Here is copy and paste from baseline_engine doc
baseline_engine Configuration - CA Unified Infrastructure Management Probes - CA Technologies Documentation
If you enter "${" in text field, then you get list of available variables.
customAlarmMessage: A custom alarm message that is generated when a threshold is breached
Variables include:
${baseline} - The baseline that is calculated for a QoS metric, when you select the Compute Baseline and Dynamic Alarm options
Baselines are not calculated for static messages, so this value is always zero for static alarms.
${level} - The numerical critical level of the alarm
Valid values are: 1 (critical), 2 (major), 3 (minor), 4 (warning), or 5 (information)
${operator} - The operator (>, ≥, <, ≤, =, or !=) for the critical level of the alarm
${qos_name} - The name of the QoS metric
${source} - The source of the QoS metric that generated an alarm
${target} - The target of the QoS metric that generated an alarm
${threshold} - The threshold upon which an alarm is generated
${value} - The value that is contained in the generated QoS metric
EXAMPLE: -customAlarmMessage “${qos_name} is at ${value}”