Can a dynamic query identify a particular service?

Try using AssetTag,

We use them to define what service need monitoring.

eg, IIS, WEB = Monitoring IIS Services (w3svc)

SSLW = Monitor IIS Web SSL Certs (custom Powershell script)

I think you get the meaning.

The create a Group with a dynamic query, Create a template with the services you want to monitor.
using my examples.

Application template to monitor IIS Web Service (W3SVC), then assign the dynamic group to the template.
when a system has asset tags containing the chosen wording. it will auto populate the nodes to monitor and alert on.

Sample Dynamic Query.

IsServer = True
AssetTag Contains "IIS"
AssetTag Contains "WEB"

you can apply more filtering as required.

Hi, thank you, yes, I created a mandatory tag when new servers are created to identify if the backup software is installed, then created a dynamic group based on this tag.  The issue I was having above was due to some servers being classed as "servers" and some as "hosts" (Hyper-V), when creating the group, there's a drop down selection "Advanced", under there is a tick box that only selects servers by default, make that change and they all added ok.  Then just create an alert as required.

Hi, thank you, yes, I created a mandatory tag when new servers are created to identify if the backup software is installed, then created a dynamic group based on this tag.  The issue I was having above was due to some servers being classed as "servers" and some as "hosts" (Hyper-V), when creating the group, there's a drop down selection "Advanced", under there is a tick box that only selects servers by default, make that change and they all added ok.  Then just create an alert as required.