Hi @edcraddock
@techliminal is correct. You should use the acf/save_post and wp_update_post() to do that. Also, don’t forget to remove the hook before calling the wp_update_post() function to avoid the infinite loop issue. It should be something like this:
add_action('acf/save_post', 'my_save_post', 20);
function my_save_post($post_id){
// Get the data from a field
$new_title = get_field('title_field_name', $post_id);
// Set the post data
$new_post = array(
'ID' => $post_id,
'post_title' => $new_title,
);
// Remove the hook to avoid infinite loop. Please make sure that it has
// the same priority (20)
remove_action('acf/save_post', 'my_save_post', 20);
// Update the post
wp_update_post( $new_post );
// Add the hook back
add_action('acf/save_post', 'my_save_post', 20);
}
I hope this helps 🙂
