ControllerHasAccess.php

<?php
/**
 * Custom Controller for LeadRouting Module to provide access
 */
class Customsgr_LeadRoutingController extends SugarController
{
    /**
     * Overwrite the preProcess() method to determin if access can be granted to this module
     *
     * @return null;
     */
    public function preProcess()
    {
        global $current_user;

        // is user an admin?
        $isAdmin = is_admin($current_user);
        // are they in a specific role?
        $role_check = $current_user->check_role_membership('Sales Operations');
        $role_check1 = $current_user->check_role_membership('Sales Manager');

        // they can access if any of the following are true otherwise no access!
        if($isAdmin || $role_check || $role_check1) {
            $this->hasAccess = true;
        } else {
            $this->hasAccess = false;
        }
    }
}