Fortnox - Shipping as OrderItem EU

functions.php

<?php
/**
* @snippet WooCommerce - Fortnox Add Shipping charges as OrderItem instead of Shipping fee in Fortnox
* @author Redlight Media AB / Christopher Hedqvist
* @compatible WooCommerce 4.1.0
*/
function redlight_fortnox_shipping_as_order_item($orderData, $order_id) {
    $order = new WC_Order($order_id);
    // Remove fee from orderData
    if(isset($orderData['Order']['Freight'])){
        unset($orderData['Order']['Freight']) ;
    }
    if($order->get_shipping_total() > 0){
        switch($order->get_shipping_country()){
            case 'SE':
                $account = 3520;
                $sku = 8111;
                $description = 'Delivery Cost SE';
                break;
            case 'FI':
            case 'DK':
            case 'DE':
            case 'NL':
            case 'GB':
            case 'IE':
            case 'LU':
            case 'BE':
            case 'FR':
            case 'ES':
            case 'PT':
            case 'AT':
            case 'IT':
            case 'PL':
            case 'EE':
            case 'LV':
            case 'LT':
            case 'HU':
            case 'SK':
            case 'CZ':
            case 'BG':
            case 'CY':
            case 'GR':
            case 'HR':
            case 'MT':
            case 'RO':
            case 'SI':
                $account = 3018;
                $sku = 8107;
                $description = 'Delivery Cost EU';
                break;
            default:
                $account = 3015;
                $sku = 8108;
                $description = 'Delivery Cost outside EU';
                break;
        }
        $shipping_vat = (floatval($order->get_shipping_tax()) / floatval($order->get_shipping_total()))*100;
        //$shippingname = $order->get_shipping_method();
        $orderItem = array(
            'ArticleNumber' => $sku,
            'AccountNumber' => $account,
            'DeliveredQuantity' => 1,
            'Description' => $description,
            'OrderedQuantity' => 1,
            'Price' => floatval($order->get_shipping_total()),
            'VAT' => $shipping_vat
        );
        array_push($orderData['Order']['OrderRows'],$orderItem);
    }
    
    return $orderData;
}
add_filter('obj_fortnox_order_data', 'redlight_fortnox_shipping_as_order_item', 10, 2 );