diff --git a/modules/helpdesk/i18n/default_de.json b/modules/helpdesk/i18n/default_de.json
index 93d2542..5400c1e 100644
--- a/modules/helpdesk/i18n/default_de.json
+++ b/modules/helpdesk/i18n/default_de.json
@@ -345,5 +345,16 @@
   "Upcoming meetings": "Kommende Termine",
   "Past meetings": "Vergangene Termine",
   "No meetings found for this customer.": "Keine Termine für diesen Kunden gefunden.",
-  "Could not load meetings.": "Termine konnten nicht geladen werden."
+  "Could not load meetings.": "Termine konnten nicht geladen werden.",
+  "Domains": "Domains",
+  "Search domains...": "Domains suchen...",
+  "Customer No.": "Kunden-Nr.",
+  "Customer Name": "Kundenname",
+  "Administration": "Verwaltung",
+  "No domains found": "Keine Domains gefunden",
+  "Could not load domains.": "Domains konnten nicht geladen werden.",
+  "Lookup": "Nachschlagen",
+  "Monitoring": "Monitoring",
+  "Contract type": "Vertragsart",
+  "Customer": "Kunde"
 }
diff --git a/modules/helpdesk/i18n/default_en.json b/modules/helpdesk/i18n/default_en.json
index e03a598..c32a78b 100644
--- a/modules/helpdesk/i18n/default_en.json
+++ b/modules/helpdesk/i18n/default_en.json
@@ -345,5 +345,16 @@
   "Upcoming meetings": "Upcoming meetings",
   "Past meetings": "Past meetings",
   "No meetings found for this customer.": "No meetings found for this customer.",
-  "Could not load meetings.": "Could not load meetings."
+  "Could not load meetings.": "Could not load meetings.",
+  "Domains": "Domains",
+  "Search domains...": "Search domains...",
+  "Customer No.": "Customer No.",
+  "Customer Name": "Customer Name",
+  "Administration": "Administration",
+  "No domains found": "No domains found",
+  "Could not load domains.": "Could not load domains.",
+  "Lookup": "Lookup",
+  "Monitoring": "Monitoring",
+  "Contract type": "Contract type",
+  "Customer": "Customer"
 }
diff --git a/modules/helpdesk/lib/Module/Helpdesk/Service/BcODataGateway.php b/modules/helpdesk/lib/Module/Helpdesk/Service/BcODataGateway.php
index 450f911..d54e89b 100644
--- a/modules/helpdesk/lib/Module/Helpdesk/Service/BcODataGateway.php
+++ b/modules/helpdesk/lib/Module/Helpdesk/Service/BcODataGateway.php
@@ -22,6 +22,7 @@ class BcODataGateway
     public const ENTITY_TICKET_LOG_LV = 'PBI_LV_SupportTicketLog';
     public const ENTITY_CONTRACT_LINES = 'FS_Contract_Lines_Test';
     public const ENTITY_MEETINGS = 'FS_Debitor_Meetings';
+    public const ENTITY_CONTRACT_DOMAINS = 'FS_Contract_Domains';
 
     private const CONNECT_TIMEOUT = 10;
     private const REQUEST_TIMEOUT = 30;
@@ -825,6 +826,57 @@ class BcODataGateway
         return $this->extractODataValues($response);
     }
 
+    /**
+     * Get all contract domains.
+     *
+     * Fetches all domains from the FS_Contract_Domains entity.
+     * Filtering, sorting and pagination are handled PHP-side by the caller.
+     *
+     * @return array<int, array<string, mixed>>
+     */
+    public function listDomains(): array
+    {
+        $select = 'No,Customer_No,Customer_Name,URL,State,Administration';
+        $url = $this->settingsGateway->buildEntityUrl(self::ENTITY_CONTRACT_DOMAINS)
+            . '?$top=5000'
+            . '&$select=' . rawurlencode($select)
+            . '&$orderby=' . rawurlencode('Customer_Name asc');
+
+        $response = $this->request('GET', $url);
+        if ($response === null) {
+            return [];
+        }
+
+        return $this->extractODataValues($response);
+    }
+
+    /**
+     * Get all contract lines of type "Domain".
+     *
+     * Returns contract line metadata for domain-type lines,
+     * keyed by DNS number (No field). Used to enrich the domain
+     * list with contract type information (PI_Header_Type).
