Final answer:
To start using dynamic remarketing on the campaigns, Lilly will need to add two additional parameters to her standard Universal Event Tracking (UET) tag: 'ecomm_prodid' and 'ecomm_pagetype'.
Step-by-step explanation:
To start using dynamic remarketing on the campaigns, Lilly will need to add two additional parameters to her standard Universal Event Tracking (UET) tag. The first parameter is 'ecomm_prodid', which represents the product ID. This parameter is used to dynamically insert the ID of the product that the user has viewed. The second parameter is 'ecomm_pagetype', which represents the page type. This parameter is used to identify the type of page the user is on, such as a product page or a category page.