your technical teams.
  • Different user access levels allow you to secure your account.

The main steps of configuring your Lengow tag

Learn more about tracking with Lengow and GTM

  • Create a new custom HTML tag:
    Find the code to implement in our Help Center.
  • Select trigger options for your tag:
    In our case this will be ‘once per page’ and ‘on all pages’.
  • Configure the data layer object:
    This is an object that is configured in the source code of your website to contain the information you want to transmit to Google Tag Manager (transactions, behavior of users, etc.).
  • Define the variables:
    The objective is to establish a correspondence between the variables of GTM and those of your site.
  • Preview and debug:
    Go through the ‘preview’ section to check that your tag is correct before validating it.
  • Publish:
    It’s time to publish your tag to activate Lengow tracking on your e-commerce site.

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