diff --git a/src/Suite/Api/ContactListEndPoints.php b/src/Suite/Api/ContactListEndPoints.php
index 2bda636..bade84a 100644
--- a/src/Suite/Api/ContactListEndPoints.php
+++ b/src/Suite/Api/ContactListEndPoints.php
@@ -57,11 +57,17 @@ public function contactIdsInList(int $customerId, int $contactListId, int $top =
 
     public function contactIdsInListNextChunk(int $customerId, string $next = null): ?string
     {
-        return $next ? "{$this->apiBaseUrl}/{$customerId}{$next}" : null;
+
+        return $next ? $this->getBaseUrlWithoutInternalPostfix() . "{$next}" : null;
     }
     
     public function deleteContactsFromList(int $customerId, int $contactListId): string
     {
         return $this->baseUrl($customerId) . "/{$contactListId}/delete";
     }
+
+    public function getBaseUrlWithoutInternalPostfix(): string
+    {
+        return preg_replace('/\/internal$/', '', $this->apiBaseUrl);
+    }
 }
diff --git a/test/helper/AcceptanceBaseTestCase.php b/test/helper/AcceptanceBaseTestCase.php
index 1c3856f..163cca0 100644
--- a/test/helper/AcceptanceBaseTestCase.php
+++ b/test/helper/AcceptanceBaseTestCase.php
@@ -26,7 +26,7 @@ class AcceptanceBaseTestCase extends \PHPUnit\Framework\TestCase
     /**
      * @var string
      */
-    protected $apiBaseUrl = 'http://localhost:7984';
+    protected $apiBaseUrl = 'http://localhost:7984/internal';
 
     protected function setUp(): void
     {
diff --git a/test/helper/ApiStub.php b/test/helper/ApiStub.php
index eadedbd..65845d4 100644
--- a/test/helper/ApiStub.php
+++ b/test/helper/ApiStub.php
@@ -24,42 +24,42 @@ public static function setUp()
         $app->before(self::authenticateWithEscher());
         $app->error(self::handleError());
 
-        $app->get('/', self::clientTestEndPoint());
+        $app->get('/internal/', self::clientTestEndPoint());
 
         foreach (include __DIR__.'/stubs.php' as $route => $data) {
             $app->get($route, function () use ($data) { return self::success($data); });
         }
 
-        $app->post('/{customerId}/email/{campaignId}/preview/', function (Request $request) {
+        $app->post('/internal/{customerId}/email/{campaignId}/preview/', function (Request $request) {
             $params = json_decode($request->getContent(), true);
             return new Response(self::success('"'.$params['version'].' version"'));
         });
 
-        $app->post('/{customerId}/email/{campaignId}/launch/', function (Request $request) {
+        $app->post('/internal/{customerId}/email/{campaignId}/launch/', function (Request $request) {
             return new Response(self::success("null"));
         });
 
-        $app->post('/{customerId}/email/delete/', function (Request $request) {
+        $app->post('/internal/{customerId}/email/delete/', function (Request $request) {
             return new Response(self::success("null"));
         });
 
-        $app->get('/serverError', function (Request $request) {
+        $app->get('/internal/serverError', function (Request $request) {
             self::logRetry();
             return new Response(self::error("null"), 500);
         });
 
-        $app->get('/retryCount', function (Request $request) {
+        $app->get('/internal/retryCount', function (Request $request) {
             return new Response(self::success(self::getRetryCount()));
         });
 
-        $app->get('/{customerId}/contactlist/{contactListId}/contactIds', function (Request $request, $contactListId) {
+        $app->get('/internal/{customerId}/contactlist/{contactListId}/contactIds', function (Request $request, $contactListId, $customerId) {
             return match ($contactListId) {
                 (string) self::LIST_ID_FOR_EMPTY_LIST => new Response(self::success('{"value":[],"next":null}')),
                 (string) self::LIST_ID_FOR_LIST_WITH_SINGLE_CHUNK => new Response(self::success('{"value":[1,2,3],"next":null}')),
                 (string) self::LIST_ID_FOR_LIST_WITH_MULTIPLE_CHUNKS => match ($request->query->get('$skiptoken') ?? '0') {
-                    '0' => new Response(self::success('{"value":[1,2,3],"next":"/contactlist/'.$contactListId.'/contactIds?$skiptoken=1"}')),
-                    '1' => new Response(self::success('{"value":[4,5,6],"next":"/contactlist/'.$contactListId.'/contactIds?$skiptoken=2"}')),
-                    '2' => new Response(self::success('{"value":[7,8,9],"next":"/contactlist/'.$contactListId.'/contactIds?$skiptoken=3"}')),
+                    '0' => new Response(self::success('{"value":[1,2,3],"next":"/internal/'.$customerId.'/contactlist/'.$contactListId.'/contactIds?$skiptoken=1"}')),
+                    '1' => new Response(self::success('{"value":[4,5,6],"next":"/internal/'.$customerId.'/contactlist/'.$contactListId.'/contactIds?$skiptoken=2"}')),
+                    '2' => new Response(self::success('{"value":[7,8,9],"next":"/internal/'.$customerId.'/contactlist/'.$contactListId.'/contactIds?$skiptoken=3"}')),
                     '3' => new Response(self::success('{"value":[10,11],"next":null}')),
                 },
                 (string) self::LIST_ID_FOR_WRONG_RESPONSE => new Response(self::error('invalid response format')),
diff --git a/test/helper/stubs.php b/test/helper/stubs.php
index 4c4b278..f5d9169 100644
--- a/test/helper/stubs.php
+++ b/test/helper/stubs.php
@@ -1,5 +1,5 @@
 <?php return [
-    '/{customerId}/email/{campaignId}/' => '{
+    '/internal/{customerId}/email/{campaignId}/' => '{
         "id": "1",
         "language": "en",
         "name": "20160407_1502_Copy of Test mail 1",
@@ -35,7 +35,7 @@
         "source": "userlist"
     }',
 
-    '/{customerId}/email/' => '[
+    '/internal/{customerId}/email/' => '[
         {
           "id": "2",
           "administrator": "3",
@@ -87,7 +87,7 @@
           "source": "profile"
         }
     ]',
-    '/{customerId}/administrator/' => '[
+    '/internal/{customerId}/administrator/' => '[
         {
             "id": "1",
             "username": "admin",
@@ -130,7 +130,7 @@
         }
     ]',
 
-    '/{customerId}/event' => '[
+    '/internal/{customerId}/event' => '[
         {
             "id": "1",
             "name": "event egy",
@@ -149,7 +149,7 @@
         }
     ]',
 
-    '/{customerId}/filter' => '[
+    '/internal/{customerId}/filter' => '[
         {
             "id": "1",
             "name": "segment 1",