Close Task Business Rule

[tomaslindev]

Hello everyone,
I need that when closing a Task, the worknotes become mandatory and are sent to the corresponding RITM worknotes.
For this I have created these 2 Business rules that do not apply, any ideas.
Thanks in advance

BR 1:

When: before

Filter Conditions: state is closed complete

Insert

(function executeRule(current, previous /*null when async*/) {
    if (gs.nil(current.work_notes)) {
        gs.addErrorMessage('Work Notes are mandatory when closing a task.');
        current.setAbortAction(true);
    }
})(current, previous);

BR 2: 

When: after

Filter Conditions: State is Closed Complete

Insert

(function executeRule(current, previous /*null when async*/) {
    var ritm = new GlideRecord('sc_req_item');
    if (ritm.get(current.request_item)) {
        ritm.work_notes = ritm.work_notes + '\nTask ' + current.number + ' closed: ' + current.work_notes;
        ritm.update();
    }
})(current, previous);