diff --git a/lib/FederatedItems/CircleConfig.php b/lib/FederatedItems/CircleConfig.php
index f850e1d3a..8287bd206 100644
--- a/lib/FederatedItems/CircleConfig.php
+++ b/lib/FederatedItems/CircleConfig.php
@@ -40,6 +40,7 @@
 use OCA\Circles\Model\Circle;
 use OCA\Circles\Model\Federated\FederatedEvent;
 use OCA\Circles\Model\Helpers\MemberHelper;
+use OCA\Circles\Service\ConfigService;
 
 /**
  * Class CircleConfig
@@ -55,14 +56,19 @@ class CircleConfig implements
 	/** @var CircleRequest */
 	private $circleRequest;
 
+	/** @var ConfigService */
+	private $configService;
+
 
 	/**
 	 * CircleConfig constructor.
 	 *
 	 * @param CircleRequest $circleRequest
+	 * @param ConfigService $configService
 	 */
-	public function __construct(CircleRequest $circleRequest) {
+	public function __construct(CircleRequest $circleRequest, ConfigService $configService) {
 		$this->circleRequest = $circleRequest;
+		$this->configService = $configService;
 	}
 
 
@@ -133,10 +139,11 @@ public function verify(FederatedEvent $event): void {
 			throw new FederatedItemBadRequestException('Configuration value is not valid');
 		}
 
-		$event->getData()->sInt('config', $config);
-
 		$new = clone $circle;
 		$new->setConfig($config);
+		$this->configService->confirmAllowedCircleTypes($new);
+
+		$event->getData()->sInt('config', $new->getConfig());
 
 		$event->setOutcome($this->serialize($new));
 	}
diff --git a/lib/Service/CircleService.php b/lib/Service/CircleService.php
index 90a5b317c..45a60c385 100644
--- a/lib/Service/CircleService.php
+++ b/lib/Service/CircleService.php
@@ -190,6 +190,7 @@ public function create(
 		}
 
 		$this->confirmName($circle);
+		$this->configService->confirmAllowedCircleTypes($circle);
 
 		$member = new Member();
 		$member->importFromIFederatedUser($owner);
diff --git a/lib/Service/ConfigService.php b/lib/Service/ConfigService.php
index 05626f5cb..0ff4e8dac 100644
--- a/lib/Service/ConfigService.php
+++ b/lib/Service/ConfigService.php
@@ -105,7 +105,8 @@ class ConfigService {
 	public const MEMBERS_LIMIT = 'members_limit';
 	public const ACTIVITY_ON_NEW_CIRCLE = 'creation_activity';
 	public const ALLOWED_TYPES = 'allowed_types';
-
+	public const CIRCLE_TYPES_FORCE = 'circle_types_force';
+	public const CIRCLE_TYPES_BLOCK = 'circle_types_block';
 	public const MIGRATION_BYPASS = 'migration_bypass';
 	public const MIGRATION_22 = 'migration_22';
 	public const MIGRATION_22_1 = 'migration_22_1';
@@ -180,6 +181,8 @@ class ConfigService {
 		self::MEMBERS_LIMIT => '-1',
 		self::ACTIVITY_ON_NEW_CIRCLE => '1',
 		self::ALLOWED_TYPES => Member::ALLOWING_ALL_TYPES,
+		self::CIRCLE_TYPES_FORCE => '0',
+		self::CIRCLE_TYPES_BLOCK => '0',
 
 		self::MIGRATION_BYPASS => '0',
 		self::MIGRATION_22 => '0',
@@ -745,4 +748,19 @@ public function linkToRoute(string $route, array $args): string {
 
 		return $path;
 	}
+
+
+	/**
+	 * Enforce or Block circle's config/type
+	 *
+	 * @param Circle $circle
+	 */
+	public function confirmAllowedCircleTypes(Circle $circle): void {
+		$config = $circle->getConfig();
+		$config |= $this->getAppValueInt(ConfigService::CIRCLE_TYPES_FORCE);
+		$block = $this->getAppValueInt(ConfigService::CIRCLE_TYPES_BLOCK);
+		$config |= $block;
+		$config -= $block;
+		$circle->setConfig($config);
+	}
 }