diff --git a/config/widgets.php b/config/widgets.php
index 59a7be49..9df460e9 100644
--- a/config/widgets.php
+++ b/config/widgets.php
@@ -40,7 +40,7 @@ return [
         'title' => 'Systemstatus',
         'icon' => 'SS',
         'zone' => 'sidebar',
-        'default_enabled' => true,
+        'default_enabled' => false,
         'supports_public_home' => true,
         'summary' => 'Zeigt Desktop-Skin, Shell-Status und den aktuellen Ausbaugrad.',
         'content' => 'Shell, Fenster-Manager und Registry laufen bereits. Login und Fachmodule folgen spaeter.',
diff --git a/public/api/user-self-management/index.php b/public/api/user-self-management/index.php
index f5194a2a..d9e0bc99 100644
--- a/public/api/user-self-management/index.php
+++ b/public/api/user-self-management/index.php
@@ -6,6 +6,7 @@ require_once dirname(__DIR__, 3) . '/src/App/bootstrap.php';
 
 use App\ConfigLoader;
 use App\KeycloakAuth;
+use App\LdapProvisioner;
 use App\UserSelfManagementService;
 use Desktop\AppRegistry;
 use Desktop\AppVisibility;
@@ -29,6 +30,8 @@ $auth = new KeycloakAuth($keycloakConfig);
 $registry = new AppRegistry($projectRoot . '/config/apps.php');
 $widgetRegistry = new WidgetRegistry($projectRoot . '/config/widgets.php');
 $service = new UserSelfManagementService($projectRoot);
+$registrationConfig = ConfigLoader::load($projectRoot, 'registration');
+$ldap = new LdapProvisioner($registrationConfig);
 $isAuthenticated = $auth->isAuthenticated();
 $authUser = $isAuthenticated && is_array($_SESSION['desktop_auth']['user'] ?? null)
     ? $_SESSION['desktop_auth']['user']
@@ -58,6 +61,22 @@ $after = $service->save($decoded, $authUser, $visibleApps, $widgets, $skins);
 $payload = $service->buildBootstrapPayload($authUser, $visibleApps, $widgets, $skins);
 $payload['preferences'] = $after;
 $payload['meta']['requires_reload'] = requiresReload($before, $after);
+$payload['meta']['ldap_profile_sync'] = [
+    'attempted' => false,
+    'success' => false,
+    'message' => 'LDAP-Sync nicht ausgefuehrt.',
+];
+
+$username = trim((string) ($authUser['username'] ?? ''));
+if ($username !== '' && $ldap->isEnabled()) {
+    $payload['meta']['ldap_profile_sync']['attempted'] = true;
+    $ldapResult = $ldap->updateUserProfile($username, is_array($after['profile'] ?? null) ? $after['profile'] : []);
+    $payload['meta']['ldap_profile_sync']['success'] = (bool) ($ldapResult['success'] ?? false);
+    $payload['meta']['ldap_profile_sync']['message'] = (string) ($ldapResult['message'] ?? 'LDAP-Sync ohne Rueckmeldung.');
+    if (isset($ldapResult['updated_fields']) && is_array($ldapResult['updated_fields'])) {
+        $payload['meta']['ldap_profile_sync']['updated_fields'] = array_values(array_map('strval', $ldapResult['updated_fields']));
+    }
+}
 
 respond($payload);
 
diff --git a/public/assets/apps/user-self-management/app.js b/public/assets/apps/user-self-management/app.js
index 8eb5d7ef..cf0c6dd9 100644
--- a/public/assets/apps/user-self-management/app.js
+++ b/public/assets/apps/user-self-management/app.js
@@ -345,11 +345,16 @@
 
