provided URL is to configure Horizon Cloud PODs or to login to your Horizon Cloud, it can be Horizon on Azure or Horizon on VMC. For proceeding with that either you need to have a POC environment that need to be allotted by VMware. In another case if you or your company has it then the super admin can add you or with the approval of super admin you can request GSS to add your name to portal ( this portal only for the administration purpose )
Praveen C
L3admins.com