+     *
+     * @return array<int, array<string, mixed>>
+     */
+    public function listDomainContractLines(): array
+    {
+        $filter = "Type eq 'Domain'";
+        $select = 'No,Header_No,PI_Header_Type,PI_Header_Description,PI_Header_State,Line_State';
+        $url = $this->settingsGateway->buildEntityUrl(self::ENTITY_CONTRACT_LINES)
+            . '?$filter=' . rawurlencode($filter)
+            . '&$top=5000'
+            . '&$select=' . rawurlencode($select)
+            . '&$orderby=' . rawurlencode('No asc');
+
+        $response = $this->request('GET', $url);
+        if ($response === null) {
+            return [];
+        }
+
+        return $this->extractODataValues($response);
+    }
+
     /**
      * Get a single ticket by ticket number.
      *
diff --git a/modules/helpdesk/module.php b/modules/helpdesk/module.php
index 6c20413..31c07da 100644
--- a/modules/helpdesk/module.php
+++ b/modules/helpdesk/module.php
@@ -15,6 +15,8 @@ return [
 
     'routes' => [
         ['path' => 'helpdesk/search-data', 'target' => 'helpdesk/search-data'],
+        ['path' => 'helpdesk/domains', 'target' => 'helpdesk/domains'],
+        ['path' => 'helpdesk/domains-data', 'target' => 'helpdesk/domains-data'],
         ['path' => 'helpdesk/debitor/{id}', 'target' => 'helpdesk/debitor'],
         ['path' => 'helpdesk/ticket/{id}', 'target' => 'helpdesk/ticket'],
         ['path' => 'helpdesk/settings', 'target' => 'helpdesk/settings'],
diff --git a/modules/helpdesk/pages/helpdesk/domains-data().php b/modules/helpdesk/pages/helpdesk/domains-data().php
new file mode 100644
index 0000000..41ebce2
--- /dev/null
+++ b/modules/helpdesk/pages/helpdesk/domains-data().php
@@ -0,0 +1,157 @@
+<?php
+
+use MintyPHP\Module\Helpdesk\HelpdeskAuthorizationPolicy;
+use MintyPHP\Module\Helpdesk\Service\BcODataGateway;
+use MintyPHP\Support\Guard;
+
+Guard::requireLogin();
+Guard::requireAbilityOrForbidden(HelpdeskAuthorizationPolicy::ABILITY_ACCESS);
+gridRequireGetRequest();
+
+$filters = gridParseFiltersFromSchemaFile(__DIR__ . '/domains/filter-schema.php');
+
+$search = trim((string) ($filters['search'] ?? ''));
+$customer = trim((string) ($filters['customer'] ?? ''));
+$contractType = trim((string) ($filters['contract_type'] ?? ''));
+$state = trim((string) ($filters['state'] ?? ''));
+$state = $state === 'all' ? '' : $state;
+$administration = trim((string) ($filters['administration'] ?? ''));
+$administration = $administration === 'all' ? '' : $administration;
+$order = (string) ($filters['order'] ?? 'Customer_Name');
+$dir = (string) ($filters['dir'] ?? 'asc');
+$limit = (int) ($filters['limit'] ?? 10);
+$offset = (int) ($filters['offset'] ?? 0);
+
+$gateway = app(BcODataGateway::class);
+
+try {
+    $allDomains = $gateway->listDomains();
+} catch (\Throwable) {
+    gridJsonDataResult([], 0);
+
+    return;
+}
+
+// Build contract type lookup: DNS number → {contract_type, contract_no, contract_description}
+$contractLookup = [];
+try {
+    $contractLines = $gateway->listDomainContractLines();
+    foreach ($contractLines as $line) {
+        $dnsNo = trim((string) ($line['No'] ?? ''));
+        if ($dnsNo !== '' && !isset($contractLookup[$dnsNo])) {
+            $contractLookup[$dnsNo] = [
+                'contract_type' => trim((string) ($line['PI_Header_Type'] ?? '')),
+                'contract_no' => trim((string) ($line['Header_No'] ?? '')),
+                'contract_description' => trim((string) ($line['PI_Header_Description'] ?? '')),
+            ];
+        }
+    }
+} catch (\Throwable) {
+    // Contract enrichment is best-effort — continue without it
+}
+
+// Enrich domains with contract type before filtering (so search/sort can use it)
+foreach ($allDomains as &$domain) {
+    $domainNo = trim((string) ($domain['No'] ?? ''));
