Event Tracking is a must have on the to-do list of any data driven Ecommerce business. Just by adding an extra code snippet, it enables you collect data on additional website actions and activities that are not ordinarily tracked with standard Google Analytics code. From clicks on buttons (add to cart, view product, proceed to checkout, etc.) or links (internal and external), to what fields of the checkout form are filled and what errors users experience when they navigate through your store.