diff --git a/classes/Carrier/SendCloud/SendCloudApi.php b/classes/Carrier/SendCloud/SendCloudApi.php
index 9099f8de..18f87bff 100644
--- a/classes/Carrier/SendCloud/SendCloudApi.php
+++ b/classes/Carrier/SendCloud/SendCloudApi.php
@@ -28,16 +28,21 @@ class SendCloudApi
     $this->private_key = $private_key;
   }
 
+  /**
+   * @throws SendcloudApiException
+   */
   public function GetSenderAddresses(): array
   {
     $uri = self::PROD_BASE_URI . '/user/addresses/sender';
     $response = $this->sendRequest($uri);
-    $res = array();
-    foreach ($response->sender_addresses as $item)
+    foreach ($response['body']->sender_addresses as $item)
       $res[] = SenderAddress::fromApiResponse($item);
-    return $res;
+    return $res ?? [];
   }
 
+  /**
+   * @throws SendcloudApiException
+   */
   public function GetShippingProducts(string $sourceCountry, ?string $targetCountry = null, ?int $weight = null,
                                       ?int   $height = null, ?int $length = null, ?int $width = null): array
   {
@@ -60,26 +65,36 @@ class SendCloudApi
       $params['width_unit'] = 'centimeter';
     }
     $response = $this->sendRequest($uri, $params);
-    return array_map(fn($x) => ShippingProduct::fromApiResponse($x), $response ?? []);
+    return array_map(fn($x) => ShippingProduct::fromApiResponse($x), $response['body'] ?? []);
   }
 
+  /**
+   * @throws SendcloudApiException
+   */
   public function CreateParcel(ParcelCreation $parcel): ParcelResponse|string|null
   {
     $uri = self::PROD_BASE_URI . '/parcels';
-    $response = $this->sendRequest($uri, null, true, [
-        'parcel' => $parcel->toApiRequest()
-    ]);
-    try {
-      if (isset($response->parcel))
-        return ParcelResponse::fromApiResponse($response->parcel);
-      if (isset($response->error))
-        return $response->error->message;
-    } catch (Exception $e) {
-      return $e->getMessage();
-  }
-    return null;
+    $response = $this->sendRequest($uri, null, true, ['parcel' => $parcel->toApiRequest()], [200,400]);
+    switch ($response['code']) {
+      case 200:
+        if (isset($response->parcel))
+          try {
+            return ParcelResponse::fromApiResponse($response->parcel);
+          } catch (Exception $e) {
+            throw new SendcloudApiException(previous: $e);
+          }
+        break;
+      case 400:
+        if (isset($response->error))
+          return $response->error->message;
+        break;
+    }
+    throw SendcloudApiException::fromResponse($response);
   }
 
+  /**
+   * @throws SendcloudApiException
+   */
   public function DownloadDocument(Document $document): string
   {
     $curl = curl_init();
@@ -90,10 +105,18 @@ class SendCloudApi
             "Authorization: Basic " . base64_encode($this->public_key . ':' . $this->private_key)
         ],
     ]);
-    return curl_exec($curl);
+    $output = curl_exec($curl);
+    $code = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
+    if ($code != 200)
+      throw SendcloudApiException::fromResponse(['code' => $code, 'body' => $output]);
+    return $output;
   }
 
-  function sendRequest(string $uri, array $query_params = null, bool $post = false, array $postFields = null)
+  /**
+   * @throws SendcloudApiException
+   */
+  function sendRequest(string $uri, array $query_params = null, bool $post = false, array $postFields = null,
+                       array $allowedResponseCodes = [200]): ?array
   {
     if (empty($this->public_key) || empty($this->private_key))
       return null;
@@ -117,9 +140,18 @@ class SendCloudApi
       ]);
     }
 
-    $output = curl_exec($curl);
+    $output = json_decode(curl_exec($curl));
+    $code = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
     curl_close($curl);
 
