I used the Template Citrix XenApp and XenDesktop 7.x (advanced) to create the application monitor, then created this component Alert to trigger when a Desktop becomes unregistered. My issue is that when it triggers the email message, I can't seem to find a variable to show which of the 10 Desktops is unregistered, any ideas?

Here is the content of the message:
The ${N=SwisEntity;M=ComponentAlert.ComponentName} Module Desktop Groups is unregistered ${N=SwisEntity;M=Application.Node.Caption} polled ${N=SwisEntity;M=ComponentAlert.ComponentAvailability} at ${N=Alerting;M=AlertTriggerTime;F=DateTime}.
Here's how the email message appears:
Alert - Desktop Groups in Unregistered Status at Wednesday, October 30, 2019 9:47 AM
Message:
The Desktop Groups Module Desktop Groups is unregistered [Node Name appears here] polled Up at Wednesday, October 30, 2019 9:47 AM.