diff --git a/application/config/stv.php b/application/config/stv.php
index 84b148362..0e18be220 100644
--- a/application/config/stv.php
+++ b/application/config/stv.php
@@ -119,6 +119,7 @@ $config['student_tab_order'] = [
 $config['students_tab_order'] = [
 	'banking',
 	'status',
+	'messages',
 	'groups',
 	'finalexam',
 	'combinePeople',
diff --git a/application/controllers/NeueNachricht.php b/application/controllers/NeueNachricht.php
index 9b61b78ef..b0ff5c554 100644
--- a/application/controllers/NeueNachricht.php
+++ b/application/controllers/NeueNachricht.php
@@ -20,11 +20,18 @@ class NeueNachricht extends Auth_Controller
 	 */
 	public function _remap()
 	{
+		$typeid = $this->input->post('typeid');
+		$ids = ($this->input->post('ids') && strpos($this->input->post('ids'), ',')) 
+			? explode(',', $this->input->post('ids'))
+			: $this->input->post('ids');
+
 		//now working
 		$this->load->view('Nachrichten', [
 			'permissions' => [
 				'assistenz_schreibrechte' => $this->permissionlib->isBerechtigt('assistenz','suid'),
-			]
+			],
+			'ids' => $ids,
+			'typeid' => $typeid
 		]);
 	}
 }
diff --git a/application/controllers/api/frontend/v1/messages/Messages.php b/application/controllers/api/frontend/v1/messages/Messages.php
index 355fe79a4..3035e532d 100644
--- a/application/controllers/api/frontend/v1/messages/Messages.php
+++ b/application/controllers/api/frontend/v1/messages/Messages.php
@@ -1,6 +1,5 @@
 <?php
 
-
 if (!defined('BASEPATH')) exit('No direct script access allowed');
 
 class Messages extends FHCAPI_Controller
@@ -14,6 +13,7 @@ class Messages extends FHCAPI_Controller
 			'getMsgVarsPrestudent' => ['admin:r', 'assistenz:r'],
 			'getMsgVarsLoggedInUser' => ['admin:r', 'assistenz:r'],
 			'getNameOfDefaultRecipient' => ['admin:r', 'assistenz:r'],
+			'getNameOfDefaultRecipients' => ['admin:r', 'assistenz:r'],
 			'sendMessage' => ['admin:r', 'assistenz:r'],
 			'deleteMessage' => ['admin:r', 'assistenz:r'],
 			'getDataVorlage' => ['admin:r', 'assistenz:r'],
@@ -21,6 +21,7 @@ class Messages extends FHCAPI_Controller
 			'getReplyData' => ['admin:r', 'assistenz:r'],
 			'getPersonId' => ['admin:r', 'assistenz:r'],
 			'getUid' => ['admin:r', 'assistenz:r'],
+			'getUids' => ['admin:r', 'assistenz:r'],
 		]);
 
 		//Load Models
@@ -37,7 +38,7 @@ class Messages extends FHCAPI_Controller
 
 		// Load language phrases
 		$this->loadPhrases([
-			'ui'
+			'ui', 'messages'
 		]);
 	}
 
@@ -101,22 +102,49 @@ class Messages extends FHCAPI_Controller
 		$this->terminateWithSuccess($vorlage);
 	}
 
-	public function getMessageVarsPerson($id, $typeId)
+	public function getMessageVarsPerson($typeId)
 	{
-		$person_id = ($typeId == 'mitarbeiter_uid') ? $this->_getPersonId($id, $typeId) : $id;
-		$result = $this->MessageModel->getMsgVarsDataByPersonId($person_id);
-		$data = $this->getDataOrTerminateWithError($result);
+		$ids = $this->input->post('ids');
+		$messageVarsPerson = [];
 
-		$this->terminateWithSuccess($data);
+		foreach ($ids as $id)
+		{
+			$person_id = ($typeId == 'mitarbeiter_uid') ? $this->_getPersonId($id, $typeId) : $id;
+			$result = $this->MessageModel->getMsgVarsDataByPersonId($person_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$messageVarsPerson[] = current($data);
+		}
+
+		$this->terminateWithSuccess($messageVarsPerson);
 	}
 
-	public function getMsgVarsPrestudent($id, $typeId)
+	public function getMsgVarsPrestudent($typeId)
 	{
-		$prestudent_id = ($typeId == 'uid') ? $this->_getPrestudentIdFromUid($id) : $id;
-		$result = $this->MessageModel->getMsgVarsDataByPrestudentId($prestudent_id);
-		$data = $this->getDataOrTerminateWithError($result);
+		$ids = $this->input->post('ids');
+		if(!is_array($ids)) {
+			$ids = array($ids);
+		}
+		$messageVarsPrestudent = [];
 
-		$this->terminateWithSuccess($data);
+		if($typeId == 'uid')
+		{
+			$prestudent_ids = [];
+			foreach ($ids as $id)
+			{
+				$prestudent_ids[] =  $this->_getPrestudentIdFromUid($id);
+			}
+		}
+		else
+			$prestudent_ids = $ids;
+
+		foreach ($prestudent_ids as $prestudent_id)
+		{
+			$result = $this->MessageModel->getMsgVarsDataByPrestudentId($prestudent_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$messageVarsPrestudent[] = current($data);
+		}
+
+		$this->terminateWithSuccess($messageVarsPrestudent);
 	}
 
 	public function getMsgVarsLoggedInUser()
@@ -127,27 +155,45 @@ class Messages extends FHCAPI_Controller
 		$this->terminateWithSuccess($data);
 	}
 
-	public function getNameOfDefaultRecipient($id, $type_id)
+	public function getNameOfDefaultRecipients($type_id)
 	{
-		$id = ($type_id != 'person_id') ? $this->_getPersonId($id, $type_id) : $id;
+		$ids = $this->input->post('ids');
+		if(!is_array($ids)) {
+			$ids = array($ids);
+		}
+		$recipients = [];
+
+		if (empty($ids)) {
+
+			throw new InvalidArgumentException($this->p->t('ui', 'errorMissingOrInvalidParameters', ['parameter'=> 'Id(s)']), self::ERROR_TYPE_GENERAL);
+		}
 
 		$this->load->model('person/Person_model', 'PersonModel');
+		if($type_id != 'person_id'){
+			foreach ($ids as $id)
+			{
+				$person_id =  $this->_getPersonId($id, $type_id);
+				$result = $this->PersonModel->load($person_id);
+				$data = $this->getDataOrTerminateWithError($result);
+				$name = current($data);
+				$recipients[$id] = $name->vorname . " " . $name->nachname;
+			}
+		}
+		else {
+			foreach ($ids as $id) {
+				$result = $this->PersonModel->load($id);
+				$data = $this->getDataOrTerminateWithError($result);
+				$name = current($data);
+				$recipients[$id] = $name->vorname . " " . $name->nachname;
+			}
+		}
 
-		$result = $this->PersonModel->load($id);
-		$data = $this->getDataOrTerminateWithError($result);
-		$name = current($data);
-
-		$this->terminateWithSuccess($name->vorname . " " . $name->nachname );
+		$this->terminateWithSuccess($recipients);
 	}
 
-	public function sendMessage($recipient_id)
+	public function sendMessage($typeId)
 	{
-		//has to be uid
-		//	$this->terminateWithError("uid", $recipient_id, self::ERROR_TYPE_GENERAL);
-
-		//default setting
-		$receiversPersonId = $this->_getPersonId($recipient_id, 'uid');
-
+		$resultReturn = [];
 		$uid = getAuthUID();
 		$this->load->model('person/Benutzer_model', 'BenutzerModel');
 		$result = $this->BenutzerModel->loadWhere(
@@ -185,47 +231,61 @@ class Messages extends FHCAPI_Controller
 		$body = $this->input->post('body');
 		$relationmessage_id = $this->input->post('relationmessage_id');
 
