Hi,

Thank you for getting back to me. So I have added the above script to the Business Rule:

Business Rule Details:

Table - Incident

Runs on Update

When to run = Component Ci(s) IS NOT EMPTY

Script:

(function executeRule(current, previous /*null when async*/) {

var componentCIs = current.u_componenet_ci.split(',');

var taskCi = new GlideRecord('task_ci');

for(var i=0; i< componentCIs.length; i++){
taskCi.initialize();
taskCi.task = current.sys_id;
taskCi.ci_item = componentCis[i];
taskCi.insert();
}

})(current, previous);

When I run the action on the Incident form and click save no record is added to Affected Ci tab: