InfluxDB V2 OSS Alerts : capturing the metric value in notification message

Hi RK, Thank you for your patience I now have an answer for you. When creating a check the _value field is automatically pivoted . In short this means instead of using the _value field you should use the _field name. For example:
Check: ${ r._check_name } is: ${ r._level } ${string(v: r.used_percent)}
Where by used_percent was the _field name.