-		$typeId = $this->input->post('type_id');
-		$id = $this->input->post('id');
-
-		if($typeId == 'uid')
+		if (isset($_POST['ids']))
 		{
-			$prestudent_id = $this-> _getPrestudentIdFromUid($id);
-
-			//parseMessagetext for variables Prestudent
-			$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		if($typeId == 'mitarbeiter_uid')
-		{
-			$person_id = $this->_getPersonId($id, $typeId);
-
-			$result = $this->MessagesModel->parseMessageTextPerson($person_id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-			$this->terminateWithError($bodyParsed, self::ERROR_TYPE_GENERAL);
-
-		}
-		elseif($typeId == 'person_id')
-		{
-			$result = $this->MessagesModel->parseMessageTextPerson($id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		elseif($typeId == 'prestudent_id')
-		{
-			$result = $this->MessagesModel->parseMessageTextPrestudent($id, $body);
-			$bodyParsed = $this->getDataOrTerminateWithError($result);
-		}
-		else
-		{
-			$this->terminateWithError("type_id " . $typeId . " not valid", self::ERROR_TYPE_GENERAL);
+			$ids = json_decode($_POST['ids']);
+			unset($_POST['ids']);
+			foreach ($data as $k => $v) {
+				$_POST[$k] = $v;
+			}
 		}
 
-		$result = $this->messagelib->sendMessageUser($receiversPersonId, $subject, $bodyParsed, $benutzer->person_id, null, $relationmessage_id);
+		if (!is_array($ids)) {
+			$ids = [$ids];
+		}
 
-		$this->terminateWithSuccess($result);
+		foreach ($ids as $id)
+		{
+			$receiversPersonId = $typeId == "person_id" ? $id : $this->_getPersonId($id, $typeId);
+
+			if($typeId == 'uid')
+			{
+				$prestudent_id = $this-> _getPrestudentIdFromUid($id);
+
+				$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			if($typeId == 'mitarbeiter_uid')
+			{
+				$person_id = $this->_getPersonId($id, $typeId);
+
+				$result = $this->MessagesModel->parseMessageTextPerson($person_id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			elseif($typeId == 'person_id')
+			{
+				$result = $this->MessagesModel->parseMessageTextPerson($id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			elseif($typeId == 'prestudent_id')
+			{
+				$result = $this->MessagesModel->parseMessageTextPrestudent($id, $body);
+				$bodyParsed = $this->getDataOrTerminateWithError($result);
+			}
+			else
+			{
+				$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+			}
+
+			$result =$this->messagelib->sendMessageUser($receiversPersonId, $subject, $bodyParsed, $benutzer->person_id, null, $relationmessage_id);
+			$data = $this->getDataOrTerminateWithError($result);
+			$resultReturn[] = current($data);
+
+		}
+		$this->terminateWithSuccess($resultReturn);
 	}
 
-	public function getPreviewText($id, $type_id)
+	public function getPreviewText($type_id)
 	{
 		if (isset($_POST['data']))
 		{
@@ -233,39 +293,60 @@ class Messages extends FHCAPI_Controller
 			unset($_POST['data']);
 		}
 		else
-			$this->terminateWithError("Textbody missing ", self::ERROR_TYPE_GENERAL);
+			$this->terminateWithError($this->p->t('messages', 'errorMissingOrInvalidParameters', ['parameter'=> "Textbody"]), self::ERROR_TYPE_GENERAL);
 
-		switch($type_id)
+		if (isset($_POST['ids']))
 		{
-			case 'uid':
-				$prestudent_id = $this->_getPrestudentIdFromUid($id);
-				$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $data);
-				break;
-			case 'prestudent_id':
-				$result = $this->MessagesModel->parseMessageTextPrestudent($id, $data);
-				break;
-			case 'person_id':
-				$result = $this->MessagesModel->parseMessageTextPerson($id, $data);
-				break;
-			case 'mitarbeiter_uid':
-				{
-					$person_id = $this->_getPersonId($id, $type_id);
-					$result = $this->MessagesModel->parseMessageTextPerson($person_id, $data);
-				}
-				break;
-			default:
-				$this->terminateWithError("MESSAGES::getPreviewText logic for type_id " . $type_id . " not defined yet", self::ERROR_TYPE_GENERAL);
-				break;
+			$ids = json_decode($_POST['ids']);
+			if(!is_array($ids))
+			{
+				$ids = array($ids);
+			}
+			unset($_POST['ids']);
 		}
+		else
+			$this->terminateWithError($this->p->t('ui', 'errorMissingOrInvalidParameters', ['parameter'=> 'Id(s)']), self::ERROR_TYPE_GENERAL);
 
-		$bodyParsed = $this->getDataOrTerminateWithError($result);
+		$bodyParsed = [];
+
+		foreach ($ids as $id)
+		{
+			switch($type_id)
+			{
+				case 'uid':
+					$prestudent_id = $this->_getPrestudentIdFromUid($id);
+					$result = $this->MessagesModel->parseMessageTextPrestudent($prestudent_id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'prestudent_id':
+					$result = $this->MessagesModel->parseMessageTextPrestudent($id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'person_id':
+					$result = $this->MessagesModel->parseMessageTextPerson($id, $data);
+					$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					break;
+				case 'mitarbeiter_uid':
+					{
+						$person_id = $this->_getPersonId($id, $type_id);
+						$result = $this->MessagesModel->parseMessageTextPerson($person_id, $data);
+						$bodyParsed[$id] = $this->getDataOrTerminateWithError($result);
+					}
+					break;
+				default:
+					$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $type_id]), self::ERROR_TYPE_GENERAL);
+					break;
+			}
+		}
 
 		$this->terminateWithSuccess($bodyParsed);
 	}
 
 	public function getReplyData($messageId)
 	{
-		//TODO(Manu) validation of messageId: if number
+		if (!is_numeric($messageId)) {
+			$this->terminateWithError($this->p->t('ui', 'error_valueNotNumeric', ['value'=> 'Message ID']), self::ERROR_TYPE_GENERAL);
+		}
 
 		$this->MessageModel->addSelect('public.tbl_msg_message.*');
 		$this->MessageModel->addSelect('r.*');
@@ -288,7 +369,6 @@ class Messages extends FHCAPI_Controller
 		$replyBody = $this->_getReplyBody($body, $dataMessage[0]->nachname, $dataMessage[0]->vorname, $dataMessage[0]->insertamum);
 
 		$dataMessage[0]->replyBody = $replyBody;
-		$dataMessage[0]->rest = "Help Manu";
 		$dataMessage[0]->replySubject = $prefix . $subject;
 
 		$this->terminateWithSuccess($dataMessage);
@@ -336,6 +416,11 @@ class Messages extends FHCAPI_Controller
 				['prestudent_id' => $id]
 			);
 		}
+		else
+		{
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+		}
+
 
 		$data = $this->getDataOrTerminateWithError($result);
 		$person = current($data);
@@ -343,8 +428,11 @@ class Messages extends FHCAPI_Controller
 		$this->terminateWithSuccess($person->person_id);
 	}
 
