Thanks for that JT. As a follow up - what I want to do is set lead sources based on these query strings, is there a way to pull the first instance of a website visit with a query string? For example, Lead A has two website visits, one at 10am and one at 11am. The 10am visit has a query string of Display Ads and the 11am visit has a query string of Remarketing Ads. How would you go about making sure that this lead's lead source is set as Display Ads?