Please remove the step

You must have completed the steps 1. – 5. of the procedure Preparing for a RHEL conversion

from the https://docs.redhat.com/en/documentation/red_hat_satellite/6.15/html/managing_hosts/converting-a-host-to-rhel_managing-hosts#converting-a-host-to-rhel_managing-hosts (and similarly in the docs for other Satellite versions).
Neither of the referenced 1.-5. steps (which are now available under this link BTW) is applicable to the conversion when using the redhat.satellite.convert2rhel role as described in the Satellite doc - the role takes care of the 1.-5. steps.