Data layer and data types

The data layer represents all your available data. It consists of information about your site (e.g. page name, product ID) and your visitors (e.g. user ID, customer status) in the form of JavaScript variables.

These variables have two uses:

– To populate the tags present in your container;

– To create activation rules for your tags.

Additional information:

The data layer can consist of two types of data:

– Data implemented by your IT department or your technical provider for all your web pages, based on the CSS, Backoffice and CRM. These data are called “external variables” and are displayed in your site’s source code as a JavaScript object containing all the variables used by your tags.

This is what the external variables look like in the source code:

<script type="text/javascript">
var tc_vars = new Array();
tc_vars["env_work"] = 'Prod';
tc_vars["env_channel"] = 'Web';
tc_vars["env_language"] = 'fr';
tc_vars["env_country"] = 'FR';
tc_vars['page_type'] = 'Homepage';
tc_vars["page_name"] = 'Tag Commander Market';
tc_vars["page_category_1"] = '';
tc_vars["page_category_2"] = '';
tc_vars["page_category_3"] = '';
</script>

/* Data layer is setup - call the Web Container Script underneath */

<script type="text/javascript" src="//cdn.tagcommander.com/674/my_web_container.js"></script>

– Data created in the interface by Commanders Act staff or Commanders Act users based on information available on the site’s pages (URL, cookies, HTML tags, external variables in the data layer, etc). They are called “internal variables” and are displayed in the Commanders Act web container’s code.