diff --git a/application/controllers/api/frontend/v1/stv/Student.php b/application/controllers/api/frontend/v1/stv/Student.php
new file mode 100644
index 000000000..101d34863
--- /dev/null
+++ b/application/controllers/api/frontend/v1/stv/Student.php
@@ -0,0 +1,588 @@
+<?php
+/**
+ * Copyright (C) 2024 fhcomplete.org
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+use \DateTime as DateTime;
+
+/**
+ * This controller operates between (interface) the JS (GUI) and the back-end
+ * Provides data to the ajax get calls about a Student
+ * Listens to ajax post calls to change the Student data
+ * This controller works with JSON calls on the HTTP GET or POST and the output is always JSON
+ */
+class Student extends FHCAPI_Controller
+{
+	/**
+	 * Calls the parent's constructor and prepares libraries and phrases
+	 */
+	public function __construct()
+	{
+		// TODO(chris): permissions
+		parent::__construct([
+			'get' => ['admin:r', 'assistenz:r'],
+			'save' => ['admin:w', 'assistenz:w'],
+			'check' => ['admin:w', 'assistenz:w'],
+			'add' => ['admin:w', 'assistenz:w']
+		]);
+
+		// Load Libraries
+		$this->load->library('VariableLib', ['uid' => getAuthUID()]);
+
+		// Load language phrases
+		$this->loadPhrases([
+			'ui'
+		]);
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 * Get details for a prestudent
+	 *
+	 * @param string			$prestudent_id
+	 * @return void
+	 */
+	public function get($prestudent_id)
+	{
+		$studiensemester_kurzbz = $this->variablelib->getVar('semester_aktuell');
+
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+
+		$this->PrestudentModel->addSelect('p.*');
+		$this->PrestudentModel->addSelect('s.student_uid');
+		$this->PrestudentModel->addSelect('matrikelnr');
+		$this->PrestudentModel->addSelect('b.aktiv');
+		$this->PrestudentModel->addSelect('v.semester');
+		$this->PrestudentModel->addSelect('v.verband');
+		$this->PrestudentModel->addSelect('v.gruppe');
+		$this->PrestudentModel->addSelect('b.alias');
+
+		if (defined('ACTIVE_ADDONS') && strpos(ACTIVE_ADDONS, 'bewerbung') !== false) {
+			$this->PrestudentModel->addSelect(
+				"(
+					SELECT kontakt 
+					FROM public.tbl_kontakt 
+					WHERE kontakttyp='email' 
+					AND person_id=p.person_id 
+					AND zustellung 
+					ORDER BY kontakt_id 
+					LIMIT 1
+				) AS email_privat",
+				false
+			);
+		}
+
+		$this->PrestudentModel->addJoin('public.tbl_student s', 'prestudent_id', 'LEFT');
+		$this->PrestudentModel->addJoin('public.tbl_benutzer b', 'student_uid = uid', 'LEFT');
+		$this->PrestudentModel->addJoin(
+			'public.tbl_studentlehrverband v',
+			'b.uid = v.student_uid AND v.studiensemester_kurzbz = ' . $this->PrestudentModel->escape($studiensemester_kurzbz),
+			'LEFT'
+		);
+		$this->PrestudentModel->addJoin('public.tbl_person p', 'p.person_id = tbl_prestudent.person_id');
+
+		$result = $this->PrestudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+		
+		#$student = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$student = $result->retval;
+		
+		if (!$student)
+			return show_404();
+
+		$this->terminateWithSuccess(current($student));
+	}
+
+	/**
+	 * Saves data to a prestudent
+	 *
+	 * @param string			$prestudent_id
+	 * @return void
+	 */
+	public function save($prestudent_id)
+	{
+		$studiensemester_kurzbz = $this->variablelib->getVar('semester_aktuell');
+
+		$this->load->model('person/Person_model', 'PersonModel');
+		$this->load->model('crm/Student_model', 'StudentModel');
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+		$this->load->model('education/Studentlehrverband_model', 'StudentlehrverbandModel');
+
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('gebdatum', 'Geburtsdatum', 'is_valid_date');
+
+		$this->form_validation->set_rules('semester', 'Semester', 'integer');
+
+		$this->load->library('UDFLib');
+		
+		$result = $this->udflib->getCiValidations($this->PersonModel, $this->input->post());
+
