How to Create Incident Aging Report base on Priority ServiceNow

Step 1: Create New field on incident table – u_aging_category

Step 2: Write scheduled job run daily to update incident age.

updateIncidentAging();
 function updateIncidentAging() {
 var elapsedTime = 0;
 var age = '';
 var currentTimeNow = gs.nowDateTime();
 var gr = new GlideRecord('incident');
 gr.addEncodedQuery('u_aging_category!=>28^ORu_aging_category=');
 gr.query();
 while(gr.next()) {
  elapsedTime = (gs.dateDiff(gr.opened_at, currentTimeNow, true))/60/60/24;
     // Check to see when the item was created
  if (elapsedTime <= 2) aging = '0-2 Days';
   if (elapsedTime > 2)  aging = '3-7 Days';
   if (elapsedTime > 7)  aging = '8-14 Days';
   if (elapsedTime > 14) aging = '15-21 Days';
   if (elapsedTime > 21) aging = '22-28 Days';
   if (elapsedTime > 28) aging = '> 28 Days';
      gr.setWorkflow(false); // Skip any Business Rules
  gr.autoSysFields(false); // Do not update system fields
  gr.u_aging_category = age;
  gr.update();
 }
}

Output

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