How to automatically generate a post title in WPUF

Insert this code into functions.php and change the post types accordingly…

add_action( 'save_post', 'wpse_214927_alter_title', 10, 2 );

add_action( 'wpuf_add_post_after_insert', 'wpse_214927_alter_title', 10, 2 );

add_action( 'wpuf_edit_post_after_update', 'wpse_214927_alter_title', 10, 2 );

function wpse_214927_alter_title ( $post_id, $post_object )

{

    // Target only specific post type

    if (    'my_specific_post_type'       !== $post_object->post_type

         && 'my_other_specific_post_type' !== $post_object->post_type

    )

        return;

    $post_date      = $post_object->post_date;

    $format_date    = DateTime::createFromFormat( 'Y-m-d H:i:s', $post_date );

    $date_formatted = $format_date->format( 'Y-m-d' ); // Set correct to display here

    $post_author    = $post_object->post_author;

    $author_name    = get_the_author_meta( 'display_name', $post_author ); // Adjust as needed

    $my_post = [

        'ID' => $post_id,

        'post_title' =>  '#' .  $post_id . ' ' . $author_name  . ' ' . $date_formatted // Change as needed

    ];

	// unhook this function so it doesn't loop infinitely

	remove_action('save_post', 'wpse_214927_alter_title');

	wp_update_post( $my_post );

	// re-hook this function

	add_action('save_post', 'wpse_214927_alter_title');

}

https://wordpress.org/plugins/wp-user-frontend/