-	public function getUid($id, $typeId)
+	public function getUids($typeId)
 	{
+		$ids = $this->input->post('ids');
+		$benutzerIds = [];
+
 		if (!$typeId)
 		{
 			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Type ID']), self::ERROR_TYPE_GENERAL);
@@ -352,39 +440,50 @@ class Messages extends FHCAPI_Controller
 		elseif ($typeId == 'person_id')
 		{
 			$this->load->model('person/Benutzer_model', 'BenutzerModel');
-			$result = $this->BenutzerModel->loadWhere(
-				['person_id' => $id]
-			);
+			foreach ($ids as $id)
+			{
+				$result = $this->BenutzerModel->loadWhere(
+					['person_id' => $id]
+				);
+				$data = $this->getDataOrTerminateWithError($result);
+				$benutzer = current($data);
+
+				$benutzerIds[$id] = $benutzer->uid;
+			}
 		}
 		elseif($typeId == 'prestudent_id')
 		{
 			$this->load->model('crm/Prestudent_model', 'PrestudentModel');
-			$result = $this->PrestudentModel->loadWhere(
-				['prestudent_id' => $id]
-			);
+			foreach ($ids as $id)
+			{
+				$result = $this->PrestudentModel->loadWhere(
+					['prestudent_id' => $id]
+				);
 
-			$data = $this->getDataOrTerminateWithError($result);
-			$person = current($data);
-			$person_id = $person->person_id;
+				$data = $this->getDataOrTerminateWithError($result);
+				$person = current($data);
+				$person_id = $person->person_id;
 
-			$this->load->model('person/Benutzer_model', 'BenutzerModel');
-			$result = $this->BenutzerModel->loadWhere(
-				['person_id' => $person_id]
-			);
+				$this->load->model('person/Benutzer_model', 'BenutzerModel');
+				$result = $this->BenutzerModel->loadWhere(
+					['person_id' => $person_id]
+				);
+				$data = $this->getDataOrTerminateWithError($result);
+				$benutzer = current($data);
+
+				$benutzerIds[$id] = $benutzer->uid;
+			}
 		}
 		elseif($typeId == 'uid' || $typeId == 'mitarbeiter_uid')
 		{
-			$this->terminateWithSuccess($id);
+			$this->terminateWithSuccess($ids);
 		}
 		else
 		{
-			$this->terminateWithError("MESSAGES::getUID logic for type_id " . $typeId . " not defined yet", self::ERROR_TYPE_GENERAL);
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
 		}
 
-		$data = $this->getDataOrTerminateWithError($result);
-		$benutzer = current($data);
-
-		$this->terminateWithSuccess($benutzer->uid);
+		$this->terminateWithSuccess($benutzerIds);
 	}
 
 	private function _getPersonId($id, $typeId)
@@ -403,11 +502,16 @@ class Messages extends FHCAPI_Controller
 				['prestudent_id' => $id]
 			);
 		}
+		else
+		{
+			$this->terminateWithError($this->p->t('messages', 'error_missingLogic', ['type'=> $typeId]), self::ERROR_TYPE_GENERAL);
+		}
+
 
 		$data = $this->getDataOrTerminateWithError($result);
 		if (count($data) < 1)
 		{
-			$this->terminateWithError('Error: Messages API no person_id found.');
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Person ID']), self::ERROR_TYPE_GENERAL);
 		}
 		$person = current($data);
 
@@ -416,7 +520,6 @@ class Messages extends FHCAPI_Controller
 
 	private function _getPrestudentIdFromUid($uid)
 	{
-		//	$this->terminateWithError($uid, self::ERROR_TYPE_GENERAL);
 		$this->load->model('crm/Student_model', 'StudentModel');
 		$result = $this->StudentModel->loadWhere(
 			['student_uid' => $uid]
@@ -425,7 +528,7 @@ class Messages extends FHCAPI_Controller
 		$data = $this->getDataOrTerminateWithError($result);
 		if (count($data) < 1)
 		{
-			$this->terminateWithError('Error: Messages API no prestudent_id found.');
+			$this->terminateWithError($this->p->t('ui', 'error_missingId', ['id'=> 'Prestudent ID']), self::ERROR_TYPE_GENERAL);
 		}
 		$student = current($data);
 
diff --git a/application/controllers/api/frontend/v1/stv/Config.php b/application/controllers/api/frontend/v1/stv/Config.php
index 3bf48bf5b..8a2f86b5f 100644
--- a/application/controllers/api/frontend/v1/stv/Config.php
+++ b/application/controllers/api/frontend/v1/stv/Config.php
@@ -362,7 +362,6 @@ class Config extends FHCAPI_Controller
 		$result['messages'] = [
 			'title' => $this->p->t('stv', 'tab_messages'),
 			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Messages.js'),
-			'showOnlyWithUid' => true
 		];
 
 		$result['grades'] = [
@@ -512,6 +511,11 @@ class Config extends FHCAPI_Controller
 			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Kontaktieren.js'),
 		];
 
+		$result['messages'] = [
+			'title' => $this->p->t('stv', 'tab_messages'),
+			'component' => absoluteJsImportUrl('public/js/components/Stv/Studentenverwaltung/Details/Messages.js'),
+		];
+
 		Events::trigger('stv_conf_students', function & () use (&$result) {
 			return $result;
 		});
diff --git a/application/views/Nachrichten.php b/application/views/Nachrichten.php
index cf34bfd53..0d0e8e707 100644
--- a/application/views/Nachrichten.php
+++ b/application/views/Nachrichten.php
@@ -40,6 +40,10 @@ $configArray = [
 		cis-root="<?= CIS_ROOT; ?>"
 		:permissions="<?= htmlspecialchars(json_encode($permissions)); ?>"
 		:config="<?=  htmlspecialchars(json_encode($configArray)); ?>"
+<?php if($ids !== null && $typeid !== null) { ?>
+		:id ="<?= htmlspecialchars(json_encode($ids)); ?>"
+		type-id ="<?= htmlspecialchars($typeid); ?>"
+<?php } ?>
 	>
 	</router-view>
 </div>
diff --git a/public/js/api/factory/messages/messages.js b/public/js/api/factory/messages/messages.js
index c6d4b67b6..b7b21dd8a 100644
--- a/public/js/api/factory/messages/messages.js
+++ b/public/js/api/factory/messages/messages.js
@@ -38,16 +38,18 @@ export default {
 			url: 'api/frontend/v1/messages/messages/getMsgVarsLoggedInUser/'
 		};
 	},
-	getMessageVarsPerson(userParams){
+	getMessageVarsPerson(ids, type_id){
 		return {
 			method: 'post',
-			url: 'api/frontend/v1/messages/messages/getMessageVarsPerson/' + userParams.id + '/' + userParams.type_id
+			url: 'api/frontend/v1/messages/messages/getMessageVarsPerson/' + type_id,
+			params: {ids}
 		};
 	},
-	getMsgVarsPrestudent(userParams){
+	getMsgVarsPrestudent(ids, type_id){
 		return {
 			method: 'post',
-			url: 'api/frontend/v1/messages/messages/getMsgVarsPrestudent/' + userParams.id + '/' + userParams.type_id
+			url: 'api/frontend/v1/messages/messages/getMsgVarsPrestudent/' + type_id,
+			params: {ids}
 		};
 	},
 	getPersonId(params){
@@ -56,28 +58,23 @@ export default {
 			url: 'api/frontend/v1/messages/messages/getPersonId/' + params.id + '/' + params.type_id
 		};
 	},
-	getUid(userParams){
-		return {
-			method: 'get',
-			url: 'api/frontend/v1/messages/messages/getUid/' + userParams.id + '/' + userParams.type_id
-		};
-	},
 	getDataVorlage(vorlage_kurzbz){
 		return {
 			method: 'get',
 			url: 'api/frontend/v1/messages/messages/getDataVorlage/' + vorlage_kurzbz
 		};
 	},
-	getNameOfDefaultRecipient(params){
-		return {
-			method: 'get',
-			url: 'api/frontend/v1/messages/messages/getNameOfDefaultRecipient/' + params.id + '/' + params.type_id
-		};
-	},
-	getPreviewText(userParams, params){
+	getNameOfDefaultRecipients(ids, type_id){
 		return {
 			method: 'post',
-			url: 'api/frontend/v1/messages/messages/getPreviewText/' + userParams.id + '/' + userParams.type_id,
+			url: 'api/frontend/v1/messages/messages/getNameOfDefaultRecipients/' + type_id,
+			params: {ids}
+		};
+	},
+	getPreviewText(type_id, params){
+		return {
+			method: 'post',
+			url: 'api/frontend/v1/messages/messages/getPreviewText/' + type_id,
 			params
 		};
 	},
@@ -87,17 +84,10 @@ export default {
 			url: 'api/frontend/v1/messages/messages/getReplyData/' + messageId
 		};
 	},
-	sendMessageFromModalContext(id, params) {
+	sendMessage(type_id, params) {
 		return {
 			method: 'post',
-			url: 'api/frontend/v1/messages/messages/sendMessage/' + id,
-			params
-		};
-	},
-	sendMessage(id, params) {
-		return {
-			method: 'post',
-			url: 'api/frontend/v1/messages/messages/sendMessage/' + id,
+			url: 'api/frontend/v1/messages/messages/sendMessage/' + type_id,
 			params
 		};
 	},
diff --git a/public/js/apps/Nachrichten.js b/public/js/apps/Nachrichten.js
index 84b9ddee5..ab9baf084 100644
--- a/public/js/apps/Nachrichten.js
+++ b/public/js/apps/Nachrichten.js
@@ -1,14 +1,15 @@
 import NewMessage from "../components/Messages/Details/NewMessage/NewDiv.js";
 
