This article will explain how to add Google ad words to your eCommerce website.
Login to your 123-reg Control Panel then scroll down to the eCommerce section and login.
Click on the Marketing button in the toolbar.
Click on the Google Adwords option under the Marketing tab.
Follow the steps outlined and sign up with Google Adwords
Paste the code given by Google in the box shown below.
Click on Save to add Google Adwords to your eCommerce page.