To make use of the GPS Verifier function, you will first need to enable it.
Get started on the main Admin Page.
Select a client, head to the Clients tab and use the Client & Form Settings link, or simply use the Quick Jump bar.
Once on the Client Administration page, simply click on the Survey name.
Scroll down to the Advanced Survey Options section on the Survey Settings page, and enable the use of GPS Verifier.
Don't forget to scroll to the bottom of the page and use the Save Changes button!
To have this feature activated on your system, please request it through a Support Tracker!