-import Phrasen from "../plugin/Phrasen.js";
+import Phrasen from "../plugins/Phrasen.js";
 
 const ciPath = FHC_JS_DATA_STORAGE_OBJECT.app_root.replace(/(https:|)(^|\/\/)(.*?\/)/g, '') + FHC_JS_DATA_STORAGE_OBJECT.ci_router;
 
 const router = VueRouter.createRouter({
 	history: VueRouter.createWebHistory(),
 	routes: [
-		{ path: `/${ciPath}/NeueNachricht/:id/:typeId`, component: NewMessage },
-		{ path: `/${ciPath}/NeueNachricht/:id/:typeId/:messageId`, component: NewMessage },
+		{ path: `/${ciPath}/NeueNachricht`, component: NewMessage, props: true },
+		{ path: `/${ciPath}/NeueNachricht/:id/:typeId`, component: NewMessage, props: true },
+		{ path: `/${ciPath}/NeueNachricht/:id/:typeId/:messageId`, component: NewMessage, props: true },
 	]
 });
 
diff --git a/public/js/components/Messages/Details/NewMessage/Modal.js b/public/js/components/Messages/Details/NewMessage/Modal.js
index ce9235617..47187de89 100644
--- a/public/js/components/Messages/Details/NewMessage/Modal.js
+++ b/public/js/components/Messages/Details/NewMessage/Modal.js
@@ -4,6 +4,8 @@ import FormInput from '../../../Form/Input.js';
 import ListBox from "../../../../../../index.ci.php/public/js/components/primevue/listbox/listbox.esm.min.js";
 import DropdownComponent from "../../../VorlagenDropdown/VorlagenDropdown.js";
 
+import ApiMessages from '../../../../api/factory/messages/messages.js';
+
 export default {
 	name: "ModalNewMessages",
 	components: {
@@ -14,13 +16,9 @@ export default {
 		ListBox
 	},
 	props: {
-		endpoint: {
-			type: Object,
-			required: true
-		},
 		typeId: String,
 		id: {
-			type: [Number, String],
+			type: Array,
 			required: true
 		},
 		messageId: {
@@ -43,6 +41,8 @@ export default {
 			vorlagen: [],
 			recipientsArray: [],
 			defaultRecipient: null,
+			defaultRecipients: [],
+			defaultRecipientString: null,
 			editor: null,
 			fieldsUser: [],
 			fieldsPerson: [],
@@ -56,7 +56,6 @@ export default {
 			previewText: null,
 			previewBody: "",
 			replyData: null,
-			uid: null,
 		}
 	},
 	methods: {
@@ -111,34 +110,28 @@ export default {
 		},
 		sendMessage() {
 			const data = new FormData();
-			const params = {
-				id: this.id,
-				type_id: this.typeId
-			};
-			const merged = {
-				...this.formData,
-				...params
-			};
-			data.append('data', JSON.stringify(merged));
+			data.append('data', JSON.stringify(this.formData));
+			data.append('ids', JSON.stringify(this.id));
 
 			return this.$refs.formMessage
-				.call(this.endpoint.sendMessageFromModalContext(this.uid, data))
+				.call(ApiMessages.sendMessage(this.typeId, data))
 				.then(response => {
 					this.$fhcAlert.alertSuccess(this.$p.t('ui', 'successSent'));
 					this.hideModal('modalNewMessage');
 					this.resetForm();
 				}).catch(this.$fhcAlert.handleSystemError)
 				.finally(() => {
-						//this.resetForm();
-						//closeModal
-						//closewindwo
+
+					//just emit if no multitasking
+					if(this.id.length == 1){
 						this.$emit('reloadTable');
+						}
 					}
 				);
 		},
 		getDataVorlage(vorlage_kurzbz){
 			return this.$api
-				.call(this.endpoint.getDataVorlage(vorlage_kurzbz))
+				.call(ApiMessages.getDataVorlage(vorlage_kurzbz))
 				.then(response => {
 					this.formData.body = response.data.text;
 					this.formData.subject = response.data.subject;
@@ -146,17 +139,17 @@ export default {
 		},
 		getPreviewText(){
 			const data = new FormData();
-
 			data.append('data', JSON.stringify(this.formData.body));
+			data.append('ids', JSON.stringify(this.id));
+
 			return this.$api
-				.call(this.endpoint.getPreviewText({
-					id: this.id,
-					type_id: this.typeId}, data))
+				.call(ApiMessages.getPreviewText(
+					this.typeId, data))
 				.then(response => {
-					this.previewText = response.data;
+					const previews = response.data;
+					this.previewText = previews[this.defaultRecipient];
 				}).catch(this.$fhcAlert.handleSystemError)
 				.finally(() => {
-					//this.resetForm();
 					//closeModal
 					//closewindwo
 				});
@@ -171,7 +164,7 @@ export default {
 				this.editor.save();
 
 			} else {
-				console.error("Editor instance is not available.");
+				console.error(this.$p.t('messages', 'errorEditorNotAvailable'));
 			}
 		},
 		resetForm(){
@@ -180,6 +173,7 @@ export default {
 				body: null,
 				subject: null,
 			};
+
 			this.$emit('resetMessageId');
 
 			if (this.editor) {
@@ -201,18 +195,6 @@ export default {
 				this.previewBody = this.previewText;
 			});
 		},
-		getUid(id, typeId){
-			const params = {
-				id: id,
-				type_id: typeId
-			};
-			this.$api
-				.call(this.endpoint.getUid(params))
-				.then(result => {
-					this.uid = result.data;
-				})
-				.catch(this.$fhcAlert.handleSystemError);
-		},
 		show(){
 			this.$refs.modalNewMessage.show();
 		},
@@ -245,7 +227,7 @@ export default {
 				if (!newMessageId) return;
 
 				try {
-					const result = await this.$api.call(this.endpoint.getReplyData(newMessageId));
+					const result = await this.$api.call(ApiMessages.getReplyData(newMessageId));
 					this.replyData = result.data;
 
 					if (this.replyData.length > 0) {
@@ -260,15 +242,9 @@ export default {
 		}
 	},
 	created(){
-		this.getUid(this.id, this.typeId);
-
 		if(this.typeId == 'person_id' || this.typeId == 'mitarbeiter_uid'){
-			const params = {
-				id: this.id,
-				type_id: this.typeId
-			};
 			this.$api
-				.call(this.endpoint.getMessageVarsPerson(params))
+				.call(ApiMessages.getMessageVarsPerson(this.id, this.typeId))
 				.then(result => {
 					this.fieldsPerson = result.data;
 					const person = this.fieldsPerson[0];
@@ -281,12 +257,8 @@ export default {
 		}
 
