Hi Pradeep,

Thanks, I got this working. I had to query the parent group first. Regarding the group_sysid, I should have been more clear. The parent group will be dynamic based on the department being passed.

function getDepartmentGroups(deptID){

         var grpList = [];

         var deptGR = new GlideRecord('cmn_deprtment');

         if(deptGR.get(deptID)){

                   var deptName = DeptGR.name.replace(',', '');//Some of the departments contain commas, but the groups do not

                   var parentGroup = new GlideRecord('sys_user_group');

                   parentGroup.addQuery('name', deptName + '_SuggestedDLs');

                   parentGroup.query();

                   while(parentGroup.next()){

                             var grpGR - new GlideRecord('sys_user_group');

                             var grpGR.addQuery('u_parent, 'CONTAINS', parentGroup.sys_id);

                             grpGR.query();

                             while(grpGR.next()){

                                       grpList.push(grpGR.sys_id + '');       

                             }

                   }

         }

         return grpList;

}