diff --git a/lib/Dav/GroupMembershipCollection.php b/lib/Dav/GroupMembershipCollection.php
index 73dc4d3e..4de1dd83 100644
--- a/lib/Dav/GroupMembershipCollection.php
+++ b/lib/Dav/GroupMembershipCollection.php
@@ -278,6 +278,10 @@ public function updateDisplayName($displayName) {
 			return 409;
 		}
 
+		$event = new GenericEvent(null, ['oldGroupName' => $this->groupInfo['display_name'],
+			'newGroupName' => $displayName]);
+		$this->dispatcher->dispatch('updateGroupName', $event);
+
 		$result = $this->groupsHandler->updateGroup(
 			$this->groupInfo['group_id'],
 			$this->groupInfo['uri'],
diff --git a/lib/Dav/MembershipNode.php b/lib/Dav/MembershipNode.php
index 7c063627..b3a0611a 100644
--- a/lib/Dav/MembershipNode.php
+++ b/lib/Dav/MembershipNode.php
@@ -28,6 +28,7 @@
 use Sabre\DAV\Exception\PreconditionFailed;
 use OCA\CustomGroups\Dav\Roles;
 use OCA\CustomGroups\Service\MembershipHelper;
+use Symfony\Component\EventDispatcher\GenericEvent;
 
 /**
  * Membership node
@@ -74,6 +75,11 @@ class MembershipNode implements \Sabre\DAV\INode, \Sabre\DAV\IProperties {
 	 */
 	private $name;
 
+	/**
+	 * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
+	 */
+	private $dispatcher;
+
 	/**
 	 * Constructor
 	 *
@@ -94,6 +100,7 @@ public function __construct(
 		$this->memberInfo = $memberInfo;
 		$this->groupInfo = $groupInfo;
 		$this->helper = $helper;
+		$this->dispatcher = \OC::$server->getEventDispatcher();
 	}
 
 	/**
@@ -131,6 +138,9 @@ public function delete() {
 			// only notify when the removal was done by another user
 			$this->helper->notifyUserRemoved($userId, $this->groupInfo, $this->memberInfo);
 		}
+
+		$event = new GenericEvent(null, ['user' => $currentUserId, 'groupName' => $this->groupInfo['display_name']]);
+		$this->dispatcher->dispatch('leaveGroup', $event);
 	}
 
 	/**
diff --git a/lib/Service/MembershipHelper.php b/lib/Service/MembershipHelper.php
index dac19847..c27ccdc2 100644
--- a/lib/Service/MembershipHelper.php
+++ b/lib/Service/MembershipHelper.php
@@ -22,6 +22,7 @@
 namespace OCA\CustomGroups\Service;
 
 use OCA\CustomGroups\CustomGroupsDatabaseHandler;
+use OCA\CustomGroups\Dav\Roles;
 use OCP\IUserSession;
 use OCP\IUserManager;
 use OCP\IGroupManager;
@@ -315,6 +316,13 @@ public function notifyUserRoleChange($targetUserId, array $groupInfo, array $mem
 			->setUser($targetUserId)
 			->setLink($link);
 		$this->notificationManager->notify($notification);
+		if($memberInfo['role'] === Roles::BACKEND_ROLE_MEMBER) {
+			$roleName = "Member";
+		} elseif ($memberInfo['role'] === Roles::BACKEND_ROLE_ADMIN) {
+			$roleName = "Group owner";
+		}
+		$event = new GenericEvent(null, ['user' => $targetUserId, 'groupName' => $groupInfo['display_name'], 'roleNumber' => $memberInfo['role'], 'roleDisaplayName' => $roleName]);
+		$this->dispatcher->dispatch('changeRoleInGroup', $event);
 	}
 
 	/**