 		if(this.typeId == 'prestudent_id' || this.typeId == 'uid'){
-			const params = {
-				id: this.id,
-				type_id: this.typeId
-			};
 			this.$api
-				.call(this.endpoint.getMsgVarsPrestudent(params))
+				.call(ApiMessages.getMsgVarsPrestudent(this.id, this.typeId))
 				.then(result => {
 					this.fieldsPrestudent = result.data;
 					const prestudent = this.fieldsPrestudent[0];
@@ -299,7 +271,7 @@ export default {
 		}
 
 		this.$api
-			.call(this.endpoint.getMsgVarsLoggedInUser())
+			.call(ApiMessages.getMsgVarsLoggedInUser())
 			.then(result => {
 				this.fieldsUser = result.data;
 				const user = this.fieldsUser;
@@ -311,21 +283,18 @@ export default {
 			.catch(this.$fhcAlert.handleSystemError);
 
 		this.$api
-			.call(this.endpoint.getNameOfDefaultRecipient({
-				id: this.id,
-				type_id: this.typeId}))
+			.call(ApiMessages.getNameOfDefaultRecipients(this.id, this.typeId))
 			.then(result => {
-				this.defaultRecipient = result.data;
-				this.recipientsArray.push({
-					'uid': this.uid,
-					'details': this.defaultRecipient});
+				this.defaultRecipients = result.data;
+				this.defaultRecipientString =  Object.values(this.defaultRecipients).join("; ");
+
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 
 		//case of reply
 		if(this.messageId) {
 			this.$api
-				.call(this.endpoint.getReplyData(this.messageId))
+				.call(ApiMessages.getReplyData(this.messageId))
 				.then(result => {
 					this.replyData = result.data;
 					this.formData.subject = this.replyData[0].replySubject;
@@ -381,7 +350,7 @@ export default {
 									type="text"
 									name="recipient"
 									:label="$p.t('messages/recipient')"
-									v-model="defaultRecipient"
+									v-model="defaultRecipientString"
 									disabled
 								>
 								</form-input>
@@ -502,17 +471,17 @@ export default {
 								>
 									<option :value="null">{{ $p.t('messages', 'recipient') }}...</option>
 									<option
-										v-for="recipient in recipientsArray"
-										:key="recipient.uid"
-										:value="recipient.uid" 
-										>{{recipient.details}}
+										v-for="(name, id) in defaultRecipients"
+										  :key="id" 
+										  :value="Number(id)"
+										> {{name}}
 									</option>
 								</form-input>
 							</div>
 
 							<div class="col-md-2 mt-4">
 								<br>
-								<button type="button" class="btn btn-secondary" @click="showPreview()">{{ $p.t('ui', 'btnAktualisieren') }}</button>
+								<button type="button" class="btn btn-secondary" @click="showPreview(defaultRecipient)">{{ $p.t('ui', 'btnAktualisieren') }}</button>
 							</div>
 						</form-form>
 
diff --git a/public/js/components/Messages/Details/NewMessage/NewDiv.js b/public/js/components/Messages/Details/NewMessage/NewDiv.js
index 24674fd3f..b0c52f0f7 100644
--- a/public/js/components/Messages/Details/NewMessage/NewDiv.js
+++ b/public/js/components/Messages/Details/NewMessage/NewDiv.js
@@ -2,6 +2,7 @@ import FormForm from '../../../Form/Form.js';
 import FormInput from '../../../Form/Input.js';
 import ListBox from "../../../../../../index.ci.php/public/js/components/primevue/listbox/listbox.esm.min.js";
 import DropdownComponent from '../../../VorlagenDropdown/VorlagenDropdown.js';
+import ApiMessages from "../../../../api/factory/messages/messages.js"; //props not working with route
 
 export default {
 	name: "ComponentNewMessages",
@@ -12,33 +13,17 @@ export default {
 		DropdownComponent,
 	},
 	props: {
-		endpoint: {
-			type: Object,
-			required: true
-		},
 		openMode: String,
-		tempTypeId: String,
-		tempId: {
-			type: [Number, String],
+		typeId: String,
+		id: {
+			type: Array,
 			required: false
 		},
-		tempMessageId: {
+		messageId: {
 			type: Number,
 			required: false,
 		}
 	},
-	computed: {
-		//params with routes for new tab and new window AND props for inSamePage
-		id(){
-			return this.$props.tempId || this.$route.params.id;
-		},
-		typeId(){
-			return this.$props.tempTypeId || this.$route.params.typeId;
-		},
-		messageId(){
-			return this.$props.tempMessageId ||this.$route.params.messageId;
-		}
-	},
 	data(){
 		return {
 			formData: {
@@ -53,6 +38,8 @@ export default {
 			vorlagen: [],
 			recipientsArray: [],
 			defaultRecipient: null,
+			defaultRecipients: [],
+			defaultRecipientString: null,
 			editor: null,
 			isVisible: false,
 			fieldsUser: [],
@@ -67,8 +54,7 @@ export default {
 			previewText: null,
 			previewBody: "",
 			replyData: null,
-			uid: null,
-			messageSent: false
+			messageSent: false,
 		}
 	},
 	methods: {
@@ -106,19 +92,11 @@ export default {
 		},
 		sendMessage() {
 			const data = new FormData();
+			data.append('data', JSON.stringify(this.formData));
+			data.append('ids', JSON.stringify(this.id));
 
-			const params = {
-				id: this.id,
-				type_id: this.typeId
-			};
-
-			const merged = {
-				...this.formData,
-				...params
-			};
-			data.append('data', JSON.stringify(merged));
 			return this.$api
-				.call(this.endpoint.sendMessage(this.uid, data))
+				.call(ApiMessages.sendMessage(this.typeId, data))
 				.then(response => {
 					this.$fhcAlert.alertSuccess(this.$p.t('ui', 'successSent'));
 					this.hideTemplate();
@@ -126,11 +104,7 @@ export default {
 					this.messageSent = true;
 				}).catch(this.$fhcAlert.handleSystemError)
 				.finally(() => {
-					//TODO(Manu) hier route definieren für openmode in Tab, Page?
-					// ist kein child sondern mit route aufgerufen
-					//würde allerdings neues fenster aktualisiert öffnen, altes bleibt ohne reload gleich
-					//Reload vorheriges tab???
-					if(this.openMode == "inSamePage"){
+					if(this.openMode == "inSamePage" && this.id.length == 1 ){
 						this.$emit('reloadTable');
 						}
 					}
@@ -138,25 +112,29 @@ export default {
 		},
 		getDataVorlage(vorlage_kurzbz){
 			return this.$api
-				.call(this.endpoint.getDataVorlage(vorlage_kurzbz))
+				.call(ApiMessages.getDataVorlage(vorlage_kurzbz))
 				.then(response => {
 					this.formData.body = response.data.text;
 					this.formData.subject = response.data.subject;
 				}).catch(this.$fhcAlert.handleSystemError);
 		},
-		getPreviewText(id, typeId){
+		getPreviewText(){
+			console.log("subj" + this.formData.subject);
 			const data = new FormData();
 
 			data.append('data', JSON.stringify(this.formData.body));
+			data.append('ids', JSON.stringify(this.id));
+
+			console.log("subj" + this.formData.subject);
+
 			return this.$api
-				.call(this.endpoint.getPreviewText({
-					id: this.id,
-					type_id: this.typeId}, data))
+				.call(ApiMessages.getPreviewText(
+					this.typeId, data))
 				.then(response => {
-					this.previewText = response.data;
+					const previews = response.data;
+					this.previewText = previews[this.defaultRecipient];
 				}).catch(this.$fhcAlert.handleSystemError)
 				.finally(() => {
-					//this.resetForm();
 				});
 		},
 		insertVariable(selectedItem){
@@ -169,7 +147,7 @@ export default {
 				this.editor.save();
 
