1. In PingOne, go to Integrations > External IDPs.
  2. Locate the appropriate IdP and then click the Details icon to expand the IdP.
  3. Click the Connection tab.
  4. Copy the callback URL and paste it in a secure location.
  5. Go to the Amazon Developer Console at https://login.amazon.com.
  6. Select the appropriate profile.
  7. Go to the Web Settings section.
  8. For Allowed Return URLs, paste the value that you copied from the PingOne console.
  9. Click Save.