Hi,
Please login in the portal . Go to user admin and create "administrator".Provide password.
make it Technical user add the below roles.
Please check that you have com.sap.caf.eu.gp.roles.superuser in the assigned roles tab of the user and below three in the assigned groups.
Everyone
Administrators
Authenticated
can you please check the user used to connect the ume.(Sapjsf) has peoper rights as you should see all the user in portal that are in the backend.
Thanks
Rishi Abrol