 			} else {
-				console.error("Editor instance is not available.");
+				console.error(this.$p.t('messages', 'errorEditorNotAvailable'));
 			}
 		},
 		resetForm(){
@@ -177,11 +155,13 @@ export default {
 				vorlage_kurzbz: null,
 				body: null,
 				subject: null,
+				recipient: null,
+				selectedValue: null
 			};
 			if (this.editor) {
 				this.editor.setContent("");
 			}
-			this.$refs.dropdownComp.setValue(null);
+		//	this.$refs.dropdownComp.setValue(null);
 
 			this.previewBody = null;
 
@@ -199,23 +179,25 @@ export default {
 				this.isVisible = false;
 		},
 		showTemplate(){
-			if (this.openMode == "inSamePage")
+			if (this.openMode == "inSamePage") {
 				this.isVisible = true;
+				//to enable send newMessage after sentMessage
+				this.messageSent = false;
+			}
 		},
-		showPreview(id, typeId){
-			this.getPreviewText(id, typeId).then(() => {
+		showPreview(){
+			this.getPreviewText().then(() => {
 				this.previewBody = this.previewText;
 			});
 		},
-		getUid(id, typeId){
-			const params = {
-				id: id,
-				type_id: typeId
-			};
+		loadReplyData(messageId){
 			this.$api
-				.call(this.endpoint.getUid(params))
+				.call(ApiMessages.getReplyData(messageId))
 				.then(result => {
-					this.uid = result.data;
+					this.replyData = result.data;
+					this.formData.subject = this.replyData[0].replySubject;
+					this.formData.body = this.replyData[0].replyBody;
+					this.formData.relationmessage_id = messageId;
 				})
 				.catch(this.$fhcAlert.handleSystemError);
 		}
@@ -242,38 +224,43 @@ export default {
 		},
 	},
 	created(){
-		this.getUid(this.id, this.typeId);
+		const missingparamsmsgs = [];
+		if(!this.typeId)
+		{
+			missingparamsmsgs.push(this.$p.t('messages', 'errorMissingOrInvalidParameterRecipientTypeId'));
+		}
 
-		if (['person_id', 'mitarbeiter_uid'].includes(this.typeId)){
-				const params = {
-					id: this.id,
-					type_id: this.typeId
-				};
+		if(!this.id || this.id.length < 1)
+		{
+			missingparamsmsgs.push(this.$p.t('messages', 'errorMissingOrInvalidParameterRecipientIds'));
+		}
 
-				this.$api
-				.call(this.endpoint.getMessageVarsPerson(params))
-					.then(result => {
-						this.fieldsPerson = result.data;
-						const person = this.fieldsPerson[0];
-						this.itemsPerson = Object.entries(person).map(([key, value]) => ({
-							label: key.toLowerCase(),
-							value: '{' + key.toLowerCase() + '}'
-						}));
-					})
-					.catch(this.$fhcAlert.handleSystemError);
-			}
+		if(missingparamsmsgs.length > 0)
+		{
+			this.$fhcAlert.alertMultiple(missingparamsmsgs, 'warn', 'Warning', true);
+			return;
+		}
 
-		if (['prestudent_id', 'uid'].includes(this.typeId)){
-				const params = {
-				id: this.id,
-				type_id: this.typeId
-			};
+		if(this.typeId == 'person_id' || this.typeId == 'mitarbeiter_uid'){
 			this.$api
-				.call(this.endpoint.getMsgVarsPrestudent(params))
+				.call(ApiMessages.getMessageVarsPerson(this.id, this.typeId))
+				.then(result => {
+					this.fieldsPerson = result.data;
+					const person = this.fieldsPerson[0];
+					this.itemsPerson = Object.entries(person).map(([key, value]) => ({
+						label: key.toLowerCase(),
+						value: '{' + key.toLowerCase() + '}'
+					}));
+				})
+				.catch(this.$fhcAlert.handleSystemError);
+		}
+
+		if(this.typeId == 'prestudent_id' || this.typeId == 'uid'){
+			this.$api
+				.call(ApiMessages.getMsgVarsPrestudent(this.id, this.typeId))
 				.then(result => {
 					this.fieldsPrestudent = result.data;
 					const prestudent = this.fieldsPrestudent[0];
-
 					this.itemsPrestudent = Object.entries(prestudent).map(([key, value]) => ({
 						label: key.toLowerCase(),
 						value: '{' + key.toLowerCase() + '}'
@@ -283,7 +270,7 @@ export default {
 		}
 
 		this.$api
-			.call(this.endpoint.getMsgVarsLoggedInUser())
+			.call(ApiMessages.getMsgVarsLoggedInUser())
 			.then(result => {
 				this.fieldsUser = result.data;
 				const user = this.fieldsUser;
@@ -295,28 +282,26 @@ export default {
 			.catch(this.$fhcAlert.handleSystemError);
 
 		this.$api
-			.call(this.endpoint.getNameOfDefaultRecipient({
-				id: this.id,
-				type_id: this.typeId}))
+			.call(ApiMessages.getNameOfDefaultRecipients(this.id, this.typeId))
 			.then(result => {
-				this.defaultRecipient = result.data;
-				this.recipientsArray.push({
-					'uid': this.uid,
-					'details': this.defaultRecipient});
+				this.defaultRecipients = result.data;
+				this.defaultRecipientString = Object.values(this.defaultRecipients).join("; ");
+
 			})
 			.catch(this.$fhcAlert.handleSystemError);
 
 		//case of reply
 		if(this.messageId != null) {
-			this.$api
-				.call(this.endpoint.getReplyData(this.messageId))
+			this.loadReplyData(this.messageId);
+/*			this.$api
+				.call(ApiMessages.getReplyData(this.messageId))
 				.then(result => {
 					this.replyData = result.data;
 					this.formData.subject = this.replyData[0].replySubject;
 					this.formData.body = this.replyData[0].replyBody;
 					this.formData.relationmessage_id = this.messageId;
 				})
-				.catch(this.$fhcAlert.handleSystemError);
+				.catch(this.$fhcAlert.handleSystemError);*/
 		}
 
 	},
@@ -330,7 +315,7 @@ export default {
 
 	<div class="messages-detail-newmessage-newdiv">
 			<!--new page-->
-			<div v-if="!messageSent" class="overflow-auto m-3">
+			<div v-if="!messageSent" ref="divNewMessage" class="overflow-auto m-3">
 				<h4>{{ $p.t('messages', 'neueNachricht') }}</h4>
 
 				<div class="row">
@@ -343,7 +328,7 @@ export default {
 									type="text"
 									name="recipient"
 									:label="$p.t('messages/recipient')"
-									v-model="defaultRecipient"
+									v-model="defaultRecipientString"
 									disabled
 								>
 								</form-input>
@@ -472,18 +457,18 @@ export default {
 									v-model="defaultRecipient"
 								>
 									<option :value="null">{{ $p.t('messages', 'recipient') }}...</option>
-									<option 
-										v-for="recipient in recipientsArray"
-										:key="recipient.uid" 
-										:value="recipient.uid" 
-										>{{recipient.details}}
+									<option
+										v-for="(name, id) in defaultRecipients"
+										  :key="id" 
+										  :value="Number(id)"
+										> {{name}}
 									</option>
 								</form-input>
 							</div>
 
