diff --git a/intaro.retailcrm/lang/en/options.php b/intaro.retailcrm/lang/en/options.php
index df3f536b..ea4f29d0 100644
--- a/intaro.retailcrm/lang/en/options.php
+++ b/intaro.retailcrm/lang/en/options.php
@@ -107,3 +107,6 @@ For the integration to work correctly, the currencies in CRM and CMS must match'
 
 $MESS ['ACTIVITY_SETTINGS'] = 'Module activity settings';
 $MESS ['DEACTIVATE_MODULE'] = 'Deactivate the module';
+
+$MESS ['WRONG_CREDENTIALS'] = 'Enter the address and authorization key of the CRM system';
+$MESS ['Wrong "apiKey" value.'] = 'Invalid authorization key';
diff --git a/intaro.retailcrm/lang/ru/options.php b/intaro.retailcrm/lang/ru/options.php
index 1424dc2e..d96fb87c 100644
--- a/intaro.retailcrm/lang/ru/options.php
+++ b/intaro.retailcrm/lang/ru/options.php
@@ -166,3 +166,6 @@ $MESS ['TEMPLATE_COPING_ERROR'] = 'Ошибка копирования шабл
 
 $MESS ['ACTIVITY_SETTINGS'] = 'Настройки активности модуля';
 $MESS ['DEACTIVATE_MODULE'] = 'Деактивировать модуль';
+
+$MESS ['WRONG_CREDENTIALS'] = 'Введите адрес и ключ авторизации CRM системы';
+$MESS ['Wrong "apiKey" value.'] = 'Недействительный ключ авторизации';
diff --git a/intaro.retailcrm/options.php b/intaro.retailcrm/options.php
index 022f4812..ea77b462 100644
--- a/intaro.retailcrm/options.php
+++ b/intaro.retailcrm/options.php
@@ -276,6 +276,10 @@ if (isset($_POST['Update']) && ($_POST['Update'] === 'Y')) {
 
         COption::SetOptionString($mid, 'api_host', $api_host);
         COption::SetOptionString($mid, 'api_key', $api_key);
+    } else {
+        $uri .= '&errc=ERR_WRONG_CREDENTIALS';
+
+        LocalRedirect($uri);
     }
 
     //form order types ids arr
@@ -1065,7 +1069,7 @@ if (isset($_POST['Update']) && ($_POST['Update'] === 'Y')) {
     $errorsText = [];
 
     if (preg_match('/&errc=ERR_(.*)/is', $APPLICATION->GetCurUri(), $matches)) {
-        $errorsText[] = urldecode($matches[1]);
+        $errorsText[] = GetMessage(urldecode($matches[1]));
     }
 
     if (empty($errorsText)) {