How can i activate the repo for HA

Hello people,

i have a test subscription for rhel7 and i want to configure a HA-Cluster but i cant activate the rhel ha repository for the servers.

I follow this article from red hat:
https://access.redhat.com/solutions/45930

Then i use this command:
subscription-manager repos --enable=rhel-ha-for-rhel-7-server-rpms

Then a error appears that says there is no repository id which is with "rhel-ha-for-rhel-7-server-rpms" correctly. I should user subscription-manager repos --list.

I hope you understand this bad englisch.
And thanks for your help.