+    $contract = $contractLookup[$domainNo] ?? null;
+    $domain['contract_type'] = $contract['contract_type'] ?? '';
+    $domain['contract_no'] = $contract['contract_no'] ?? '';
+    $domain['contract_description'] = $contract['contract_description'] ?? '';
+}
+unset($domain);
+
+$filtered = $allDomains;
+
+// Text search across Customer_No, Customer_Name, URL, No, contract_type
+if ($search !== '') {
+    $searchLower = mb_strtolower($search);
+    $filtered = array_values(array_filter($filtered, static function (array $domain) use ($searchLower): bool {
+        $haystack = mb_strtolower(
+            ($domain['Customer_No'] ?? '') . ' '
+            . ($domain['Customer_Name'] ?? '') . ' '
+            . ($domain['URL'] ?? '') . ' '
+            . ($domain['No'] ?? '') . ' '
+            . ($domain['contract_type'] ?? '')
+        );
+
+        return str_contains($haystack, $searchLower);
+    }));
+}
+
+// Customer filter (partial match on Customer_No + Customer_Name)
+if ($customer !== '') {
+    $customerLower = mb_strtolower($customer);
+    $filtered = array_values(array_filter($filtered, static function (array $domain) use ($customerLower): bool {
+        $haystack = mb_strtolower(
+            ($domain['Customer_No'] ?? '') . ' '
+            . ($domain['Customer_Name'] ?? '')
+        );
+
+        return str_contains($haystack, $customerLower);
+    }));
+}
+
+// Contract type filter (partial match)
+if ($contractType !== '') {
+    $contractTypeLower = mb_strtolower($contractType);
+    $filtered = array_values(array_filter($filtered, static function (array $domain) use ($contractTypeLower): bool {
+        return str_contains(mb_strtolower((string) ($domain['contract_type'] ?? '')), $contractTypeLower);
+    }));
+}
+
+// State filter (exact match)
+if ($state !== '') {
+    $filtered = array_values(array_filter($filtered, static function (array $domain) use ($state): bool {
+        return trim((string) ($domain['State'] ?? '')) === $state;
+    }));
+}
+
+// Administration filter (exact match)
+if ($administration !== '') {
+    $filtered = array_values(array_filter($filtered, static function (array $domain) use ($administration): bool {
+        return trim((string) ($domain['Administration'] ?? '')) === $administration;
+    }));
+}
+
+// Sorting
+$total = count($filtered);
+
+usort($filtered, static function (array $a, array $b) use ($order, $dir): int {
+    $va = (string) ($a[$order] ?? '');
+    $vb = (string) ($b[$order] ?? '');
+    $cmp = strnatcasecmp($va, $vb);
+
+    return $dir === 'desc' ? -$cmp : $cmp;
+});
+
+// Pagination
+$rows = array_slice($filtered, $offset, $limit);
+
+// Row preparation
+$stateVariantMap = [
+    'Aktiv' => 'success',
+    'In Vorbereitung' => 'warning',
+];
+
+$debitorBaseUrl = lurl('helpdesk/debitor/');
+
+$preparedRows = [];
+foreach ($rows as $domain) {
+    $customerNo = trim((string) ($domain['Customer_No'] ?? ''));
+    $domainState = (string) ($domain['State'] ?? '');
+
+    $preparedRows[] = [
+        'No' => (string) ($domain['No'] ?? ''),
+        'Customer_No' => $customerNo,
+        'Customer_Name' => (string) ($domain['Customer_Name'] ?? ''),
+        'URL' => (string) ($domain['URL'] ?? ''),
+        'State' => $domainState,
+        'state_variant' => $stateVariantMap[$domainState] ?? 'neutral',
+        'Administration' => (string) ($domain['Administration'] ?? ''),
+        'contract_type' => (string) ($domain['contract_type'] ?? ''),
+        'contract_no' => (string) ($domain['contract_no'] ?? ''),
+        'debitor_url' => $customerNo !== '' ? $debitorBaseUrl . rawurlencode($customerNo) : '',
+    ];
+}
+
+gridJsonDataResult($preparedRows, $total);
diff --git a/modules/helpdesk/pages/helpdesk/domains/filter-schema.php b/modules/helpdesk/pages/helpdesk/domains/filter-schema.php