+		#$fieldValidations = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+		$fieldvalidations = $result->retval;
+
+		$this->form_validation->set_rules($fieldvalidations);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$result = $this->StudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+		
+		#$student = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$student = $result->retval;
+
+		$uid = $student ? current($student)->student_uid : null;
+
+		$result = $this->PrestudentModel->loadWhere(['prestudent_id' => $prestudent_id]);
+
+		#$person = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result));
+		$person = $result->retval;
+
+		$person_id = $person ? current($person)->person_id : null;
+
+		
+		$array_allowed_props_lehrverband = ['verband', 'semester', 'gruppe'];
+		$update_lehrverband = array();
+		foreach ($array_allowed_props_lehrverband as $prop) {
+			$val = $this->input->post($prop);
+			if ($val !== null) {
+				$update_lehrverband[$prop] = $val;
+			}
+		}
+
+		$array_allowed_props_person = [
+			'anrede',
+			'bpk',
+			'titelpre',
+			'titelpost',
+			'nachname',
+			'vorname',
+			'vornamen',
+			'wahlname',
+			'gebdatum',
+			'gebort',
+			'geburtsnation',
+			'svnr',
+			'ersatzkennzeichen',
+			'staatsbuergerschaft',
+			'matr_nr',
+			'sprache',
+			'geschlecht',
+			'familienstand',
+			'foto',
+			'anmerkung',
+			'homepage'
+		];
+		
+		// add UDFs
+		$result = $this->udflib->getDefinitionForModel($this->PersonModel);
+
+		#$definitions = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$definitions = $result->retval;
+
+		foreach ($definitions as $def)
+			$array_allowed_props_person[] = $def['name'];
+
+		$update_person = array();
+		foreach ($array_allowed_props_person as $prop) {
+			$val = $this->input->post($prop);
+			if ($val !== null) {
+				$update_person[$prop] = $val;
+			}
+		}
+
+		$array_allowed_props_student = ['matrikelnr'];
+		$update_student = array();
+		foreach ($array_allowed_props_student as $prop) {
+			$val = $this->input->post($prop);
+			if ($val !== null) {
+				$update_student[$prop] = $val;
+			}
+		}
+
+		// Check PKs
+		if (count($update_lehrverband) + count($update_student) && $uid === null) {
+			// TODO(chris): phrase
+			$this->terminateWithValidationErrors(['' => "Kein/e StudentIn vorhanden!"]);
+		}
+		if (count($update_person) && $person_id === null) {
+			// TODO(chris): phrase
+			$this->terminateWithValidationErrors(['' => "Keine Person vorhanden!"]);
+		}
+
+		// Do Updates
+		if (count($update_lehrverband)) {
+			$result = $this->StudentlehrverbandModel->update([
+				'studiensemester_kurzbz' => $studiensemester_kurzbz,
+				'student_uid' => $uid
+			], $update_lehrverband);
+			#$this->getDataOrTerminateWithError($result);
+			if (isError($result))
+				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		}
+
+		if (count($update_person)) {
+			$result = $this->PersonModel->update(
+				$person_id,
+				$update_person
+			);
+			#$this->getDataOrTerminateWithError($result);
+			if (isError($result))
+				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		}
+
+
+		if (count($update_student)) {
+			$result = $this->StudentModel->update(
+				[$uid],
+				$update_student
+			);
+			#$this->getDataOrTerminateWithError($result);
+			if (isError($result))
+				$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		}
+
+		$this->terminateWithSuccess(array_fill_keys(array_merge(
+			array_keys($update_lehrverband),
+			array_keys($update_person),
+			array_keys($update_student)
+		), ''));
+	}
+
+	public function check()
+	{
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('gebdatum', 'Geburtsdatum', 'callback_isValidDate', [
+			'isValidDate' => $this->p->t('ui', 'error_invalid_date')
+		]);
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		$vorname = $this->input->post('vorname');
+		$nachname = $this->input->post('nachname');
