Enter your property's Admin Area by selecting the option Admin Property Dashboard from your User Menu.
Once in the Admin Property Dashboard, select to manage users from either the Reference Links option on the navigation sidebar or clicking on Manage on the Reference Links tile on the main area of the page.
Once in the Reference Links area, select the New Link button at the top right of the page to continue.
Next, you need to add a Title for your Reference Link (title must be at least 2 characters)
Enter the URL you wish to add as your Reference Link.
Finally, click on the Save Link button.
When your Reference Link has been successfully added you will see the following message.
To return to your events, click on the Exit Admin Area button at the top left of the page to leave the area.