Filter WooCommerce Backorder Status Based on Stock Quantity

Hi!

I am trying to implement the Snippet your provided on your website, however it doesn’t change Stock status by checking Qty. Is there something I need to add in your Snippet?

/**
 * Filter WooCommerce Backorder Status Based on Stock Qty
 *
 * Set the backorder staus when the stock qty is less than 1.
 *
 * @package WPDataSync
 */
 
// WooCommerce _stock value filter
add_filter( 'wp_data_sync__stock_value', 'wp_data_sync_backorder_status_by_stock_qty', 10, 3 );
 
/**
 * WP Data Sync Set Backorder Status by Stock Qty.
 *
 * @param string                   $price
 * @param int                      $product_id
 * @param WP_DataSync\App\DataSync $data_sync
 *
 * @return mixed
 */
 
function wp_data_sync_backorder_status_by_stock_qty( $qty, $product_id, $data_sync ) {
 
    if ( empty( $qty ) ) {
        return $qty;
    }
 
    if ( ! function_exists( 'wc_get_product' ) ) {
        return $qty;
    }
 
    $product = wc_get_product( $product_id );
 
    // Default status
    $status = 'instock';
 
    if ( intval( $qty ) < 1 ) {
        $status = 'onbackorder';
    }
 
    $product->set_stock_status( $status );
    $product->save();
 
    return $qty;
}