diff --git a/modules/erp/bestellungen/service.php b/modules/erp/bestellungen/service.php
index 712d45a..e4dc0ff 100644
--- a/modules/erp/bestellungen/service.php
+++ b/modules/erp/bestellungen/service.php
@@ -352,3 +352,28 @@ SQL;
         'next_limit' => min($totalCount, $limit + $pageSize),
     ];
 }
+
+function get_sales_order_realtime_snapshot(PDO $pdo, int $limit = 1000): array
+{
+    $limit = max(1, min(2000, $limit));
+
+    $stmt = $pdo->prepare(
+        'SELECT id, created_at, updated_at
+         FROM public.sales_order
+         ORDER BY updated_at DESC NULLS LAST, id DESC
+         LIMIT :limit'
+    );
+    $stmt->bindValue(':limit', $limit, PDO::PARAM_INT);
+    $stmt->execute();
+
+    $rows = [];
+    foreach ($stmt->fetchAll() as $row) {
+        $rows[] = [
+            'id' => (int) ($row['id'] ?? 0),
+            'created_at' => (string) ($row['created_at'] ?? ''),
+            'updated_at' => (string) ($row['updated_at'] ?? ''),
+        ];
+    }
+
+    return $rows;
+}
diff --git a/modules/shared/auth/ui/home.php b/modules/shared/auth/ui/home.php
index f98cf25..bd45820 100644
--- a/modules/shared/auth/ui/home.php
+++ b/modules/shared/auth/ui/home.php
@@ -124,7 +124,7 @@ function auth_render_bestellungen_large_table(array $bestellungenTable): string
         $city = (string) ($row['city'] ?? '');
         $country = (string) ($row['country_name'] ?? '');
 
-        $html[] = '<div class="' . $rowClass . '" role="row" data-component-part="large-table-row" data-bestellungen-row="true">';
+        $html[] = '<div class="' . $rowClass . '" role="row" data-component-part="large-table-row" data-bestellungen-row="true" data-order-id="' . (int) ($row['id'] ?? 0) . '">';
         $html[] = '<div class="sg-large-table__cell" role="cell">' . auth_escape_html($orderDate) . '</div>';
         $html[] = '<div class="sg-large-table__cell" role="cell">';
         $html[] = '<a class="sg-hyperlink" href="#" aria-haspopup="dialog" aria-expanded="false" data-order-drawer-open="true" data-order-id="' . (int) ($row['id'] ?? 0) . '" data-order-number="' . auth_escape_html($orderNumber) . '" data-order-date="' . auth_escape_html($orderDate) . '" data-order-total="' . auth_escape_html($totalAmount) . '" data-order-first-name="' . auth_escape_html($firstName) . '" data-order-last-name="' . auth_escape_html($lastName) . '" data-order-street="' . auth_escape_html($street) . '" data-order-house-number="' . auth_escape_html($houseNumber) . '" data-order-zip="' . auth_escape_html($zip) . '" data-order-city="' . auth_escape_html($city) . '" data-order-country="' . auth_escape_html($country) . '">' . auth_escape_html($orderNumber) . '</a>';
@@ -509,6 +509,7 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "  mediaQuery.addEventListener('change', syncMode);";
     echo "})();";
     echo "let bestellungenTableHandlersInstalled = false;";
+    echo "let bestellungenRealtimeSource = null;";
     echo "function initBestellungenBindings() {";
     echo "  const contentRoot = document.querySelector('[data-left-navigation-content-body]');";
     echo "  if (!contentRoot) { return; }";
@@ -677,6 +678,74 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "    }";
     echo "    syncSearchState();";
     echo "  };";
+    echo "  const getCurrentQueryParams = () => ({";
+    echo "    bestellungen_search: getSearchValue(),";
+    echo "    bestellungen_sort: getSortColumn(),";
+    echo "    bestellungen_dir: getSortDirection(),";
+    echo "    bestellungen_limit: getCurrentLimit(),";
+    echo "  });";
+    echo "  const getOpenDrawerOrderId = () => {";
