Private note

Save a note for any field groups for internal use. The note will be only visible to administrators.

Set Settings in PHP

It is possible to set this setting in PHP using the acf/load_field_group hook. Note that this hook is used everywhere, including in ACF admin and tools screen. Usage example:

add_filter('acf/load_field_group', 'my_acf_field_group');
function my_acf_field_group($field_group){
    // Target a specific key
    if($field_group['key'] !== 'group_5f20935b9a777')
        return $field_group;
    // Settings
    $field_group['acfe_note'] = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.';
    // Return
    return $field_group;

Retrieve Settings

The note is saved in the Field Group array, under acfe_note key. It can be retrieved using acf_get_field_group(). Usage example:

$field_group = acf_get_field_group('group_5f20935b9a777');

 * [instruction_placement] => label
 * [hide_on_screen] =>
 * ...
 * [acfe_note] => Lorem ipsum dolor sit amet, consectetur adipiscing elit.
 * ...