Profile: kelvinL-2

function fn_cred_form_validate($error_fields, $form_data)
{
    list($fields,$errors)=$error_fields;
  
    if ($form_data['id']==221) {
        if (empty($fields['wpcf-application-tour-number']['value'])) {
            //set error message for my_field
            $errors['application-tour-number']='Please select tour first';
        }
    }
    return array($fields,$errors);
}
add_filter('cred_form_validate','fn_cred_form_validate',10,2);