. 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.. . 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.. You can use the reference name to identify the page in App Analytics.. . As desired, add additional screenshots, app previews, or promotional text.. Click the Create button. The unique URL of your custom product page is automatically generated and displayed here.