diff --git a/lib/Controller/ApiController.php b/lib/Controller/ApiController.php
index 8163b34d3..231131f56 100644
--- a/lib/Controller/ApiController.php
+++ b/lib/Controller/ApiController.php
@@ -472,7 +472,7 @@ public function getQuestion(int $formId, int $questionId): DataResponse {
 	#[CORS()]
 	#[NoAdminRequired()]
 	#[ApiRoute(verb: 'POST', url: '/api/v3/forms/{formId}/questions')]
-	public function newQuestion(int $formId, string $type, string $text = '', ?int $fromId = null): DataResponse {
+	public function newQuestion(int $formId, ?string $type = null, string $text = '', ?int $fromId = null): DataResponse {
 		$form = $this->getFormIfAllowed($formId);
 		if ($this->formsService->isFormArchived($form)) {
 			$this->logger->debug('This form is archived and can not be modified');
diff --git a/lib/Db/Question.php b/lib/Db/Question.php
index e83edb8be..4ad4b8a0a 100644
--- a/lib/Db/Question.php
+++ b/lib/Db/Question.php
@@ -36,14 +36,16 @@
 
 /**
  * @psalm-import-type FormsQuestionExtraSettings from ResponseDefinitions
+ * @psalm-import-type FormsQuestionType from ResponseDefinitions
  * @method int getFormId()
  * @method void setFormId(integer $value)
  * @method int getOrder()
  * @method void setOrder(integer $value)
+ * @psalm-method FormsQuestionType getType()
  * @method string getType()
- * @psalm-method 'date'|'dropdown'|'file'|'long'|'multiple'|'multiple_unique'|'short'|'time' getType()
+ * @psalm-method 'date'|'datetime'|'dropdown'|'file'|'long'|'multiple'|'multiple_unique'|'short'|'time' getType()
  * @method void setType(string $value)
- * @psalm-method void setType('date'|'dropdown'|'file'|'long'|'multiple'|'multiple_unique'|'short'|'time' $value)
+ * @psalm-method void setType('date'|'datetime'|'dropdown'|'file'|'long'|'multiple'|'multiple_unique'|'short'|'time' $value)
  * @method bool getIsRequired()
  * @method void setIsRequired(bool $value)
  * @method string getText()
@@ -77,7 +79,7 @@ public function __construct() {
 	 * @return FormsQuestionExtraSettings
 	 */
 	public function getExtraSettings(): array {
-		return json_decode($this->getExtraSettingsJson() ?: '{}', false, 512, JSON_THROW_ON_ERROR);
+		return json_decode($this->getExtraSettingsJson() ?: '{}', true, 512, JSON_THROW_ON_ERROR);
 	}
 
 	/**
@@ -99,7 +101,7 @@ public function setExtraSettings(array $extraSettings) {
 	 *    id: int,
 	 *    formId: int,
 	 *    order: int,
-	 *    type: "dropdown"|"multiple"|"multiple_unique"|"date"|"time"|"short"|"long"|"file",
+	 *    type: FormsQuestionType,
 	 *    isRequired: bool,
 	 *    text: string,
 	 *    name: string,
diff --git a/lib/ResponseDefinitions.php b/lib/ResponseDefinitions.php
index 3c40c777a..79a4946aa 100644
--- a/lib/ResponseDefinitions.php
+++ b/lib/ResponseDefinitions.php
@@ -48,7 +48,7 @@
  *   validationType?: ?string
  * }
  *
- * @psalm-type FormsQuestionType = "dropdown"|"multiple"|"multiple_unique"|"date"|"time"|"short"|"long"|"file"
+ * @psalm-type FormsQuestionType = "dropdown"|"multiple"|"multiple_unique"|"date"|"time"|"short"|"long"|"file"|"datetime"
  *
  * @psalm-type FormsQuestion = array{
  *   id: int,
diff --git a/lib/Service/FormsService.php b/lib/Service/FormsService.php
index 8cf534415..d45e5e9ad 100644
--- a/lib/Service/FormsService.php
+++ b/lib/Service/FormsService.php
@@ -143,6 +143,10 @@ public function getQuestions(int $formId): array {
 					}
 				}
 
+				if (empty($question['extraSettings'])) {
+					$question['extraSettings'] = new \stdClass();
+				}
+
 				$questionList[] = $question;
 			}
 		} catch (DoesNotExistException $e) {
diff --git a/openapi.json b/openapi.json
index dda8f55d0..d9b3c4745 100644
--- a/openapi.json
+++ b/openapi.json
@@ -465,7 +465,8 @@
                     "time",
                     "short",
                     "long",
-                    "file"
+                    "file",
+                    "datetime"
                 ]
             },
             "Share": {
@@ -1347,14 +1348,11 @@
                     }
                 ],
                 "requestBody": {
-                    "required": true,
+                    "required": false,
                     "content": {
                         "application/json": {
                             "schema": {
                                 "type": "object",
-                                "required": [
-                                    "type"
-                                ],
                                 "properties": {
                                     "type": {
                                         "$ref": "#/components/schemas/QuestionType",
diff --git a/tests/Unit/Service/FormsServiceTest.php b/tests/Unit/Service/FormsServiceTest.php
index 349331179..066921bba 100644
--- a/tests/Unit/Service/FormsServiceTest.php
+++ b/tests/Unit/Service/FormsServiceTest.php
@@ -246,7 +246,7 @@ public function dataGetForm() {
 						'order' => 2,
 						'type' => 'short',
 						'isRequired' => true,
-						'extraSettings' => [],
+						'extraSettings' => new \stdClass,
 						'text' => 'Question 2',
 						'description' => '',
 						'name' => 'city',