In Revision 1-11 under section 4.1.1.1. Setting up a Manifest there is a statement step #7.

> Click Attach a subscription, add the subscriptions required for Red Hat Satellite, and then click Attach Selected

This statement should say

> Click Attach a subscription, add the subscriptions required for Red Hat Satellite to manage, and then click Attach Selected

NOTE: Added 'to manage'

Otherwise it is not clear _what_ subscriptions you should add to the certificate. And can be construed to imply you should add the satellite subscription.