Trigger Emails/Handlers on Webform submissions update

Is there a way to trigger the Emails/Handlers, When webform submission has been updated. I'm using webform_mailchimp module for the handler. When I'm submitting a new record, handler is working fine and I can receive the data into my Mailchimp account. I have a function to update the submission via code(custom module). This handler doesn't work, when I update an submission. Following is my code to update the webform submission:

$webform = Webform::load('my_form');
$is_open = WebformSubmissionForm::isOpen($webform);
$sid = 2;

if ($is_open === TRUE) {

    $webform_submission = WebformSubmission::load($sid);

    $webform_submission->setElementData('preferred_date', $form_state->getValue('preferredDate'));
    $webform_submission->setElementData('preferred_time', $form_state->getValue('preferredTime'));

    $errors = WebformSubmissionForm::validateWebformSubmission($webform_submission);

    if (!empty($errors)) {
        drupal_set_message(t('Failed! Please contact the administrator.'), 'error');
    }
    else {
        $webform_submission = WebformSubmissionForm::submitWebformSubmission($webform_submission);
        drupal_set_message(t("Success! ".$webform_submission->id()), 'status');
    }
}

Is there a way to trigger the handler through code(programmatically)?

Thanks,