diff --git a/src/Events/Events.php b/src/Events/Events.php
index 790bf11..cb8dabe 100644
--- a/src/Events/Events.php
+++ b/src/Events/Events.php
@@ -269,10 +269,11 @@ public function holdBestAvailable($eventKey, $number, $holdToken, $categories =
      * @param $status string
      * @param $categories string[]
      * @param $holdToken string
+     * @param $extraData array
      * @param $orderId string
      * @return BestAvailableObjects
      */
-    public function changeBestAvailableObjectStatus($eventKey, $number, $status, $categories = null, $holdToken = null, $orderId = null)
+    public function changeBestAvailableObjectStatus($eventKey, $number, $status, $categories = null, $holdToken = null, $extraData = null, $orderId = null)
     {
         $request = new \stdClass();
         $bestAvailable = new \stdClass();
@@ -280,6 +281,9 @@ public function changeBestAvailableObjectStatus($eventKey, $number, $status, $ca
         if ($categories !== null) {
             $bestAvailable->categories = $categories;
         }
+        if ($extraData != null) {
+            $bestAvailable->extraData = $extraData;
+        }
         $request->bestAvailable = $bestAvailable;
         $request->status = $status;
         if ($holdToken !== null) {
diff --git a/tests/Events/ChangeBestAvailableObjectStatusTest.php b/tests/Events/ChangeBestAvailableObjectStatusTest.php
index e75b7b0..1fb7e93 100644
--- a/tests/Events/ChangeBestAvailableObjectStatusTest.php
+++ b/tests/Events/ChangeBestAvailableObjectStatusTest.php
@@ -28,6 +28,24 @@ public function testCategories()
         self::assertEquals(["C-4", "C-5", "C-6"], $bestAvailableObjects->objects, '', 0.0, 10, true);
     }
 
+    public function testExtraData()
+    {
+        $chartKey = $this->createTestChart();
+        $event = $this->seatsioClient->events()->create($chartKey);
+        $extraData = [
+            ["foo" => "bar"],
+            ["foo" => "baz"]
+        ];
+
+        $bestAvailableObjects = $this->seatsioClient->events()->changeBestAvailableObjectStatus($event->key, 2, "lolzor", null, null, $extraData);
+
+        self::assertEquals(["B-4", "B-5"], $bestAvailableObjects->objects, '', 0.0, 10, true);
+        $b4Status = $this->seatsioClient->events()->retrieveObjectStatus($event->key, "B-4");
+        self::assertEquals($b4Status->extraData, (object)["foo" => "bar"]);
+        $b5Status = $this->seatsioClient->events()->retrieveObjectStatus($event->key, "B-5");
+        self::assertEquals($b5Status->extraData, (object)["foo" => "baz"]);
+    }
+
     public function testHoldToken()
     {
         $chartKey = $this->createTestChart();
@@ -46,13 +64,13 @@ public function testOrderId()
         $chartKey = $this->createTestChart();
         $event = $this->seatsioClient->events()->create($chartKey);
 
-        $bestAvailableObjects = $this->seatsioClient->events()->changeBestAvailableObjectStatus($event->key, 1, "lolzor", null, null, "anOrder");
+        $bestAvailableObjects = $this->seatsioClient->events()->changeBestAvailableObjectStatus($event->key, 1, "lolzor", null, null, null, "anOrder");
 
         $objectStatus = $this->seatsioClient->events()->retrieveObjectStatus($event->key, $bestAvailableObjects->objects[0]);
         self::assertEquals("anOrder", $objectStatus->orderId);
     }
 
-    public function book()
+    public function testBook()
     {
         $chartKey = $this->createTestChart();
         $event = $this->seatsioClient->events()->create($chartKey);
@@ -60,10 +78,10 @@ public function book()
         $bestAvailableObjects = $this->seatsioClient->events()->bookBestAvailable($event->key, 3);
 
         self::assertTrue($bestAvailableObjects->nextToEachOther);
-        self::assertEquals(["B-3", "B-4", "B-5"], $bestAvailableObjects->objects, '', 0.0, 10, true);
+        self::assertEquals(["B-4", "B-5", "B-6"], $bestAvailableObjects->objects, '', 0.0, 10, true);
     }
 
-    public function hold()
+    public function testHold()
     {
         $chartKey = $this->createTestChart();
         $event = $this->seatsioClient->events()->create($chartKey);