In this guide, we will show to to add a Google Universal Analytics (include eCommerce Tracking).
Before doing this step, make sure you have added user-defined variables.
In your Google Tag Manager Workspace go to
New to add a new Tag.
Tag Configurationto choose tag type:
Watch this screencast step by step
Now you can see eCommerce Tracking data in your Google Analytics:
Conversions > Ecommerce > Overview