healFrequency parameter to zero means that Subscription Manager simply uses the default time setting.
# vim /etc/rhsm/rhsm.conf
[rhsmcertd] section, set the healFrequency parameter to the time, in minutes, to check for changed subscriptions.
[rhsmcertd] certFrequency = 240 healFrequency = 1440
rhsmcertd daemon to reload the configuration.
# service rhsmcertd start