diff --git a/src/Mapper/CampaignAffiliatePolicyStatusMapper.php b/src/Mapper/CampaignAffiliatePolicyStatusMapper.php
index 62efd2b..fb1b7dc 100644
--- a/src/Mapper/CampaignAffiliatePolicyStatusMapper.php
+++ b/src/Mapper/CampaignAffiliatePolicyStatusMapper.php
@@ -13,9 +13,6 @@ class CampaignAffiliatePolicyStatusMapper implements MapperInterface
      */
     public function hydrate($value)
     {
-        $campaignAffiliatePolicyStatus = new CampaignAffiliatePolicyStatus();
-        $campaignAffiliatePolicyStatus->setStatus($value);
-
-        return $campaignAffiliatePolicyStatus;
+        return new CampaignAffiliatePolicyStatus($value);
     }
 }
diff --git a/src/Mapper/CampaignAssignmentStatusMapper.php b/src/Mapper/CampaignAssignmentStatusMapper.php
index 9f5db86..8049b8f 100644
--- a/src/Mapper/CampaignAssignmentStatusMapper.php
+++ b/src/Mapper/CampaignAssignmentStatusMapper.php
@@ -13,9 +13,6 @@ class CampaignAssignmentStatusMapper implements MapperInterface
      */
     public function hydrate($value)
     {
-        $campaignAssignmentStatus = new CampaignAssignmentStatus();
-        $campaignAssignmentStatus->setStatus($value);
-
-        return $campaignAssignmentStatus;
+        return new CampaignAssignmentStatus($value);
     }
 }
diff --git a/src/Model/CampaignAffiliatePolicyStatus.php b/src/Model/CampaignAffiliatePolicyStatus.php
index b2a685a..433778b 100644
--- a/src/Model/CampaignAffiliatePolicyStatus.php
+++ b/src/Model/CampaignAffiliatePolicyStatus.php
@@ -18,7 +18,7 @@ class CampaignAffiliatePolicyStatus
      *
      * @param string|null $status
      */
-    public function __construct($status)
+    public function __construct($status = null)
     {
         $this->status = $status;
     }
diff --git a/src/Model/CampaignAssignmentStatus.php b/src/Model/CampaignAssignmentStatus.php
index ff5495d..895af02 100644
--- a/src/Model/CampaignAssignmentStatus.php
+++ b/src/Model/CampaignAssignmentStatus.php
@@ -21,7 +21,7 @@ class CampaignAssignmentStatus
      *
      * @param string|null $status
      */
-    public function __construct($status)
+    public function __construct($status = null)
     {
         $this->status = $status;
     }