 							<div class="col-md-2 mt-4">
 								<br>
-								<button type="button" class="btn btn-secondary" @click="showPreview(id, typeId)">{{ $p.t('ui', 'btnAktualisieren') }}</button>
+								<button type="button" class="btn btn-secondary" @click="showPreview(defaultRecipient)">{{ $p.t('ui', 'btnAktualisieren') }}</button>
 							</div>
 						</form-form>
 
diff --git a/public/js/components/Messages/Details/TableMessages.js b/public/js/components/Messages/Details/TableMessages.js
index 3b3ca39b5..a55ddec63 100644
--- a/public/js/components/Messages/Details/TableMessages.js
+++ b/public/js/components/Messages/Details/TableMessages.js
@@ -1,6 +1,8 @@
 import {CoreFilterCmpt} from "../../filter/Filter.js";
 import FormForm from '../../Form/Form.js';
 
+import ApiMessages from "../../../api/factory/messages/messages.js"
+
 export default {
 	name: "TableMessages",
 	components: {
@@ -13,13 +15,9 @@ export default {
 		},
 	},
 	props: {
-		endpoint: {
-			type: Object,
-			required: true
-		},
 		typeId: String,
 		id: {
-			type: [Number, String],
+			type: Array,
 			required: true
 		},
 		messageLayout: String,
@@ -38,12 +36,13 @@ export default {
 				},
 				ajaxResponse: (url, params, response) => this.buildTreemap(response),
 				columns: [
-					{title: "subject", field: "subject"},
-					{title: "body", field: "body", formatter: "html", visible: false},
-					{title: "message_id", field: "message_id", visible: false},
+					{title: "subject", field: "subject", headerFilter: true},
+					{title: "body", field: "body", formatter: "html", visible: false, headerFilter: true},
+					{title: "message_id", field: "message_id", visible: false, headerFilter: true},
 					{
 						title: "Datum",
 						field: "insertamum",
+						headerFilter: true,
 						formatter: function (cell) {
 							const dateStr = cell.getValue();
 							const date = new Date(dateStr); // Convert to Date object
@@ -55,16 +54,28 @@ export default {
 								minute: "2-digit",
 								hour12: false
 							});
+						},
+						headerFilterFunc(headerValue, rowValue) {
+							const matches = headerValue.match(/^(([0-9]{2})\.)?([0-9]{2})\.([0-9]{4})?$/);
+							let comparestr = headerValue;
+							if(matches !== null) {
+								const year = (matches[4] !== undefined) ? matches[4] : '';
+								const month = matches[3];
+								const day = (matches[2] !== undefined) ? matches[2] : '';
+								comparestr = year + '-' + month + '-' + day;
+							}
+							return rowValue.match(comparestr);
 						}
 					},
-					{title: "sender", field: "sender"},
-					{title: "recipient", field: "recipient"},
-					{title: "senderId", field: "sender_id"},
-					{title: "recipientId", field: "recipient_id"},
-					{title: "Relationmessage ID", field: "relationmessage_id"},
+					{title: "sender", field: "sender", headerFilter: true},
+					{title: "recipient", field: "recipient", headerFilter: true},
+					{title: "senderId", field: "sender_id", headerFilter: true},
+					{title: "recipientId", field: "recipient_id", headerFilter: true},
+					{title: "Relationmessage ID", field: "relationmessage_id", headerFilter: true},
 					{
 						title: "Status",
 						field: "status",
+						headerFilter: true,
 						formatterParams: [
 							"unread",
 							"read",
@@ -73,11 +84,12 @@ export default {
 						],
 						formatter: (cell, formatterParams) => {
 							return formatterParams[cell.getValue()];
-						}
+						},
 					},
 					{
 						title: "letzte Änderung",
 						field: "statusdatum",
+						headerFilter: true,
 						formatter: function (cell) {
 							const dateStr = cell.getValue();
 							const date = new Date(dateStr); // Convert to Date object
@@ -89,6 +101,17 @@ export default {
 								minute: "2-digit",
 								hour12: false
 							});
+						},
+						headerFilterFunc(headerValue, rowValue) {
+							const matches = headerValue.match(/^(([0-9]{2})\.)?([0-9]{2})\.([0-9]{4})?$/);
+							let comparestr = headerValue;
+							if(matches !== null) {
+								const year = (matches[4] !== undefined) ? matches[4] : '';
+								const month = matches[3];
+								const day = (matches[2] !== undefined) ? matches[2] : '';
+								comparestr = year + '-' + month + '-' + day;
+							}
+							return rowValue.match(comparestr);
 						}
 					},
 					{
@@ -256,7 +279,7 @@ export default {
 		},
 		deleteMessage(message_id){
 			return this.$api
-				.call(this.endpoint.deleteMessage(message_id))
+				.call(ApiMessages.deleteMessage(message_id))
 				.then(response => {
 					this.$fhcAlert.alertSuccess(this.$p.t('ui', 'successDelete'));
 				}).catch(this.$fhcAlert.handleSystemError)
@@ -322,7 +345,7 @@ export default {
 		},
 		loadAjaxCall(url, config, params){
 			return this.$api.call(
-				this.endpoint.getMessages(params)
+				ApiMessages.getMessages(params)
 			);
 		}
 	},
@@ -347,13 +370,13 @@ export default {
 		});*/
 	},
 	created(){
-		if(this.typeId != 'person_id') {
+		if(this.typeId != 'person_id' && Array.isArray(this.id) && this.id.length === 1) {
 			const params = {
 				id: this.id,
 				type_id: this.typeId
 			};
 			this.$api
-				.call(this.endpoint.getPersonId(params))
+				.call(ApiMessages.getPersonId(params))
 				.then(result => {
 					this.personId = result.data;
 				})
diff --git a/public/js/components/Messages/Messages.js b/public/js/components/Messages/Messages.js
index 176c05b6b..1f9afcb9e 100644
--- a/public/js/components/Messages/Messages.js
+++ b/public/js/components/Messages/Messages.js
@@ -14,10 +14,6 @@ export default {
 		}
 	},
 	props: {
-		endpoint: {
-			type: Object,
-			required: true
-		},
 		typeId: {
 			type: String,
 			required: true,
@@ -31,7 +27,7 @@ export default {
 			}
 		},
 		id: {
-			type: [Number, String],
+			type: Array,
 			required: true
 		},
 		showTable: Boolean,
@@ -65,6 +61,9 @@ export default {
 		}
 	},
 	methods: {
+		getControllerUrl() {
+			return FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router + '/NeueNachricht';
+		},
 		reloadTable(){
 			this.$refs.templateTableMessage.reload();
 		},
@@ -77,44 +76,65 @@ export default {
 				this.openInNewTab(id, typeId, messageId);
 			}
 			else if (this.openMode == "modal"){
+				if(!messageId)
+					this.$refs.modalMsg.resetForm();
 				this.$refs.modalMsg.show();
 			}
 			else if (this.openMode == "inSamePage"){
+				console.log("in same Page");
 				this.isVisibleDiv = true;
+				if(messageId)
+					this.$refs.templateNewDivMessage.loadReplyData(messageId);
+				else
+					this.$refs.templateNewDivMessage.resetForm();
+
+				this.$refs.templateNewDivMessage.showTemplate();
 			}
 			else
 				console.log("no valid openMode");
 		},
-		openInNewTab(id, typeId, messageId= null){
+		openInNewTab(id, typeId, messageId=null){
+			if(id.length > 1)
+			{
+				this.$refs['newMsgForm'].submit();
+				return;
+			}
 
