diff --git a/application/Espo/Core/Services/Base.php b/application/Espo/Core/Services/Base.php
index aa65017929..5f37cf5cfc 100644
--- a/application/Espo/Core/Services/Base.php
+++ b/application/Espo/Core/Services/Base.php
@@ -34,71 +34,71 @@ use Espo\Core\Interfaces\Injectable;
 /** @deprecated */
 abstract class Base implements Injectable
 {
-    protected $dependencyList = [
+    protected $dependencyList = [ /** @phpstan-ignore-line */
         'config',
         'entityManager',
         'user',
         'serviceFactory',
     ];
 
-    protected $injections = [];
+    protected $injections = []; /** @phpstan-ignore-line */
 
-    public function inject($name, $object)
+    public function inject($name, $object) /** @phpstan-ignore-line */
     {
         $this->injections[$name] = $object;
     }
 
-    public function __construct()
+    public function __construct() /** @phpstan-ignore-line */
     {
         $this->init();
     }
 
-    protected function init()
+    protected function init() /** @phpstan-ignore-line */
     {
     }
 
-    public function prepare()
+    public function prepare() /** @phpstan-ignore-line */
     {
     }
 
-    protected function getInjection($name)
+    protected function getInjection($name) /** @phpstan-ignore-line */
     {
         return $this->injections[$name] ?? $this->$name ?? null;
     }
 
-    protected function addDependency($name)
+    protected function addDependency($name) /** @phpstan-ignore-line */
     {
         $this->dependencyList[] = $name;
     }
 
-    protected function addDependencyList(array $list)
+    protected function addDependencyList(array $list) /** @phpstan-ignore-line */
     {
         foreach ($list as $item) {
             $this->addDependency($item);
         }
     }
 
-    public function getDependencyList()
+    public function getDependencyList() /** @phpstan-ignore-line */
     {
         return $this->dependencyList;
     }
 
-    protected function getEntityManager()
+    protected function getEntityManager() /** @phpstan-ignore-line */
     {
         return $this->getInjection('entityManager');
     }
 
-    protected function getConfig()
+    protected function getConfig() /** @phpstan-ignore-line */
     {
         return $this->getInjection('config');
     }
 
-    protected function getUser()
+    protected function getUser() /** @phpstan-ignore-line */
     {
         return $this->getInjection('user');
     }
 
-    protected function getServiceFactory()
+    protected function getServiceFactory() /** @phpstan-ignore-line */
     {
         return $this->getInjection('serviceFactory');
     }
diff --git a/application/Espo/Core/Sms/SenderFactory.php b/application/Espo/Core/Sms/SenderFactory.php
index e548805e73..0638094054 100644
--- a/application/Espo/Core/Sms/SenderFactory.php
+++ b/application/Espo/Core/Sms/SenderFactory.php
@@ -39,11 +39,11 @@ use RuntimeException;
 
 class SenderFactory implements Factory
 {
-    private $config;
+    private Config $config;
 
-    private $metadata;
+    private Metadata $metadata;
 
-    private $injectableFactory;
+    private InjectableFactory $injectableFactory;
 
     public function __construct(
         Config $config,
@@ -63,6 +63,7 @@ class SenderFactory implements Factory
             throw new RuntimeException("No `smsProvider` in config.");
         }
 
+        /** @var ?class-string */
         $className = $this->metadata->get(['app', 'smsProviders', $provider, 'senderClassName']);
 
         if (!$className) {
diff --git a/application/Espo/Core/Sms/SmsFactory.php b/application/Espo/Core/Sms/SmsFactory.php
index 1fbb4ef225..cf5fd7b71e 100644
--- a/application/Espo/Core/Sms/SmsFactory.php
+++ b/application/Espo/Core/Sms/SmsFactory.php
@@ -37,7 +37,7 @@ use Espo\Entities\Sms as SmsEntity;
  */
 class SmsFactory
 {
-    private $entityManager;
+    private EntityManager $entityManager;
 
     public function __construct(EntityManager $entityManager)
     {