+		$gebdatum = $this->input->post('gebdatum');
+
+		if (!$vorname && !$nachname && !$gebdatum)
+			$this->terminateWithValidationErrors(['At least one of vorname, nachname or gebdatum must be set']);
+
+		$this->load->model('person/Person_model', 'PersonModel');
+
+		if ($gebdatum)
+			$this->PersonModel->db->where('gebdatum', (new DateTime($gebdatum))->format('Y-m-d'));
+		if ($vorname && $nachname) {
+			$this->PersonModel->db->or_group_start();
+			$this->PersonModel->db->where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->db->escape($nachname) . ')', false);
+			$this->PersonModel->db->where('LOWER(vorname)', 'LOWER(' . $this->PersonModel->db->escape($vorname) . ')', false);
+			$this->PersonModel->db->group_end();
+		} elseif ($nachname) {
+			$this->PersonModel->db->or_where('LOWER(nachname)', 'LOWER(' . $this->PersonModel->escape($nachname) . ')', false);
+		}
+
+		$result = $this->PersonModel->load();
+
+		#$data = $this->getDataOrTerminateWithError($result);
+		if (isError($result))
+			$this->terminateWithError(getError($result), self::ERROR_TYPE_GENERAL);
+		$data = $result->retval;
+
+		$this->terminateWithSuccess($data);
+	}
+
+	public function add()
+	{
+		if (!$this->input->post('person_id')) {
+			if (!isset($_POST['address']) || !is_array($_POST['address']))
+				$_POST['address'] = [];
+			$_POST['address']['func'] = 1;
+		}
+		if ($this->input->post('incoming')) {
+			$_POST['ausbildungssemester'] = 0;
+		}
+
+		$this->load->library('form_validation');
+
+		$this->form_validation->set_rules('nachname', 'Nachname', 'callback_requiredIfNotPersonId', [
+			'requiredIfNotPersonId' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('geschlecht', 'Geschlecht', 'callback_requiredIfNotPersonId', [
+			'requiredIfNotPersonId' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('gebdatum', 'Geburtsdatum', 'callback_isValidDate', [
+			'isValidDate' => $this->p->t('ui', 'error_invalid_date')
+		]);
+		$this->form_validation->set_rules('address[func]', 'Address', 'required|integer|less_than[2]|greater_than[-2]');
+		$this->form_validation->set_rules('address[plz]', 'PLZ', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('address[gemeinde]', 'Gemeinde', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('address[ort]', 'Ort', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('address[address]', 'Adresse', 'callback_requiredIfAddressFunc', [
+			'requiredIfAddressFunc' => $this->p->t('ui', 'error_required')
+		]);
+		$this->form_validation->set_rules('email', 'E-Mail', 'valid_email');
+		$this->form_validation->set_rules('studiengang_kz', 'Studiengang', 'required');
+		$this->form_validation->set_rules('studiensemester_kurzbz', 'Studiensemester', 'required');
+		$this->form_validation->set_rules('ausbildungssemester', 'Ausbildungssemester', 'required|integer|less_than[9]|greater_than[-1]');
+		// TODO(chris): validate studienplan with studiengang, semester and orgform?
+		// TODO(chris): validate person_id, studiengang_kz, studiensemester_kurzbz, orgform_kurzbz, nation, gemeinde, ort, geschlecht?
+
+		if (!$this->form_validation->run())
+			$this->terminateWithValidationErrors($this->form_validation->error_array());
+
+		// TODO(chris): This should be in a library
+		$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+		$this->load->model('crm/Prestudentstatus_model', 'PrestudentstatusModel');
+
+		$this->db->trans_start();
+
+		$result = $this->addInteressent();
+
+		$this->db->trans_complete();
+
+		if ($this->db->trans_status() === FALSE)
+			$this->terminateWithError('TODO(chris): TEXT', self::ERROR_TYPE_GENERAL);
+
+		$this->terminateWithSuccess($result);
+	}
+
+	protected function addInteressent()
+	{
+		// Person anlegen wenn nötig
+		$person_id = $this->input->post('person_id');
+		if (!$person_id) {
+			$this->load->model('person/Person_model', 'PersonModel');
+			
+			$data = [
+				'nachname' => $this->input->post('nachname'),
