Nagios Support Forum

We have hundreds of hosts and thousands of services, but only some of them should have SMS notifications. How can I do that?
Separate contact for SMS notifications is a bad option, since in this case, the user will not be able to manage notifications.

Is it possible to add a variable to a host/service and check it in xi_host_notification_handler (/usr/local/nagiosxi/scripts/handle_nagioscore_notification.php) before sending SMS notifications?

For example Could you point to the part of the code responsible for sending SMS, or suggest another solution?

Maybe someone is trying to solve a similar problem.
I made it by adding a variable to "Free Variable" in required service, changing xi_service_notification_handler in "Commands" from to (change _SERVICESENDSMS$ to HOSTSENDSMS$ in host case)
Changing email-to-sms subject to In than case if I will add variable "_sendsms on" in "free variavle" of a service, the subject of e-mail will be "sms on", if not -> "sms $"
And removing all messages with subject "sms $" by Postfix ba adding to /etc/postfix/header_checks (dont foget uncomment header_checks from main.cf)

So postfix deletes unnecessary messages.

Thanks for following up with your solution!