After placing your order, navigate to your my account-> downloads page. Or click the button below.

Find the order number of the airport you want, and find the serial code provided. (In this case KPVU)

Download the Contrail App and open it. Make an account or sign-in if you have one already. Go to the store page for the product.  (you can filter by developer, continent, or search)

Then click the “activate” button. Paste the serial code provided. Click “activate” again. And it should allow you to download the scenery.