+				'insertamum' => date('c'),
+				'insertvon' => getAuthUID(),
+				'zugangscode' => uniqid(),
+				'aktiv' => true
+			];
+			if ($this->input->post('anrede'))
+				$data['anrede'] = $this->input->post('anrede');
+			if ($this->input->post('titelpre'))
+				$data['titelpre'] = $this->input->post('titelpre');
+			if ($this->input->post('titelpost'))
+				$data['titelpost'] = $this->input->post('titelpost');
+			if ($this->input->post('vorname'))
+				$data['vorname'] = $this->input->post('vorname');
+			if ($this->input->post('vornamen'))
+				$data['vornamen'] = $this->input->post('vornamen');
+			if ($this->input->post('wahlname'))
+				$data['wahlname'] = $this->input->post('wahlname');
+			if ($this->input->post('geschlecht'))
+				$data['geschlecht'] = $this->input->post('geschlecht');
+			if ($this->input->post('gebdatum'))
+				$data['gebdatum'] = (new DateTime($this->input->post('datum_obj')))->format('Y-m-d');
+			if ($this->input->post('geburtsnation'))
+				$data['geburtsnation'] = $this->input->post('geburtsnation');
+			if ($this->input->post('staatsbuergerschaft'))
+				$data['staatsbuergerschaft'] = $this->input->post('staatsbuergerschaft');
+
+			$result = $this->PersonModel->insert($data);
+			if (isError($result))
+				return $result;
+			$person_id = getData($result);
+		}
+
+		// Addresse anlegen
+		$anlegen = $this->input->post('address[func]');
+		if ($anlegen) {
+			$this->load->model('person/Adresse_model', 'AdresseModel');
+
+			$data = [
+				'nation' => $this->input->post('address[nation]'),
+				'strasse' => $this->input->post('address[address]'),
+				'plz' => $this->input->post('address[plz]'),
+				'ort' => $this->input->post('address[ort]'),
+				'gemeinde' => $this->input->post('address[gemeinde]'),
+				'typ' => 'h',
+				'zustelladresse' => true,
+			];
+			if ($anlegen < 0) { // Überschreiben
+				$this->AdresseModel->addOrder('zustelladresse', 'DESC');
+				$this->AdresseModel->addOrder('sort');
+				$result = $this->AdresseModel->loadWhere([
+					'person_id' => $person_id
+				]);
+				if (isError($result))
+					return $result;
+				if (hasData($result)) {
+					$address = current(getData($result));
+
+					$data['updateamum'] = date('c');
+					$data['updatevon'] = getAuthUID();
+
+					$result = $this->AdresseModel->update($address->adresse_id, $data);
+					if (isError($result))
+						return $result;
+				} else {
+					//Wenn keine Adrese vorhanden ist dann eine neue Anlegen
+					$anlegen = 1;
+					$data['heimatadresse'] = true;
+				}
+			}
+			if ($anlegen > 0) {
+				$data['person_id'] = $person_id;
+				$data['insertamum'] = date('c');
+				$data['insertvon'] = getAuthUID();
+				if (!isset($data['heimatadresse']))
+					$data['heimatadresse'] = !$this->input->post('person_id');
+				
+				$result = $this->AdresseModel->insert($data);
+				if (isError($result))
+					return $result;
+			}
+		}
+		
+		// Kontaktdaten
+		$kontaktdaten = [];
+		foreach (['email', 'telefon', 'mobil'] as $k) {
+			$v = $this->input->post($k);
+			if ($v)
+				$kontaktdaten[$k] = $v;
+		}
+		if (count($kontaktdaten)) {
+			$this->load->model('person/Kontakt_model', 'KontaktModel');
+
+			foreach ($kontaktdaten as $typ => $kontakt) {
+				$data = [
+					'person_id' => $person_id,
+					'kontakttyp' => $typ,
+					'kontakt' => $kontakt,
+					'zustellung' => true,
+					'insertamum' => date('c'),
+					'insertvon' => getAuthUID()
+				];
+				$result = $this->KontaktModel->insert($data);
+				if (isError($result))
+					return $result;
+			}
+		}
+
+		// Prestudent anlegen
+		$data = [
+			'aufmerksamdurch_kurzbz' => 'k.A.',
+			'person_id' => $person_id,
+			'studiengang_kz' => $this->input->post('studiengang_kz'),
+			'ausbildungcode' => $this->input->post('letzteausbildung'),
+			'anmerkung' => $this->input->post('anmerkungen'),
+			'reihungstestangetreten' => false,
+			'bismelden' => true