new file mode 100644
index 0000000..e9061ac
--- /dev/null
+++ b/modules/helpdesk/pages/helpdesk/domains/filter-schema.php
@@ -0,0 +1,76 @@
+<?php
+
+return gridFilterSchema([
+    'query' => [
+        'search' => ['type' => 'string'],
+        'customer' => ['type' => 'string'],
+        'contract_type' => ['type' => 'string'],
+        'state' => ['type' => 'string', 'default' => 'all'],
+        'administration' => ['type' => 'string', 'default' => 'all'],
+        'limit' => ['type' => 'int', 'default' => 10, 'min' => 1, 'max' => 100],
+        'offset' => ['type' => 'int', 'default' => 0, 'min' => 0],
+        'order' => [
+            'type' => 'order',
+            'allowed' => ['Customer_No', 'Customer_Name', 'URL', 'State', 'Administration', 'No', 'contract_type'],
+            'default' => 'Customer_Name',
+        ],
+        'dir' => ['type' => 'dir', 'default' => 'asc'],
+    ],
+    'toolbar' => [
+        [
+            'key' => 'search',
+            'type' => 'text',
+            'label' => 'Search',
+            'placeholder' => 'Search domains...',
+            'input_id' => 'helpdesk-domains-search-input',
+            'search' => true,
+            'query' => ['type' => 'string'],
+        ],
+        [
+            'key' => 'customer',
+            'type' => 'text',
+            'label' => 'Customer',
+            'placeholder' => 'Customer name or no...',
+            'input_id' => 'helpdesk-domains-customer-filter',
+            'query' => ['type' => 'string'],
+            'label_attributes' => ['data-filter-optional' => true],
+        ],
+        [
+            'key' => 'contract_type',
+            'type' => 'text',
+            'label' => 'Contract type',
+            'placeholder' => 'e.g. WEBSITE, SW&H...',
+            'input_id' => 'helpdesk-domains-contract-type-filter',
+            'query' => ['type' => 'string'],
+            'label_attributes' => ['data-filter-optional' => true],
+        ],
+        [
+            'key' => 'state',
+            'type' => 'select',
+            'label' => 'State',
+            'input_id' => 'helpdesk-domains-state-filter',
+            'default' => 'all',
+            'normalize' => 'all_to_empty',
+            'allowed' => [
+                ['id' => 'all', 'description' => 'All'],
+                ['id' => 'Aktiv', 'description' => 'Aktiv'],
+                ['id' => 'In Vorbereitung', 'description' => 'In Vorbereitung'],
+            ],
+            'label_attributes' => ['data-filter-optional' => true],
+        ],
+        [
+            'key' => 'administration',
+            'type' => 'select',
+            'label' => 'Administration',
+            'input_id' => 'helpdesk-domains-admin-filter',
+            'default' => 'all',
+            'normalize' => 'all_to_empty',
+            'allowed' => [
+                ['id' => 'all', 'description' => 'All'],
+                ['id' => 'Intern', 'description' => 'Intern'],
+                ['id' => 'Extern', 'description' => 'Extern'],
+            ],
+            'label_attributes' => ['data-filter-optional' => true],
+        ],
+    ],
+]);
diff --git a/modules/helpdesk/pages/helpdesk/domains/index().php b/modules/helpdesk/pages/helpdesk/domains/index().php
new file mode 100644
index 0000000..a72d86c
--- /dev/null
+++ b/modules/helpdesk/pages/helpdesk/domains/index().php
@@ -0,0 +1,62 @@
+<?php
+
+use MintyPHP\Buffer;
+use MintyPHP\Module\Helpdesk\HelpdeskAuthorizationPolicy;
+use MintyPHP\Module\Helpdesk\Service\HelpdeskSettingsGateway;
+use MintyPHP\Support\Guard;
+
+Guard::requireLogin();
+Guard::requireAbilityOrForbidden(HelpdeskAuthorizationPolicy::ABILITY_ACCESS);
+
+$request = requestInput();
+$query = $request->queryAll();
+
+$filterSchema = require __DIR__ . '/filter-schema.php';
+$listFilterContext = gridBuildListFilterContext($filterSchema, [
