Final URL is a type of URL address of a page in your website that people reach when they click an ad
Final Url is not displayed in your pay per click ad whereas only display URL display in ad format
If you want to add final URL for mobile users you can even add..click on use final URL for mobile under Ad URL option
The domain of the final URL needs to match the domain of your display URL.
You can use the Tracking template by putting the tracking information. This information is used to create the landing page URL
A final URL suffix option is available under ” Ad URL” this allows you to enter the parameters and add as an extension to final URL page to track the information