+		];
+		$ausbildungsart = $this->input->post('ausbildungsart');
+		if ($ausbildungsart)
+			$data['anmerkung'] .= ' Ausbildungsart:' . $ausbildungsart;
+		// Incomings und ausserordentliche sind bei Meldung nicht förderrelevant
+		$incoming = $this->input->post('incoming');
+		if ($incoming || substr($data['studiengang_kz'], 0, 1) == '9')
+			$data['foerderrelevant'] = false;
+		// Wenn die Person schon im System erfasst ist, dann die ZGV des Datensatzes uebernehmen
+		$this->PrestudentModel->addOrder('zgvmas_code');
+		$this->PrestudentModel->addOrder('zgv_code', 'DESC');
+		$this->PrestudentModel->addLimit(1);
+		$result = $this->PrestudentModel->loadWhere([
+			'person_id' => $person_id
+		]);
+		if (isError($result))
+			return $result;
+		if (hasData($result)) {
+			$prestudent = current(getData($result));
+			if ($prestudent->zgv_code) {
+				$data['zgv_code'] = $prestudent->zgv_code;
+				$data['zgvort'] = $prestudent->zgvort;
+				$data['zgvdatum'] = $prestudent->zgvdatum;
+
+				$data['zgvmas_code'] = $prestudent->zgvmas_code;
+				$data['zgvmaort'] = $prestudent->zgvmaort;
+				$data['zgvmadatum'] = $prestudent->zgvmadatum;
+			}
+		}
+		// Prestudent speichern
+		$result = $this->PrestudentModel->insert($data);
+		if (isError($result))
+			return $result;
+		$prestudent_id = getData($result);
+
+		// Prestudent Rolle Anlegen
+		$data = [
+			'prestudent_id' => $prestudent_id,
+			'status_kurzbz' => $incoming ? 'Incoming' : 'Interessent',
+			'studiensemester_kurzbz' => $this->input->post('studiensemester_kurzbz'),
+			'ausbildungssemester' => $this->input->post('ausbildungssemester') ?: 0,
+			'orgform_kurzbz' => $this->input->post('orgform_kurzbz') ?: null,
+			'studienplan_id' => $this->input->post('studienplan_id') ?: null,
+			'datum' => date('Y-m-d'),
+			'insertamum' => date('c'),
+			'insertvon' => getAuthUID()
+		];
+		$result = $this->PrestudentstatusModel->insert($data);
+		if (isError($result))
+			return $result;
+
+		if ($incoming) {
+			// TODO(chris): IMPLEMENT!
+			//Matrikelnummer und UID generieren
+			//Benutzerdatensatz anlegen
+			//Studentendatensatz anlegen
+			//StudentLehrverband anlegen
+		}
+
+		// TODO(chris): DEBUG
+		/*$result = $this->PrestudentModel->loadWhere([
+			'pestudent_id' => 1
+		]);
+		if (isError($result)) {
+			return $result;
+		}*/
+
+		return success(true);
+	}
+
+	public function requiredIfNotPersonId($value)
+	{
+		if (isset($_POST['person_id']))
+			return true;
+		return !!$value;
+	}
+	
+	public function requiredIfAddressFunc($value)
+	{
+		if (!$_POST['address']['func'])
+			return true;
+		return !!$value;
+	}
+}
diff --git a/public/js/components/Stv/Studentenverwaltung/Details/Details.js b/public/js/components/Stv/Studentenverwaltung/Details/Details.js
index 0c988179f..7866f1c97 100644
--- a/public/js/components/Stv/Studentenverwaltung/Details/Details.js
+++ b/public/js/components/Stv/Studentenverwaltung/Details/Details.js
@@ -1,14 +1,17 @@
 import {CoreRESTClient} from '../../../../RESTClient.js';
-import FormForm from '../../../Form/Form.js';
+import CoreForm from '../../../Form/Form.js';
 import FormInput from '../../../Form/Input.js';
 import FormUploadImage from '../../../Form/Upload/Image.js';
 
+import CoreUdf from '../../../Udf/Udf.js';
+
 
 export default {
 	components: {
-		FormForm,
+		CoreForm,
 		FormInput,
-		FormUploadImage
+		FormUploadImage,
+		CoreUdf
 	},
 	inject: {
 		showBpk: {
@@ -39,6 +42,7 @@ export default {
 	},
 	data() {
 		return {
+			test: {udf_viaf: 'TEST'},
 			familienstaende: {
 				"": "--keine Auswahl--",
 				"g": "geschieden",
@@ -49,6 +53,7 @@ export default {
 			original: null,
 			data: null,
 			changed: {},
+			udfChanges: false,
 			studentIn: null,
 			gebDatumIsValid: false,
 			gebDatumIsInvalid: false
@@ -90,25 +95,33 @@ export default {
 	},
 	methods: {
 		updateStudent(n) {
-			CoreRESTClient