+    'query' => $query,
+    'search_keys' => ['search'],
+]);
+$toolbarFilterSchema = $listFilterContext['toolbarFilterSchema'];
+$searchToolbarFilterSchema = $listFilterContext['searchToolbarFilterSchema'];
+$drawerToolbarFilterSchema = $listFilterContext['drawerToolbarFilterSchema'];
+$toolbarFilterState = $listFilterContext['toolbarFilterState'];
+$clientFilterSchema = $listFilterContext['clientFilterSchema'];
+$searchConfig = $listFilterContext['searchConfig'];
+$schemaByKey = $listFilterContext['schemaByKey'] ?? [];
+$filterChipMeta = [
+    'search' => [
+        'label' => t('Search'),
+        'type' => 'text',
+    ],
+    'customer' => [
+        'label' => t('Customer'),
+        'type' => 'text',
+    ],
+    'contract_type' => [
+        'label' => t('Contract type'),
+        'type' => 'text',
+    ],
+    'state' => [
+        'label' => t('State'),
+        'type' => 'select',
+        'default' => (string) ($schemaByKey['state']['default'] ?? 'all'),
+        'options' => gridOptionMapFromAllowed((array) ($schemaByKey['state'] ?? [])),
+    ],
+    'administration' => [
+        'label' => t('Administration'),
+        'type' => 'select',
+        'default' => (string) ($schemaByKey['administration']['default'] ?? 'all'),
+        'options' => gridOptionMapFromAllowed((array) ($schemaByKey['administration'] ?? [])),
+    ],
+];
+
+$settingsGateway = app(HelpdeskSettingsGateway::class);
+$isConfigured = $settingsGateway->isConfigured();
+
+Buffer::set('title', t('Domains'));
+Buffer::set('style_groups', json_encode(['helpdesk']));
+$breadcrumbs = [
+    ['label' => t('Home'), 'path' => 'admin'],
+    ['label' => t('Helpdesk'), 'path' => 'helpdesk'],
+    ['label' => t('Domains')],
+];
diff --git a/modules/helpdesk/pages/helpdesk/domains/index(default).phtml b/modules/helpdesk/pages/helpdesk/domains/index(default).phtml
new file mode 100644
index 0000000..a4e5c16
--- /dev/null
+++ b/modules/helpdesk/pages/helpdesk/domains/index(default).phtml
@@ -0,0 +1,51 @@
+<?php
+$toolbarFilterSchema = is_array($toolbarFilterSchema ?? null) ? $toolbarFilterSchema : [];
+$searchToolbarFilterSchema = is_array($searchToolbarFilterSchema ?? null) ? $searchToolbarFilterSchema : [];
+$drawerToolbarFilterSchema = is_array($drawerToolbarFilterSchema ?? null) ? $drawerToolbarFilterSchema : [];
+$toolbarFilterState = is_array($toolbarFilterState ?? null) ? $toolbarFilterState : [];
+$toolbarOptionSets = is_array($toolbarOptionSets ?? null) ? $toolbarOptionSets : [];
+$clientFilterSchema = is_array($clientFilterSchema ?? null) ? $clientFilterSchema : [];
+$searchConfig = is_array($searchConfig ?? null) ? $searchConfig : null;
+$filterChipMeta = is_array($filterChipMeta ?? null) ? $filterChipMeta : [];
+$isConfigured = $isConfigured ?? false;
+?>
+<?php require templatePath('partials/app-flash.phtml'); ?>
+
+<?php if (!$isConfigured): ?>
+  <div class="notice" data-variant="warning" role="alert">
+    <p><?php e(t('BC connection is not configured. Please configure the connection in the settings.')); ?></p>
+    <a href="<?php e(lurl('helpdesk/settings')); ?>" role="button" class="secondary outline small">
+      <?php e(t('Open settings')); ?>
+    </a>
+  </div>
+<?php endif; ?>
+
+<?php
+$listTitle = t('Domains');
+require templatePath('partials/app-list-titlebar.phtml');
+?>
+<?php
+$filterUiNamespace = 'helpdesk-domains';
+require templatePath('partials/app-list-filters.phtml');
+?>
+<div class="app-list-table">
+  <div id="helpdesk-domains-grid"></div>
+</div>
+
+<script src="<?php e(assetVersion('vendor/gridjs/gridjs.umd.js')); ?>"></script>
+<script type="application/json" id="page-config-helpdesk-domains"><?php gridJsonForJs([
+    'dataUrl' => lurl('helpdesk/domains-data'),
+    'gridLang' => gridLang(),
