diff --git a/composer.json b/composer.json
index 9122dc2..3300392 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
         "psr/log": "^1.0",
         "sanmai/json-serializer": "^0.2.2",
         "sanmai/pipeline": "^5",
-        "sanmai/sdk-common": "^0.2.7",
+        "sanmai/sdk-common": "^0.2.8",
         "sanmai/version-info": "^0.2.0",
         "symfony/http-foundation": "^4.4.7 || ^5.0.7"
     },
diff --git a/examples/110_CreateAndSubmitOrder.php b/examples/110_CreateAndSubmitOrder.php
index ce988a4..1b6506b 100644
--- a/examples/110_CreateAndSubmitOrder.php
+++ b/examples/110_CreateAndSubmitOrder.php
@@ -33,14 +33,16 @@
 
 include_once 'vendor/autoload.php';
 
+$logger = new DebuggingLogger();
+
 $builder = new \YDeliverySDK\ClientBuilder();
 $builder->setToken($_SERVER['YANDEX_DELIVERY_TOKEN'] ?? '');
-$builder->setLogger(new DebuggingLogger());
+$builder->setLogger($logger);
 /** @var \YDeliverySDK\Client $client */
 $client = $builder->build();
 
 /**
- * Получим данные по адресу.
+ * Получим данные по адресу получателя.
  */
 $response = $client->makeLocationRequest('Новосибирская область, Новосибирск');
 
@@ -75,6 +77,7 @@
 
 $request->senderId = $_SERVER['YANDEX_SHOP_ID'];
 
+$request->from->geoId = $_SERVER['YANDEX_SENDER_GEOID'];
 $request->to->location = 'Новосибирск, ул. Державина, 5';
 
 $request->dimensions->length = $length = 10;
@@ -88,12 +91,15 @@
 $request->shipment->date = new DateTime('next Monday');
 $request->shipment->type = $request->shipment::TYPE_WITHDRAW;
 
-$request->cost->assessedValue = 500;
+$request->cost->assessedValue = 1000;
 $request->cost->itemsSum = 1000;
 $request->cost->fullyPrepaid = true;
 
 // $request->tariffId = 333333333;
 
+$logger->addFile('delivery-options-request.json');
+$logger->addFile('delivery-options-response.json');
+
 $response = $client->sendDeliveryOptionsRequest($request);
 
 if (!\count($response)) {
@@ -164,6 +170,9 @@
 $contact->firstName = 'Василий';
 $contact->lastName = 'Юрочкин';
 
+$logger->addFile('create-order-request.json');
+$logger->addFile('create-order-response.json');
+
 $response = $client->sendCreateOrderRequest($request);
 
 if ($response->hasErrors()) {
@@ -181,6 +190,9 @@
 $request = new SubmitOrderRequest();
 $request->orderIds = [$response->id];
 
+$logger->addFile('submit-order-request.json');
+$logger->addFile('submit-order-response.json');
+
 $response = $client->sendSubmitOrderRequest($request);
 
 if ($response->hasErrors()) {
diff --git a/tests/Integration/DebuggingLogger.php b/tests/Integration/DebuggingLogger.php
index 0d0c216..54e59bb 100644
--- a/tests/Integration/DebuggingLogger.php
+++ b/tests/Integration/DebuggingLogger.php
@@ -35,13 +35,8 @@ final class DebuggingLogger implements LoggerInterface
 {
     use LoggerTrait;
 
-    /**
-     * Если нужна запись в файл, то нужно скопировать этот файл себе в проект, заменив namespace, и поменять константу ниже на true.
-     * Лог будет записан в delivery-requests.log в корне проекта.
-     *
-     * @var bool
-     */
-    private const WRITE_LOG_TO_FILE = false;
+    /** @var string[] */
+    private $filename = [];
 
     /**
      * @param mixed  $level
@@ -56,7 +51,7 @@ public function log($level, $message, array $context = [])
             $message = \strtr($message, \iterator_to_array(self::context2replacements($context), true));
         }
 
-        if (!self::WRITE_LOG_TO_FILE && \strpos($message, 'WITHDRAW') !== false) {
+        if (\strpos($message, 'WITHDRAW') !== false) {
             // Заявка на Забор (WITHDRAW) тарифицируется сразу же как была подтверждена службой доставки.
             \trigger_error('Forbidden request', E_USER_ERROR);
         }
@@ -64,30 +59,20 @@ public function log($level, $message, array $context = [])
         // В целях отладки приведём JSON в читаемый вид
         if (\strpos($message, '{') === 0 || \strpos($message, '[') === 0) {
             $message = \json_encode(\json_decode($message), JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+
+            if ($this->filename !== []) {
+                $saveTo = \array_shift($this->filename);
+                \file_put_contents($saveTo, $message);
+                \fwrite(\STDERR, "\n\n(Saved below message to $saveTo)");
+            }
         }
 
-        \fwrite(self::WRITE_LOG_TO_FILE ? $this->getLogFileHandle() : \STDERR, "\n{$message}\n\n");
+        \fwrite(\STDERR, "\n{$message}\n\n");
     }
 
-    private const LOG_FILE = 'delivery-requests.log';
-
-    /**
-     * Возвращает указатель на открытый файл delivery-requests.log в корне проекта.
-     *
-     * @return resource
-     */
-    private static function getLogFileHandle()
+    public function addFile(string $filename): void
     {
-        static $fh;
-
-        if (!$fh) {
-            $reflection = new \ReflectionClass(\Composer\Autoload\ClassLoader::class);
-            $fh = \fopen(\dirname((string) $reflection->getFileName(), 3).DIRECTORY_SEPARATOR.self::LOG_FILE, 'a');
-        }
-
-        \assert(\is_resource($fh));
-
-        return $fh;
+        $this->filename[] = $filename;
     }
 
     /**