+    echo "    const trigger = Array.from(contentRoot.querySelectorAll('[data-order-drawer-open]')).find((button) => button.getAttribute('aria-expanded') === 'true');";
+    echo "    return trigger ? (trigger.dataset.orderId || '') : '';";
+    echo "  };";
+    echo "  const reloadBestellungenSection = () => loadFragment(getCurrentQueryParams());";
+    echo "  const reloadBestellungenRow = async (orderId) => {";
+    echo "    const targetOrderId = String(orderId || '');";
+    echo "    if (targetOrderId === '') {";
+    echo "      await reloadBestellungenSection();";
+    echo "      return;";
+    echo "    }";
+    echo "    const response = await fetch(buildFragmentUrl(getCurrentQueryParams()).toString(), { credentials: 'same-origin', headers: { 'X-Requested-With': 'XMLHttpRequest' } });";
+    echo "    if (!response.ok) {";
+    echo "      await reloadBestellungenSection();";
+    echo "      return;";
+    echo "    }";
+    echo "    const html = await response.text();";
+    echo "    const doc = new DOMParser().parseFromString(html, 'text/html');";
+    echo "    const newRow = Array.from(doc.querySelectorAll('[data-bestellungen-row]')).find((row) => (row.dataset.orderId || '') === targetOrderId) || null;";
+    echo "    const currentRow = Array.from(contentRoot.querySelectorAll('[data-bestellungen-row]')).find((row) => (row.dataset.orderId || '') === targetOrderId) || null;";
+    echo "    if (!newRow || !currentRow) {";
+    echo "      await reloadBestellungenSection();";
+    echo "      return;";
+    echo "    }";
+    echo "    const openDrawerOrderId = getOpenDrawerOrderId();";
+    echo "    currentRow.outerHTML = newRow.outerHTML;";
+    echo "    if (openDrawerOrderId === targetOrderId) {";
+    echo "      const reopenedTrigger = Array.from(contentRoot.querySelectorAll('[data-order-drawer-open]')).find((button) => (button.dataset.orderId || '') === targetOrderId) || null;";
+    echo "      if (reopenedTrigger) {";
+    echo "        openDrawer(reopenedTrigger);";
+    echo "      }";
+    echo "    }";
+    echo "  };";
+    echo "  const connectBestellungenRealtime = () => {";
+    echo "    if (!window.EventSource) { return null; }";
+    echo "    if (bestellungenRealtimeSource) {";
+    echo "      bestellungenRealtimeSource.close();";
+    echo "    }";
+    echo "    const source = new EventSource('/api/realtime/bestellungen.php', { withCredentials: true });";
+    echo "    source.addEventListener('bestellungen.changed', (event) => {";
+    echo "      const payload = parseJsonRealtimeEvent(event.data);";
+    echo "      if (!payload) { return; }";
+    echo "      const kind = String(payload.kind || '');";
+    echo "      const orderId = payload.orderId !== undefined && payload.orderId !== null ? String(payload.orderId) : '';";
+    echo "      if (kind === 'updated' && orderId !== '') {";
+    echo "        void reloadBestellungenRow(orderId);";
+    echo "        return;";
+    echo "      }";
+    echo "      void reloadBestellungenSection();";
+    echo "    });";
+    echo "    bestellungenRealtimeSource = source;";
+    echo "    return source;";
+    echo "  };";
+    echo "  const parseJsonRealtimeEvent = (raw) => {";
+    echo "    if (typeof raw !== 'string' || raw.trim() === '') { return null; }";
+    echo "    try {";
+    echo "      const parsed = JSON.parse(raw);";
+    echo "      return parsed && typeof parsed === 'object' ? parsed : null;";
+    echo "    } catch (error) {";
+    echo "      return null;";
+    echo "    }";
+    echo "  };";
     echo "  if (!bestellungenTableHandlersInstalled) {";
     echo "    bestellungenTableHandlersInstalled = true;";
     echo "    contentRoot.addEventListener('click', (event) => {";
