Hi @Madhan007 ,

you script looks good it should work

cc and bcc will be populated in the copied and Blind Copied field of the email

you can also use this script but your script should work fine

(function runMailScript( /* GlideRecord */ current, /* TemplatePrinter */ template,
    /* Optional EmailOutbound */
    email, /* Optional GlideRecord */ email_action,
    /* Optional GlideRecord */
    event) {

    var approvalgr = new GlideRecord('sysapproval_approver');

    approvalgr.addQuery('sysapproval', current.getValue('sysapproval'));
    approvalgr.query();
    while (approvalgr.next()) {

        if (approvalgr.approver && approvalgr.approver.email) {

            var emailString = approvalgr.approver.email.toString();
            var displayName = approvalgr.approver.name;
            email.addAddress("cc", emailString, displayName);

        }
    }


})(current, template, email, email_action, event);

in the background script context the email parameter is undefined so it will throw the error

Please mark my answer as helpful/correct if it resolves your query.

Regards,
Chaitanya