                     const payload = await response.json();
                     const after = payload.preferences;
+                    const ldapSync = payload.meta?.ldap_profile_sync || null;
                     state.bootstrap = payload;
                     state.draft = clone(after);
-                    state.success = payload.meta?.requires_reload
+                    const baseMessage = payload.meta?.requires_reload
                         ? 'Gespeichert. Desktop wird fuer Skin- oder App-Aenderungen neu geladen.'
                         : 'Einstellungen wurden gespeichert.';
+                    const ldapMessage = ldapSync && ldapSync.attempted
+                        ? ` LDAP: ${ldapSync.message || (ldapSync.success ? 'Synchronisiert.' : 'Nicht synchronisiert.')}`
+                        : '';
+                    state.success = `${baseMessage}${ldapMessage}`;
                     state.saving = false;
                     renderApp(root, state);
 
diff --git a/src/App/LdapProvisioner.php b/src/App/LdapProvisioner.php
index 8432b31e..11e9cb20 100644
--- a/src/App/LdapProvisioner.php
+++ b/src/App/LdapProvisioner.php
@@ -202,6 +202,63 @@ final class LdapProvisioner
         }
     }
 
+    /**
+     * @param array<string, string> $profile
+     * @return array{success: bool, message: string, dn?: string, updated_fields?: array<int, string>, skipped_fields?: array<int, string>}
+     */
+    public function updateUserProfile(string $username, array $profile): array
+    {
+        try {
+            $link = $this->connectAsService();
+            $userDn = $this->userDnForUsername($username);
+            $fullName = trim((string) ($profile['name'] ?? ''));
+            [$givenName, $surname] = $this->splitDisplayName($fullName, $username);
+            $attributeMap = [
+                'cn' => $fullName,
+                'displayName' => $fullName,
+                'givenName' => $givenName,
+                'sn' => $surname,
+                'mail' => trim((string) ($profile['email'] ?? '')),
+                'telephoneNumber' => trim((string) ($profile['phone'] ?? '')),
+                'title' => trim((string) ($profile['title'] ?? '')),
+                'l' => trim((string) ($profile['city'] ?? '')),
+            ];
+            $updatedFields = [];
+            $skippedFields = [];
+
+            foreach ($attributeMap as $attribute => $value) {
+                if ($value === '' && in_array($attribute, ['cn', 'displayName', 'givenName', 'sn'], true)) {
+                    $skippedFields[] = $attribute;
+                    continue;
+                }
+
+                if ($value === '') {
+                    @ldap_mod_del($link, $userDn, [$attribute => []]);
+                    continue;
+                }
+
+                if (!@ldap_mod_replace($link, $userDn, [$attribute => [$value]])) {
+                    throw new RuntimeException('LDAP-Profilaktualisierung fehlgeschlagen fuer ' . $attribute . ': ' . $this->lastError($link));
+                }
+
+                $updatedFields[] = $attribute;
+            }
+
+            return [
+                'success' => true,
+                'message' => 'LDAP-Profil wurde aktualisiert.',
+                'dn' => $userDn,
+                'updated_fields' => $updatedFields,
+                'skipped_fields' => $skippedFields,
+            ];
+        } catch (\Throwable $exception) {
+            return [
+                'success' => false,
+                'message' => $exception->getMessage(),
+            ];
+        }
+    }
+
     /**
      * @param array<string, mixed> $request
      * @param array<string, mixed> $provisioning
@@ -452,6 +509,32 @@ final class LdapProvisioner
         return array_values(array_map('strval', (array) ($this->config['ldap']['default_groups'] ?? [])));
     }
 
+    /**
+     * @return array{0: string, 1: string}
+     */
+    private function splitDisplayName(string $fullName, string $username): array
+    {
+        $normalized = preg_replace('/\s+/', ' ', trim($fullName)) ?? '';
+
+        if ($normalized === '') {
+            return [$username, $username];
+        }
+
+        $parts = explode(' ', $normalized);
+
+        if (count($parts) === 1) {
+            return [$parts[0], $parts[0]];
+        }
+
+        $surname = (string) array_pop($parts);
+        $givenName = trim(implode(' ', $parts));
+
+        return [
+            $givenName !== '' ? $givenName : $surname,
+            $surname !== '' ? $surname : $username,
+        ];
+    }
+
     /**
      * @return resource|\LDAP\Connection
      */