For this filter:
add_filter( 'gform_notification_55', 'acf_email', 10, 3);
function acf_email ($notification, $form, $entry){
$post_id = rgar($entry, '14');
$notification['to'] = get_field('staff_email', $post_id);
return $notification;
}
Notification was misspelled in the returning line (‘notificaiton’). There is also a misspelling of it in two places on the second filter tried, but I think that one has other problems, as well.
Beyond making sure there is no typo in notification throughout any given filter used, I’d verify:
1) 55 is the correct form ID of the form you’re trying to modify this on
2) 14 is the correct ID of the field that the post ID you’re passing to this form is located inside of.
