Hi @edcraddock,
I’m trying to do the same thing. Basically, what you need to do is add a hook on saving the post, and assemble the title from the components.
add_action('acf/save_post', 'my_save_post');
function my_save_post($post_id){
// make sure this post type is the kind we want
// get the first and last name fields
// (or whatever field(s) you want to convert into the title
// update the post title (if there isn't one already)
// https://developer.wordpress.org/reference/functions/wp_update_post/
}
I’m using this help page to figure this out: https://www.advancedcustomfields.com/resources/using-acf_form-to-create-a-new-post/ (look at the contact form example)
the acf/save-post hook happens AFTER the post is inserted, so you can use wp_update_post to update the title.
(I’ll post my code here once I actually get it working)
