Need to look up all employees under a Manager's hierarchy

[Melissa Bennett]

Use Case: Our HRReps support everyone within a leader's heirarchy and we need the HRRep designated on each user record. I am creating a FLOW to populate the field on new users and upon leadership changes.

(EX: HR Bob supports everyone in John Smith's heirarchy, so anyone who's Manager is John Smith or Manager's Manager is John Smith or Manager's Manager's Manager is John Smith, etc...)

I found a Script Include for getManagerEmployees on another forum, but I believe they were wanting to show all employees reporting to the logged in user.  Can someone help out?

Script Include that is Client Callable in Global:

var getManagerEmployees = Class.create();

GetManagerEmployees.prototype = Object.extendsObject(AbstractAjaxProcessor, {

getEmployees: function(user) {

        var userList = [];

        var maxLevel = 10; //Adjust for levels you want to recurse

        var level = 1;

        var grUser1 = new GlideRecord('sys_user');

        user = user === undefined ? gs.getUserID() : gs.getUser().getUserByID(user).getID();

        if (grUser1.get(user)) {

            this._recurseUsers(grUser1.sys_id.toString(), level, maxLevel, userList);

        }

        return userList.join(',');

    },

    _recurseUsers: function(manager, level, maxLevel, userList) {

        var grUser2 = new GlideRecord('sys_user');

        grUser2.addQuery('manager', manager);

        grUser2.addActiveQuery();

        grUser2.query();

        while (grUser2.next()) {

            userList.push(grUser2.sys_id.toString());

            if (level + 1 <= maxLevel) {

                this._recurseUsers(grUser2.sys_id.toString(), level + 1, maxLevel, userList);

            }

        }

return userList;

    },

    type: 'getManagerEmployees'

});