On the bottom of your app dashboard, click the "Track a custom event" button.

This will pull up the "Custom event creation" page. Fill out the information on the page, including the date, time, event artist, and location of your event. Once this is finished, click the "Next" button at the bottom of the screen to go to the next page.

Add the Stubhub URL to your event in the bar that says "Stubhub URL". Click "Get Event Info" to validate the URL. Once the URL is validated, you will see the Event ID and Event Category pop up on your screen. You can optionally add the Tickpick URL or Seatgeek URL in the bars below that.

Once you are finished filling out the required information, click the "Next" button. Your custom event should show up in your dashboard.