-			let path = FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router;
+			let path = this.getControllerUrl();
 
 			if (messageId){
-				path += "/NeueNachricht/" + id + "/" + typeId + "/" + messageId;
+				path += "/" + encodeURIComponent(id) + "/" + encodeURIComponent(typeId) + "/" + encodeURIComponent(messageId);
 			}
 
 			else {
-				path += "/NeueNachricht/" + id + "/" + typeId;
+				path += "/" + encodeURIComponent(id) + "/" + encodeURIComponent(typeId);
 			}
 
 			const newTab = window.open(path, "_blank");
 		},
 		openInNewWindow(id, typeId, messageId){
-			let path = FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router;
-
-			if (messageId){
-				path += "/NeueNachricht/" + id + "/" + typeId + "/" + messageId;
-			}
-
-			else {
-				path += "/NeueNachricht/" + id + "/" + typeId;
-			}
-
 			const width = Math.round(window.innerWidth * 0.75);
 			const height = Math.round(window.innerHeight * 0.75);
 			const left = Math.round((window.innerWidth - width) / 2);
 			const top = Math.round((window.innerHeight - height) / 2);
 
+				if(id.length > 1)
+			{
+				const newWindow = window.open('', "NewMsgWindow", `width=${width},height=${height},left=${left},top=${top}`);
+				this.$refs['newMsgForm'].submit();
+				return;
+			}
+
+			let path = this.getControllerUrl();
+
+			if (messageId){
+				path += "/" + encodeURIComponent(id) + "/" + encodeURIComponent(typeId) + "/" + encodeURIComponent(messageId);
+			}
+
+			else {
+				path += "/" + encodeURIComponent(id) + "/" + encodeURIComponent(typeId);
+			}
+
 			const newWindow = window.open(path, "_blank", `width=${width},height=${height},left=${left},top=${top}`);
 		},
 		resetMessageId(){
@@ -124,13 +144,21 @@ export default {
 	},
 	template: `
 	<div class="core-messages h-100 pb-3">
+		<!-- TODO(bh) set target _self for debugging post but _blank for newTab -->
+		<form ref="newMsgForm"
+			method="post"
+			:action="getControllerUrl()"
+			:target="(openMode === 'window') ? 'NewMsgWindow' : '_blank'"
+		>
+			<input type="hidden" name="typeid" :value="typeId">
+			<input type="hidden" name="ids" :value="id">
+		</form>
 
 		<message-modal
 			ref="modalMsg"
 			:type-id="typeId"
 			:id="id"
 			:message-id="messageId"
-			:endpoint="endpoint"
 			:openMode="openMode"
 			@reloadTable="reloadTable"
 			@resetMessageId="resetMessageId"
@@ -138,26 +166,23 @@ export default {
 		</message-modal>
 		
 		<!--in same page-->
-		<div v-if="isVisibleDiv" class="overflow-auto m-3" style="max-height: 500px; border: 1px solid #ccc;">
+		<div v-show="isVisibleDiv" class="overflow-auto m-3" style="max-height: 500px; border: 1px solid #ccc;">
 			<form-only
-				ref="templateNewMessage"
-				:temp-type-id="typeId"
-				:temp-id="id"
-				:temp-message-id="messageId"
-				:endpoint="endpoint"
+				ref="templateNewDivMessage"
+				:type-id="typeId"
+				:id="id"
+				:message-id="messageId"
 				:openMode="openMode"
 				@reloadTable="reloadTable"
 			>
 			</form-only>
 		</div>
-
-		
-		<div v-if="showTable">
+	
+		<div v-if="showTable && id.length==1">
 			<table-messages
 				ref="templateTableMessage"
 				:type-id="typeId"
 				:id="id"
-				:endpoint="endpoint"
 				:messageLayout="messageLayout"
 				:openMode="openMode"
 				@newMessage="handleMessage"		
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Messages.js b/public/js/components/Stv/Studentenverwaltung/Details/Messages.js
index 59650eaab..8bbb596d6 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Messages.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Messages.js
@@ -1,5 +1,5 @@
 import CoreMessages from "../../../Messages/Messages.js";
-import ApiMessages from "../../../../api/factory/messages/messages.js";
+//import ApiMessages from "../../../../api/factory/messages/messages.js";
 
 export default {
 	name: "TabMessages",
@@ -11,29 +11,50 @@ export default {
 	},
 	data(){
 		return {
-			endpoint: ApiMessages
+			//endpoint: ApiMessages
 		};
 	},
+	computed: {
+		prestudent_ids() {
+			if (this.modelValue.prestudent_id)
+			{
+				return [this.modelValue.prestudent_id];
+			}
+			return this.modelValue.map(e => e.prestudent_id);
+		},
+		person_ids() {
+			if (this.modelValue.person_id)
+			{
+				return [this.modelValue.person_id];
+			}
+			return this.modelValue.map(e => e.person_id);
+		},
+	},
 	template: `
 	<div class="stv-details-messages h-100 pb-3 overflow-hidden">
-	
-	<template v-if="modelValue.prestudent_id">
-		<core-messages
-			ref="formc"
-			:endpoint="endpoint"
-			type-id="prestudent_id"
-			:id="modelValue.prestudent_id"
-			messageLayout="twoColumnsTableLeft"
-			open-mode="modal"
-			show-table
-			>
-		</core-messages>
-	</template>
-	<template v-else>
-		 <h3><strong>No valid prestudent_id!</strong></h3>
-		 <p>{{modelValue.anmerkungen}}</p>
-	</template>
 
+		<template v-if="prestudent_ids">
+			<core-messages
+				ref="formc"
+				type-id="prestudent_id"
+				:id="prestudent_ids"
+				messageLayout="twoColumnsTableLeft"
+				open-mode="modal"
+				show-table
+				>
+			</core-messages>
+		</template>
+		<template v-else >
+			<core-messages
+				ref="formc"
+				type-id="person_id"
+				:id="person_ids"
+				messageLayout="twoColumnsTableLeft"
+				open-mode="modal"
+				show-table
+				>
+			</core-messages>
+		</template>
 	</div>
 	`
 };
\ No newline at end of file
diff --git a/system/phrasesupdate.php b/system/phrasesupdate.php
index 5fd4404ef..39ff6c2e5 100644
--- a/system/phrasesupdate.php
+++ b/system/phrasesupdate.php
@@ -52330,6 +52330,108 @@ I have been informed that I am under no obligation to consent to the transmissio
 		)
 	),
 	// ### Personen zusammenlegen Phrasen END
+	// ### Refactor Messages START
+	array(
+		'app' => 'core',
+		'category' => 'ui',
+		'phrase' => 'errorMissingOrInvalidParameterRecipientTypeId',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Fehlender oder ungültiger Parameter Type_ID Empfänger',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'Missing or invalid parameter type ID Recipient',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
+	),
+	array(
+		'app' => 'core',
+		'category' => 'ui',
+		'phrase' => 'errorMissingOrInvalidParameterRecipientIds',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Fehlende(r) oder ungültige(r) Parameter Empfänger-Id(s)',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'Missing or invalid parameter(s) Recipient ID(s)',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
+	),
+	array(
+		'app' => 'core',
+		'category' => 'ui',
+		'phrase' => 'errorMissingOrInvalidParameters',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Fehlende(r) oder ungültige(r) Parameter {parameter}',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'Missing or invalid parameter(s) {parameter}',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
+	),
+	array(
+		'app' => 'core',
+		'category' => 'messages',
+		'phrase' => 'errorEditorNotAvailable',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Editor-Instanz nicht verfügbar.',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'Editor instance is not available.',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
+	),
+	array(
+		'app' => 'core',
+		'category' => 'messages',
+		'phrase' => 'error_missingLogic',
+		'insertvon' => 'system',
+		'phrases' => array(
+			array(
+				'sprache' => 'German',
+				'text' => 'Logik für Type ID {type} nicht implementiert.',
+				'description' => '',
+				'insertvon' => 'system'
+			),
+			array(
+				'sprache' => 'English',
+				'text' => 'logic for type ID {type} not implemented.',
+				'description' => '',
+				'insertvon' => 'system'
+			)
+		)
+	),
+	// ### Refactor Messages END
 );