Metric not firing off for 1st updated by

[Nickels]

I have a feeling that I may be missing something simple. I am trying to create a metric that will record the first person to update an incident. I will also be creating this on other tables but am starting with incidents first. I have created a metric against the Incident table and have it watching the Updates (sys_mod_update) field, the type is set to Script Calculation. Here is the script that I wrote for the this:

var mod = current.sys_mod_count;
if (mod == '1') {
createMetric();
}
function createMetric() {
         var mi = new MetricInstance(definition, current);
         if (mi.metricExists())
         return;
         var gr = mi.getNewRecord();
         gr.value = current.sys_updated_by;
         gr.calculation_complete = true;
         gr.insert();
}

I have tried multiple variations of this script and not having any good results. I started looking at the metric_events business rule today, so I am not sure if I need a new business rule to get this to start or not. Any advice you can offer is appreciated.

Thanks

-Chris

[Nickels]

Appreciate the help either way.

Thanks

-Chris