FacetWP - User Post Type - re-index whenever a user is saved

functions.php

<?php

/**
 * This goes within a user save hook
 *
 * First, we run a UPT sync to copy the data into the wp_post* tables
 * Then we re-index in FacetWP to capture the changes
 */

UPT()->sync->run_sync( $user_id );

$post_id = (int) get_user_meta( $user_id, UPT()->meta_key, true );

if ( 0 < $post_id ) {
    FWP()->indexer->index( $post_id );
}