@@ -727,6 +796,7 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "    });";
     echo "  }";
     echo "  bindTable();";
+    echo "  connectBestellungenRealtime();";
     echo "}";
     echo "(() => {";
     echo "  const overlay = document.querySelector('[data-otc-order-overlay]');";
diff --git a/public/api/realtime/bestellungen.php b/public/api/realtime/bestellungen.php
new file mode 100644
index 0000000..ae52247
--- /dev/null
+++ b/public/api/realtime/bestellungen.php
@@ -0,0 +1,115 @@
+<?php
+declare(strict_types=1);
+
+require_once __DIR__ . '/../../../modules/shared/db.php';
+require_once __DIR__ . '/../../../modules/shared/auth/service.php';
+require_once __DIR__ . '/../../../modules/erp/bestellungen/service.php';
+
+header('Content-Type: text/event-stream; charset=utf-8');
+header('Cache-Control: no-cache, no-transform');
+header('Connection: keep-alive');
+header('X-Accel-Buffering: no');
+
+ignore_user_abort(true);
+set_time_limit(0);
+
+if (function_exists('apache_setenv')) {
+    @apache_setenv('no-gzip', '1');
+}
+@ini_set('zlib.output_compression', '0');
+
+$env = expand_env_values(parse_env_file(__DIR__ . '/../../../.env'));
+
+try {
+    $pdo = connect_database($env);
+} catch (Throwable $e) {
+    http_response_code(500);
+    echo 'Database connection failed';
+    exit;
+}
+
+auth_bootstrap_session();
+$currentUser = auth_current_user($pdo);
+if ($currentUser === null) {
+    http_response_code(401);
+    echo 'Unauthorized';
+    exit;
+}
+
+session_write_close();
+
+while (ob_get_level() > 0) {
+    ob_end_flush();
+}
+
+$sendEvent = static function (string $eventName, array $payload): void {
+    echo 'event: ' . $eventName . "\n";
+    echo 'data: ' . json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) . "\n\n";
+    flush();
+};
+
+$lastHeartbeatAt = time();
+$state = [];
+foreach (get_sales_order_realtime_snapshot($pdo) as $row) {
+    $state[(int) $row['id']] = (string) $row['updated_at'];
+}
+
+echo ": connected\n\n";
+flush();
+
+while (!connection_aborted()) {
+    try {
+        $snapshot = get_sales_order_realtime_snapshot($pdo);
+        $nextState = [];
+
+        foreach ($snapshot as $row) {
+            $orderId = (int) ($row['id'] ?? 0);
+            if ($orderId <= 0) {
+                continue;
+            }
+
+            $updatedAt = (string) ($row['updated_at'] ?? '');
+            $nextState[$orderId] = $updatedAt;
+
+            if (!array_key_exists($orderId, $state)) {
+                $sendEvent('bestellungen.changed', [
+                    'kind' => 'created',
+                    'orderId' => $orderId,
+                    'updatedAt' => $updatedAt,
+                ]);
+                continue;
+            }
+
+            if ($state[$orderId] !== $updatedAt) {
+                $sendEvent('bestellungen.changed', [
+                    'kind' => 'updated',
+                    'orderId' => $orderId,
+                    'updatedAt' => $updatedAt,
+                ]);
+            }
+        }
+
+        $state = $nextState;
+
+        if ((time() - $lastHeartbeatAt) >= 15) {
+            echo ": ping\n\n";
+            flush();
+            $lastHeartbeatAt = time();
+        }
+
+        usleep(2000000);
+    } catch (Throwable $e) {
+        echo ": error\n\n";
+        flush();
+        try {
+            $pdo = connect_database($env);
+            $state = [];
+            foreach (get_sales_order_realtime_snapshot($pdo) as $row) {
+                $state[(int) $row['id']] = (string) $row['updated_at'];
+            }
+        } catch (Throwable $reconnectError) {
+            // Keep the connection open and try again on the next loop.
+        }
+        usleep(5000000);
+    }
+}