-    return json_decode($output);
+    $ret = [
+        'code' => $code,
+        'body' => $output,
+    ];
+
+    if (!in_array($code, $allowedResponseCodes))
+      throw SendcloudApiException::fromResponse($ret);
+
+    return $ret;
   }
 }
\ No newline at end of file
diff --git a/classes/Carrier/SendCloud/SendcloudApiException.php b/classes/Carrier/SendCloud/SendcloudApiException.php
new file mode 100644
index 00000000..247fa9af
--- /dev/null
+++ b/classes/Carrier/SendCloud/SendcloudApiException.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Xentral\Carrier\SendCloud;
+
+use Exception;
+
+class SendcloudApiException extends Exception
+{
+  public static function fromResponse(array $response) : SendcloudApiException {
+    if (!isset($response['body']) || !is_object($response['body']))
+      return new SendcloudApiException();
+
+    return new SendcloudApiException(
+        $response['body']->error->message ?? '',
+        $response['body']->error->code ?? 0
+    );
+  }
+}
\ No newline at end of file
diff --git a/www/lib/versandarten/sendcloud.php b/www/lib/versandarten/sendcloud.php
index 1b426290..a14e6225 100644
--- a/www/lib/versandarten/sendcloud.php
+++ b/www/lib/versandarten/sendcloud.php
@@ -8,6 +8,7 @@ use Xentral\Carrier\SendCloud\SendCloudApi;
 use Xentral\Carrier\SendCloud\Data\SenderAddress;
 use Xentral\Carrier\SendCloud\Data\ShippingProduct;
 use Xentral\Carrier\SendCloud\Data\ShippingMethod;
+use Xentral\Carrier\SendCloud\SendcloudApiException;
 
 require_once dirname(__DIR__) . '/class.versanddienstleister.php';
 
@@ -22,6 +23,32 @@ class Versandart_sendcloud extends Versanddienstleister
     if (!isset($this->id))
       return;
     $this->api = new SendCloudApi($this->settings->public_key, $this->settings->private_key);
+  }
+
+  protected function FetchOptionsFromApi()
+  {
+    if (isset($this->options))
+      return;
+    try {
+      $list = $this->api->GetSenderAddresses();
+      foreach ($list as $item) {
+        /* @var SenderAddress $item */
+        $senderAddresses[$item->Id] = $item;
+      }
+      $senderCountry = $senderAddresses[$this->settings->sender_address]->Country ?? 'DE';
+      $list = $this->api->GetShippingProducts($senderCountry);
+      foreach ($list as $item) {
+        /* @var ShippingProduct $item */
+        $shippingProducts[$item->Code] = $item;
+      }
+    } catch (SendcloudApiException $e) {
+      $this->app->Tpl->addMessage('error', $e->getMessage());
+    }
+    $this->options['senders'] = array_map(fn(SenderAddress $x) => strval($x), $senderAddresses ?? []);
+    $this->options['products'] = array_map(fn(ShippingProduct $x) => $x->Name, $shippingProducts ?? []);
+    $this->options['products'][0] = '';
+    $this->options['selectedProduct'] = $shippingProducts[$this->settings->shipping_product] ?? [];
+    natcasesort($this->options['products']);
     $this->options['customs_shipment_types'] = [
         0 => 'Geschenk',
         1 => 'Dokumente',
@@ -31,27 +58,6 @@ class Versandart_sendcloud extends Versanddienstleister
     ];
   }
 
