diff --git a/application/Espo/Core/Api/ActionProcessor.php b/application/Espo/Core/Api/ActionProcessor.php
index 60f733de6e..3a7570f6bd 100644
--- a/application/Espo/Core/Api/ActionProcessor.php
+++ b/application/Espo/Core/Api/ActionProcessor.php
@@ -30,6 +30,7 @@
 namespace Espo\Core\Api;
 
 use Espo\Core\Exceptions\NotFound;
+use Espo\Core\Exceptions\NotFoundSilent;
 use Espo\Core\InjectableFactory;
 use Espo\Core\Utils\ClassFinder;
 use Espo\Core\Utils\Json;
@@ -80,7 +81,7 @@ class ActionProcessor
             $actionMethodName;
 
         if (!method_exists($controller, $primaryActionMethodName)) {
-            throw new NotFound(
+            throw new NotFoundSilent(
                 "Action {$requestMethod} '{$actionName}' does not exist in controller '{$controllerName}'.");
         }
 
diff --git a/application/Espo/Core/Exceptions/BadRequest.php b/application/Espo/Core/Exceptions/BadRequest.php
index 9c8ebd0a3b..b71f5954b1 100644
--- a/application/Espo/Core/Exceptions/BadRequest.php
+++ b/application/Espo/Core/Exceptions/BadRequest.php
@@ -29,13 +29,14 @@
 
 namespace Espo\Core\Exceptions;
 
+use Espo\Core\Utils\Log;
 use Throwable;
 use Exception;
 
 /**
  * A bad request exception. Main purpose is for the 400 Bad Request HTTP error.
  */
-class BadRequest extends Exception implements HasBody
+class BadRequest extends Exception implements HasBody, HasLogLevel
 {
     /** @var int */
     protected $code = 400;
@@ -61,4 +62,9 @@ class BadRequest extends Exception implements HasBody
     {
         return $this->body;
     }
+
+    public function getLogLevel(): string
+    {
+        return Log::LEVEL_WARNING;
+    }
 }
diff --git a/application/Espo/Core/Exceptions/Forbidden.php b/application/Espo/Core/Exceptions/Forbidden.php
index 4cbf2178b9..4b02337e07 100644
--- a/application/Espo/Core/Exceptions/Forbidden.php
+++ b/application/Espo/Core/Exceptions/Forbidden.php
@@ -29,13 +29,14 @@
 
 namespace Espo\Core\Exceptions;
 
+use Espo\Core\Utils\Log;
 use Throwable;
 use Exception;
 
 /**
  * A forbidden exception. Main purpose is for the 403 Forbidden HTTP error.
  */
-class Forbidden extends Exception implements HasBody
+class Forbidden extends Exception implements HasBody, HasLogLevel
 {
     /** @var int */
     protected $code = 403;
@@ -62,4 +63,9 @@ class Forbidden extends Exception implements HasBody
     {
         return $this->body;
     }
+
+    public function getLogLevel(): string
+    {
+        return Log::LEVEL_WARNING;
+    }
 }
diff --git a/application/Espo/Core/Exceptions/NotFound.php b/application/Espo/Core/Exceptions/NotFound.php
index dbfd2d04e5..748e9b5321 100644
--- a/application/Espo/Core/Exceptions/NotFound.php
+++ b/application/Espo/Core/Exceptions/NotFound.php
@@ -29,13 +29,19 @@
 
 namespace Espo\Core\Exceptions;
 
+use Espo\Core\Utils\Log;
 use Exception;
 
 /**
  * A not-found exception. Main purpose is for the 404 Not Found HTTP error.
  */
-class NotFound extends Exception
+class NotFound extends Exception implements HasLogLevel
 {
     /** @var int */
     protected $code = 404;
+
+    public function getLogLevel(): string
+    {
+        return Log::LEVEL_WARNING;
+    }
 }