This service will validate the atrributes provided about you from your identity provider ensuring they are provided in a format that is suitable for consumption by HKAF connected services.
If you're the administrator of an Identity Provider and this is the first time you've accessed this validator please ensure you've configured automated attribute release or correctly setup manual attribute release policies for your users before continuing to ensure you don't have connectivity problems with services such as this.
If you need further assistance you can email HKAF support.