-  protected function FetchOptionsFromApi()
-  {
-    $list = $this->api->GetSenderAddresses();
-    foreach ($list as $item) {
-      /* @var SenderAddress $item */
-      $senderAddresses[$item->Id] = $item;
-    }
-    $senderCountry = $senderAddresses[$this->settings->sender_address]->Country ?? 'DE';
-    $list = $this->api->GetShippingProducts($senderCountry);
-    foreach ($list as $item) {
-      /* @var ShippingProduct $item */
-      $shippingProducts[$item->Code] = $item;
-    }
-
-    $this->options['senders'] = array_map(fn(SenderAddress $x) => strval($x), $senderAddresses ?? []);
-    $this->options['products'] = array_map(fn(ShippingProduct $x) => $x->Name, $shippingProducts ?? []);
-    $this->options['products'][0] = '';
-    $this->options['selectedProduct'] = $shippingProducts[$this->settings->shipping_product] ?? [];
-    natcasesort($this->options['products']);
-  }
-
   public function AdditionalSettings(): array
   {
     $this->FetchOptionsFromApi();
@@ -102,29 +108,33 @@ class Versandart_sendcloud extends Versanddienstleister
           $parcel->ParcelItems[] = $item;
         }
         $parcel->Weight = floatval($json->weight) * 1000;
-        $result = $this->api->CreateParcel($parcel);
-        if ($result instanceof ParcelResponse) {
-          $sql = "INSERT INTO versand 
-            (adresse, lieferschein, versandunternehmen, gewicht, tracking, tracking_link, anzahlpakete) 
-            VALUES 
-            ({$address['addressId']}, {$address['lieferscheinId']}, '$this->type',
-             '$json->weight', '$result->TrackingNumber', '$result->TrackingUrl', 1)";
-          $this->app->DB->Insert($sql);
-          $response['messages'][] = ['class' => 'info', 'text' => "Paketmarke wurde erfolgreich erstellt: $result->TrackingNumber"];
+        try {
+          $result = $this->api->CreateParcel($parcel);
+          if ($result instanceof ParcelResponse) {
+            $sql = "INSERT INTO versand 
+              (adresse, lieferschein, versandunternehmen, gewicht, tracking, tracking_link, anzahlpakete) 
+              VALUES 
+              ({$address['addressId']}, {$address['lieferscheinId']}, '$this->type',
+               '$json->weight', '$result->TrackingNumber', '$result->TrackingUrl', 1)";
+            $this->app->DB->Insert($sql);
+            $response['messages'][] = ['class' => 'info', 'text' => "Paketmarke wurde erfolgreich erstellt: $result->TrackingNumber"];
 
-          $doc = $result->GetDocumentByType(Document::TYPE_LABEL);
-          $filename = $this->app->erp->GetTMP() . join('_', ['Sendcloud', $doc->Type, $doc->Size, $result->TrackingNumber]) . '.pdf';
-          file_put_contents($filename, $this->api->DownloadDocument($doc));
-          $this->app->printer->Drucken($this->labelPrinterId, $filename);
+            $doc = $result->GetDocumentByType(Document::TYPE_LABEL);
+            $filename = $this->app->erp->GetTMP() . join('_', ['Sendcloud', $doc->Type, $doc->Size, $result->TrackingNumber]) . '.pdf';
+            file_put_contents($filename, $this->api->DownloadDocument($doc));
+            $this->app->printer->Drucken($this->labelPrinterId, $filename);
 
-          $doc = $result->GetDocumentByType(Document::TYPE_CN23);
-          $filename = $this->app->erp->GetTMP() . join('_', ['Sendcloud', $doc->Type, $doc->Size, $result->TrackingNumber]) . '.pdf';
-          file_put_contents($filename, $this->api->DownloadDocument($doc));
-          $this->app->printer->Drucken($this->documentPrinterId, $filename);
-        } else {
-          $response['messages'][] = ['class' => 'error', 'text' => $result];
+            $doc = $result->GetDocumentByType(Document::TYPE_CN23);
+            $filename = $this->app->erp->GetTMP() . join('_', ['Sendcloud', $doc->Type, $doc->Size, $result->TrackingNumber]) . '.pdf';
+            file_put_contents($filename, $this->api->DownloadDocument($doc));
+            $this->app->printer->Drucken($this->documentPrinterId, $filename);
+          } else {
+            $response['messages'][] = ['class' => 'error', 'text' => $result];
+          }
+          echo json_encode($response);
+        } catch (SendcloudApiException $e) {
+          $this->app->Tpl->addMessage('error', $e->getMessage());
         }
-        echo json_encode($response);
         $this->app->ExitXentral();
       }
     }
diff --git a/www/pages/versandarten.php b/www/pages/versandarten.php
index 01cbd46d..a7651401 100644
--- a/www/pages/versandarten.php
+++ b/www/pages/versandarten.php
@@ -209,6 +209,7 @@ class Versandarten {
                 WHERE `id` = $id LIMIT 1"
         );
 
+        $this->app->Tpl->Set('MESSAGE', '');
         $this->app->Tpl->addMessage('success', "Die Daten wurden erfolgreich gespeichert!");
       }
     }