Good Catch!! @Sonam_Tiwari
Please try to update the script as below:
Also your BR should be before update
var gr = new GlideRecord('incident');
gr.addQuery('active',true);
gr.addQuery('parent_incident',current.sys_id);
gr.query();
if(gr.next())
{
current.setAbortAction(true);
gs.addInfoMessage("Please close all the child incidents first and try again!!");
}
If my answer solved your issue, please mark my answer as ✅ Correct & 👍Helpful based on the Impact.
