oooh i get it now, thanks both of you for clarification.
“This rule i send you will tell to monitor that specific service so you can have assurance that it is working correctly and set notifiations… for it.”
That’s exactly what I tried to achieve, to get notification if this specific service fails and your suggestion did the trick.
But checkmk won’t notify you if some of service in summary of all the services fails as I understand?