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This article explains how the data layer works for websites by clarifying the various related terms and providing an overview of the flow of data from your website to your vendor tags.
First, let's define the various terms related to a website data layer and your installation of utag.js:
utag.data
to be used for each individual vendor tag. The "b" variable can be referenced in JavaScript Extensions.This graphic shows how individual variables come together to create your Data Layer and how that data flows out to your vendor tags.
When a web page with Tealium iQ is rendered in a visitor's browser, this is how the data moves.
Read more about the order of operations of the Tealium Javascript library.
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