-				.get('components/stv/Student/get/' + n.prestudent_id)
-				.then(result => result.data)
+			// TODO(chris): move to fhcapi.factory
+			this.$fhcApi
+				.get('api/frontend/v1/stv/student/get/' + n.prestudent_id)
 				.then(result => {
-					this.data = result;
+					this.data = result.data;
 					if (!this.data.familienstand)
 						this.data.familienstand = '';
-					this.original = {...this.data};
+					this.original = {...(this.original || {}), ...this.data};
 				})
 				.catch(this.$fhcAlert.handleSystemError);
 		},
 		save() {
+			if (!this.changedLength)
+				return;
+
+			this.$refs.form.clearValidation();
 			this.$refs.form
-				.send(CoreRESTClient.post('components/stv/Student/save/' + this.modelValue.prestudent_id, this.changed))
+				.post('api/frontend/v1/stv/student/save/' + this.modelValue.prestudent_id, this.changed)
 				.then(result => {
 					this.original = {...this.data};
 					this.changed = {};
+					this.$refs.form.setFeedback(true, result.data);
 				})
-				.catch(this.$fhcAlert.handleSystemError);
+				.catch(this.$fhcAlert.handleSystemError)
+		},
+		udfsLoaded(udfs) {
+			this.original = {...(this.original || {}), ...udfs};
 		}
 	},
 	created() {
@@ -117,7 +130,7 @@ export default {
 	//TODO(chris): Phrasen
 	//TODO(chris): Geburtszeit? Anzahl der Kinder?
 	template: `
-	<form-form ref="form" class="stv-details-details" @submit.prevent="save">
+	<core-form ref="form" class="stv-details-details" @submit.prevent="save">
 		<div class="position-sticky top-0 z-1">
 			<button type="submit" class="btn btn-primary position-absolute top-0 end-0" :disabled="!changedLength">Speichern</button>
 		</div>
@@ -235,6 +248,7 @@ export default {
 						:enable-time-picker="false"
 						format="dd.MM.yyyy"
 						preview-format="dd.MM.yyyy"
+						teleport
  						>
 					</form-input>
 					<form-input
@@ -362,6 +376,7 @@ export default {
 			<div v-else>
 				Loading...
 			</div>
+			<core-udf @load="udfsLoaded" v-model="data" class="row-cols-3 g-3 mb-3" ci-model="person/person" :pk="{person_id:modelValue.person_id}"></core-udf>
 		</fieldset>
 		<fieldset v-if="data?.student_uid" class="overflow-hidden">
 			<legend>StudentIn</legend>
@@ -441,5 +456,5 @@ export default {
 				Loading...
 			</div>
 		</fieldset>
-	</form-form>`
+	</core-form>`
 };
\ No newline at end of file
diff --git a/public/js/components/Stv/Studentenverwaltung/List/New.js b/public/js/components/Stv/Studentenverwaltung/List/New.js
index 7bba76e51..acc9781de 100644
--- a/public/js/components/Stv/Studentenverwaltung/List/New.js
+++ b/public/js/components/Stv/Studentenverwaltung/List/New.js
@@ -106,18 +106,16 @@ export default {
 				return;
 
 			this.abortController.suggestions = new AbortController();
-			CoreRESTClient
-				.post('components/stv/student/check', {
+			// TODO(chris): move to fhcapi.factory
+			this.$fhcapi
+				.post('api/frontend/v1/stv/student/check', {
 					vorname: this.formData.vorname,
 					nachname: this.formData.nachname,
 					gebdatum: this.formData.gebdatum
 				}, {
 					signal: this.abortController.suggestions.signal
 				})
-				.then(result => CoreRESTClient.getData(result.data) || [])
-				.then(result => {
-					this.suggestions = result;
-				})
+				.then(result => this.suggestions = result.data)
 				.catch(error => {
 					// NOTE(chris): repeat request
 					if (error.code != "ERR_CANCELED")
@@ -191,13 +189,14 @@ export default {
 			if (data.studiensemester_kurzbz === undefined)
 				data.studiensemester_kurzbz = this.studiensemesterKurzbz;
 
+			// TODO(chris): move to fhcapi.factory
 			this.$refs.form
-				.send(CoreRESTClient.post('components/stv/student/add', data))
+				.send('api/frontend/v1/stv/student/add', data)
 				.then(result => {
 					this.$fhcAlert.alertSuccess('Gespeichert');
 					this.$refs.modal.hide();
 				})
-				.catch(console.error);
+				.catch(this.$fhcAlert.handleSystemError);
 		}
 	},
 	created() {