diff --git a/src/Enums/ApiError.php b/src/Enums/ApiError.php
index 3e6769d..b4d7a17 100644
--- a/src/Enums/ApiError.php
+++ b/src/Enums/ApiError.php
@@ -47,6 +47,9 @@ use Kwaadpepper\Enum\BaseEnum;
  * a replay attack scenario. Timestamps are provided in headers
  * and in the http body
  *
+ * @method static self missingParameter()
+ * The request is missing some parameters
+ *
  * @method static self throttleRequestsException()
  * Too many requests have been attempted. The is a throttle security.
  * Normally you should not trigger this.
@@ -78,6 +81,7 @@ class ApiError extends BaseEnum
             'singleOptinCustomerExists' => 120,
             'methodNotAllowed' => 150,
             'wrongTimeStamp' => 151,
+            'missingParameter' => 400,
             'authorizationException' => 403,
             'throttleRequestsException' => 429
         ];
@@ -96,6 +100,7 @@ class ApiError extends BaseEnum
             'needAuth' => 'Vous devez être authentifié',
             'methodNotAllowed' => 'This method is not allowed for this request',
             'wrongTimeStamp' => 'Your request is malformed, please check timestamp header and parameter',
+            'missingParameter' => 'The request is missing some parameters',
             'authorizationException' => 'You are not autorized to access this',
             'throttleRequestsException' => 'Throttle: too many request have been attempted, please retry later'
         ];