How can I populate the Primary Point of Contacts Area of Responsibility (AOR) details in the Help Desk SR Details page?

If the HR Help Desk team needs to see AOR details in the SR Details page, you can populate this information after SR creation by doing the following:

Location, BU, and Department aren't standard fields used in a Help Desk SR. These fields are captured from HCM database tables. You'd use script (REST API) doc link to capture these attributes.

See the REST API documentation to capture Department or Location.

As an alternate solution, you can use the following script as a guide. Change to meet your business requirement:
def hcmPersonListVL = hcmPersonList
  while(hcmPersonListVL.hasNext())
  {
  def hcmPersonListRow = hcmPersonListVL.next();
  def primaryFlag = hcmPersonListRow?.PrimaryFlag;
  if (primaryFlag == "Y"){
  def loc=hcmPersonList?.last()?.LocationName;
  def bu=hcmPersonList?.last()?.BusinessUnitName;
  def dp=hcmPersonList?.last()?.DepartmentName;
if (loc != null && bu != null && dp != null) {
  setAttribute('LocationSite_c',loc);
  setAttribute('BusinessUnit_c',bu);
  setAttribute('Department_c',dp);
  break;
}
  }
  }