Fortnox - Account Depending on VAT

functions.php

<?php
/**
* @snippet WooCommerce - Fortnox plugin by Redlight Media - Set Accountnumber depending on VAT
* @author Redlight Media AB / Christopher Hedqvist
* @compatible WooCommerce 4.6.0
*/
function redlight_fortnox_account_based_on_vat($orderData) {
    foreach($orderData['Order']['OrderRows'] as $i => $item) {
      if( $item['VAT'] == 25 ){
        $orderData['Order']['OrderRows'][$i]['AccountNumber'] = 3001;
      } 
      if( $item['VAT'] == 12 ){
        $orderData['Order']['OrderRows'][$i]['AccountNumber'] = 3002;
      }
      if( $item['VAT'] == 6 ){
        $orderData['Order']['OrderRows'][$i]['AccountNumber'] = 3003;
      }
    }
return $orderData;
}
add_filter('obj_fortnox_order_data', 'redlight_fortnox_account_based_on_vat', 10 );