diff --git a/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitApiController.php b/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitApiController.php
index 742dbc8d..fa5b610e 100644
--- a/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitApiController.php
+++ b/app/Http/Controllers/Apis/Protected/Summit/OAuth2SummitApiController.php
@@ -198,7 +198,7 @@ final class OAuth2SummitApiController extends OAuth2ProtectedController
 
         $current_member = $this->resource_server_context->getCurrentUser();
 
-        if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->isSummitAdmin()) {
+        if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasAllowedSummits()) {
             return $this->error403(['message' => sprintf("Member %s has not permission for any Summit", $current_member->getId())]);
         }
 
@@ -247,7 +247,7 @@ final class OAuth2SummitApiController extends OAuth2ProtectedController
             },
             function ($filter) use ($current_member) {
                 if ($filter instanceof Filter) {
-                    if (!is_null($current_member) && !$current_member->isAdmin() && $current_member->isSummitAdmin()) {
+                    if (!is_null($current_member) && !$current_member->isAdmin() && $current_member->hasAllowedSummits()) {
                         // filter only the ones that we are allowed to see
                         $filter->addFilterCondition
                         (
@@ -294,8 +294,15 @@ final class OAuth2SummitApiController extends OAuth2ProtectedController
             $summit = SummitFinderStrategyFactory::build($this->repository, $this->resource_server_context)->find($summit_id);
             if (is_null($summit)) return $this->error404();
             $current_member = $this->resource_server_context->getCurrentUser();
-            if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasPermissionForOnGroup($summit, IGroup::SummitAdministrators))
+
+            if
+            (
+                !is_null($current_member) &&
+                !$current_member->isAdmin() &&
+                !$current_member->hasPermissionFor($summit)
+            )
                 return $this->error403(['message' => sprintf("Member %s has not permission for this Summit", $current_member->getId())]);
+
             $serializer_type = $this->serializer_type_selector->getSerializerType();
             return $this->ok
             (
@@ -325,7 +332,7 @@ final class OAuth2SummitApiController extends OAuth2ProtectedController
             $summit = $this->repository->getCurrent();
             if (is_null($summit)) return $this->error404();
             $current_member = $this->resource_server_context->getCurrentUser();
-            if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasPermissionForOnGroup($summit, IGroup::SummitAdministrators))
+            if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasPermissionFor($summit))
                 return $this->error403(['message' => sprintf("Member %s has not permission for this Summit", $current_member->getId())]);
             $serializer_type = $this->serializer_type_selector->getSerializerType();
             return $this->ok
@@ -362,7 +369,7 @@ final class OAuth2SummitApiController extends OAuth2ProtectedController
             if (is_null($summit)) return $this->error404();
 
             $current_member = $this->resource_server_context->getCurrentUser();
-            if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasPermissionForOnGroup($summit, IGroup::SummitAdministrators))
+            if (!is_null($current_member) && !$current_member->isAdmin() && !$current_member->hasPermissionFor($summit))
                 return $this->error403(['message' => sprintf("Member %s has not permission for this Summit", $current_member->getId())]);
 
             $serializer_type = $this->serializer_type_selector->getSerializerType();
diff --git a/app/ModelSerializers/Summit/Presentation/SummitSelectedPresentationSerializer.php b/app/ModelSerializers/Summit/Presentation/SummitSelectedPresentationSerializer.php
index dce22dca..9ad66fdc 100644
--- a/app/ModelSerializers/Summit/Presentation/SummitSelectedPresentationSerializer.php
+++ b/app/ModelSerializers/Summit/Presentation/SummitSelectedPresentationSerializer.php
@@ -30,7 +30,8 @@ class SummitSelectedPresentationSerializer extends SilverStripeSerializer
         'type',
         'category_id',
         'presentation_id',
-        'order'
+        'order',
+        'list_id',
     ];
 
     /**
@@ -58,9 +59,10 @@ class SummitSelectedPresentationSerializer extends SilverStripeSerializer
                     {
                         if ($selected_presentation->getPresentationId() > 0) {
                             unset($values['presentation_id']);
-                            $values['presentation_id'] = SerializerRegistry::getInstance()->getSerializer($selected_presentation->getPresentation())->serialize(AbstractSerializer::filterExpandByPrefix($expand, $relation));
+                            $values['presentation'] = SerializerRegistry::getInstance()->getSerializer($selected_presentation->getPresentation())->serialize(AbstractSerializer::filterExpandByPrefix($expand, $relation));
                         }
                     }
+                    break;
                     case 'list':
                     {
                         if ($selected_presentation->getListId() > 0) {
@@ -68,7 +70,7 @@ class SummitSelectedPresentationSerializer extends SilverStripeSerializer
                             $values['list'] = SerializerRegistry::getInstance()->getSerializer($selected_presentation->getList())->serialize(AbstractSerializer::filterExpandByPrefix($expand, $relation));
                         }
                     }
-
+                    break;
                 }
             }
         }
diff --git a/app/Models/Foundation/Main/Member.php b/app/Models/Foundation/Main/Member.php
index 8ed4594c..023bf2a0 100644
--- a/app/Models/Foundation/Main/Member.php
+++ b/app/Models/Foundation/Main/Member.php
@@ -1718,6 +1718,13 @@ SQL;
         return $stmt->fetchAll(\PDO::FETCH_COLUMN);
     }
 
+    /**
+     * @return bool
+     */
+    public function hasAllowedSummits():bool{
+        return count($this->getAllAllowedSummitsIds()) > 0;
+    }
+
     /**
      * @param Summit $summit
      * @return bool
@@ -1757,6 +1764,33 @@ SQL;
         return count($allowed_summits) > 0 && $this->isOnGroup($groupSlug);
     }
 
+    /**
+     * @param Summit $summit
+     * @return bool
+     */
+    public function hasPermissionFor(Summit $summit): bool
+    {
+        $sql = <<<SQL
+SELECT DISTINCT(SummitAdministratorPermissionGroup_Summits.SummitID) 
+FROM SummitAdministratorPermissionGroup_Members 
+INNER JOIN SummitAdministratorPermissionGroup_Summits ON 
+SummitAdministratorPermissionGroup_Summits.SummitAdministratorPermissionGroupID = SummitAdministratorPermissionGroup_Members.SummitAdministratorPermissionGroupID
+WHERE SummitAdministratorPermissionGroup_Members.MemberID = :member_id
+AND 
+SummitAdministratorPermissionGroup_Summits.SummitID = :summit_id
+SQL;
+
+        $stmt = $this->prepareRawSQL($sql);
+        $stmt->execute(
+            [
+                'member_id' => $this->getId(),
+                'summit_id' => $summit->getId()
+            ]
+        );
+        $allowed_summits = $stmt->fetchAll(\PDO::FETCH_COLUMN);
+        return count($allowed_summits) > 0;
+    }
+
     /**
      * @param Summit $summit
      * @return int[]