Patch-Klarna_Kco-8-fix-total-base-calculation-plugin.patch

--- Plugin/Carrier/UpdateShippingGateway/TotalBaseCalculatorPlugin.php
+++ Plugin/Carrier/UpdateShippingGateway/TotalBaseCalculatorPlugin.php
@@ -25,13 +25,29 @@
     private $kssShipping;
 
     /**
+     * @var \Magento\Store\Model\StoreManager $storeManager
+     */
+    protected $storeManager;
+
+    /**
+     * @var \Klarna\Kco\Model\Provider\Base\Config $kcoConfig
+     */
+    protected $kcoConfig;
+
+    /**
      * @param KssShipping $kssShipping
+     * @param \Magento\Store\Model\StoreManager $storeManager
+     * @param \Klarna\Kco\Model\Provider\Base\Config $kcoConfig
      * @codeCoverageIgnore
      */
     public function __construct(
-        KssShipping $kssShipping
+        KssShipping $kssShipping,
+        \Magento\Store\Model\StoreManager $storeManager,
+        \Klarna\Kco\Model\Provider\Base\Config $kcoConfig
     ) {
         $this->kssShipping = $kssShipping;
+        $this->storeManager = $storeManager;
+        $this->kcoConfig = $kcoConfig;
     }
 
     /**
@@ -53,6 +69,9 @@
         $storeId,
         $round
     ): TaxDetailsItemInterface {
-        return $this->kssShipping->updateShippingValues($result);
+        $store = $this->storeManager->getStore();
+        $isKlarnaCheckoutPaymentEnabled = $this->kcoConfig->isKlarnaCheckoutPaymentEnabled($store);
+
+        return $isKlarnaCheckoutPaymentEnabled ? $this->kssShipping->updateShippingValues($result) : $result;
     }
 }