diff --git a/doc/4. Known issues/README.md b/doc/4. Known issues/README.md
index 5707691..22e1ae2 100644
--- a/doc/4. Known issues/README.md	
+++ b/doc/4. Known issues/README.md	
@@ -1,3 +1,6 @@
 # Known issues
 
-Content
\ No newline at end of file
+## Подписка клиента
+
+Модуль успешно передает статус подписки клиента из Prestashop в CRM, когда этот статус меняется непосредственно в карточке клиента.
+В случае подписки клиента через форму подписки на странице сайта, Prestashop никак не уведомляет об этом модули. Следовательно, такое обновление статуса подписки не передается в CRM.
\ No newline at end of file
diff --git a/retailcrm/lib/RetailcrmCartUploader.php b/retailcrm/lib/RetailcrmCartUploader.php
index 141078f..940eff7 100644
--- a/retailcrm/lib/RetailcrmCartUploader.php
+++ b/retailcrm/lib/RetailcrmCartUploader.php
@@ -150,7 +150,7 @@ class RetailcrmCartUploader
             $response = static::$api->ordersGet($cartExternalId);
 
             if (!($response instanceof RetailcrmApiResponse)) {
-                //TODO
+                // TODO
                 // Extract address from cart (if exists) and append to customer?
                 // Or maybe this customer will not order anything, so we don't need it's address...
                 static::$api->customersCreate(RetailcrmOrderBuilder::buildCrmCustomer(new Customer($cart->id_customer)));
diff --git a/retailcrm/lib/RetailcrmExport.php b/retailcrm/lib/RetailcrmExport.php
index ff77d8e..7287acd 100644
--- a/retailcrm/lib/RetailcrmExport.php
+++ b/retailcrm/lib/RetailcrmExport.php
@@ -167,7 +167,7 @@ class RetailcrmExport
             if (!empty($orderCustomer->id)) {
                 $orderBuilder->setCmsCustomer($orderCustomer);
             } else {
-                //TODO
+                // TODO
                 // Caused crash before because of empty RetailcrmOrderBuilder::cmsCustomer.
                 // Current version *shouldn't* do this, but I suggest more tests for guest customers.
                 $orderBuilder->setCmsCustomer(null);
diff --git a/retailcrm/lib/events/RetailcrmMissingEvent.php b/retailcrm/lib/events/RetailcrmMissingEvent.php
index bd269ab..fdb203f 100644
--- a/retailcrm/lib/events/RetailcrmMissingEvent.php
+++ b/retailcrm/lib/events/RetailcrmMissingEvent.php
@@ -187,7 +187,7 @@ class RetailcrmMissingEvent extends RetailcrmAbstractEvent implements RetailcrmE
 
         foreach ($products as $product) {
             $item = [
-                //'productId' => $product['product_id'],
+                // 'productId' => $product['product_id'],
                 'offer' => ['externalId' => $product['product_id']],
                 'productName' => $product['product_name'],
                 'quantity' => $product['product_quantity'],