Katello: question regarding builk actions

Using Foreman 1.7 with Katello 2.1.
Foreman/Katello server and content host are both CentOS 7

I noticed when using 'bulk actions' on content hosts to
install/remove/update one or multiple packages that the content hosts
/var/yum.log is not updated to reflect the new state of the host. No single
line was added to the log file indicating any change to any package.

Either something is not correctly configured or 'bulk actions' does not use
yum to install/remove or update packages?
Or is /var/yum.log no longer the place where all package activities are
logged to.

Can anyone provide more information?