Select your app from My Apps. A page opens with the App Store tab selected.. Click Custom Product Pages on the left sidebar.. Select Create Custom Product Page.. You can use the reference name to identify the page in App Analytics.. Choose whether to create a new product page or edit an existing page. Starting from an existing page, you can select a version that is Ready for Sale or Prepare for Submission.. Click the Create button. The unique URL of your custom product page is automatically generated and displayed here.. As desired, add additional screenshots, app previews, or promotional text.