• John Huebner

• April 21, 2017 at 3:27 am

https://www.advancedcustomfields.com/resources/acfload_value/

add_filter('acf/load_value/name=your_field_name', 'default_value_for_your_field_name', 10, 3);
function default_value_for_your_field_name($value, $post_id, $field) {
  if ($value === NULL) {
    // value is NULL because it was never saved
    $value = 'my default value';
  }
  return $value;
}