+    'gridSearch' => $searchConfig,
+    'filterSchema' => $clientFilterSchema,
+    'filterChipMeta' => $filterChipMeta,
+    'labels' => [
+        'no' => t('No.'),
+        'customerName' => t('Customer Name'),
+        'url' => t('URL'),
+        'state' => t('State'),
+        'administration' => t('Administration'),
+        'contractType' => t('Contract type'),
+    ],
+]); ?></script>
+<script type="module" src="<?php e(assetVersion('modules/helpdesk/js/pages/helpdesk-domains-index.js')); ?>"></script>
diff --git a/modules/helpdesk/templates/aside-helpdesk-panel.phtml b/modules/helpdesk/templates/aside-helpdesk-panel.phtml
index c8a3733..056405e 100644
--- a/modules/helpdesk/templates/aside-helpdesk-panel.phtml
+++ b/modules/helpdesk/templates/aside-helpdesk-panel.phtml
@@ -9,55 +9,85 @@ $canViewRiskRadar = !empty($helpdeskNav['can_view_risk_radar']);
 $settingsActive = navActive('helpdesk/settings', true);
 $teamActive = navActive('helpdesk/team', true);
 $riskRadarActive = navActive('helpdesk/risk-radar', true);
+$domainsActive = navActive('helpdesk/domains', true);
 $customersActive = navActive('helpdesk', true);
-if ($settingsActive['isActive'] || $teamActive['isActive'] || $riskRadarActive['isActive']) {
+if ($settingsActive['isActive'] || $teamActive['isActive'] || $riskRadarActive['isActive'] || $domainsActive['isActive']) {
     $customersActive = ['class' => '', 'aria' => '', 'isActive' => false];
 }
 
-$helpdeskNavItems = [
+$helpdeskNavGroups = [
     [
-        'label' => t('Customers'),
-        'path' => 'helpdesk',
-        'active' => $customersActive,
-        'visible' => true,
+        'key' => 'helpdesk-lookup',
+        'label' => t('Lookup'),
+        'icon' => 'bi-search',
+        'items' => [
+            [
+                'label' => t('Customers'),
+                'path' => 'helpdesk',
+                'active' => $customersActive,
+                'visible' => true,
+            ],
+            [
+                'label' => t('Domains'),
+                'path' => 'helpdesk/domains',
+                'active' => $domainsActive,
+                'visible' => true,
+            ],
+        ],
     ],
     [
-        'label' => t('Team workload'),
-        'path' => 'helpdesk/team',
-        'active' => $teamActive,
-        'visible' => $canViewTeam,
+        'key' => 'helpdesk-monitoring',
+        'label' => t('Monitoring'),
+        'icon' => 'bi-bar-chart-line',
+        'items' => [
+            [
+                'label' => t('Team workload'),
+                'path' => 'helpdesk/team',
+                'active' => $teamActive,
+                'visible' => $canViewTeam,
+            ],
+            [
+                'label' => t('Risk radar'),
+                'path' => 'helpdesk/risk-radar',
+                'active' => $riskRadarActive,
+                'visible' => $canViewRiskRadar,
+            ],
+        ],
     ],
     [
-        'label' => t('Risk radar'),
-        'path' => 'helpdesk/risk-radar',
-        'active' => $riskRadarActive,
-        'visible' => $canViewRiskRadar,
-    ],
-    [
-        'label' => t('Settings'),
-        'path' => 'helpdesk/settings',
-        'active' => $settingsActive,
-        'visible' => $canManageSettings,
+        'key' => 'helpdesk-administration',
+        'label' => t('Administration'),
+        'icon' => 'bi-sliders',
+        'items' => [
+            [
+                'label' => t('Settings'),
+                'path' => 'helpdesk/settings',
+                'active' => $settingsActive,
+                'visible' => $canManageSettings,
+            ],
+        ],
     ],
 ];
-
-$visibleItems = array_values(array_filter($helpdeskNavItems, static fn (array $item): bool => !empty($item['visible'])));
-$groupIsActive = false;
-foreach ($visibleItems as $item) {
-    $activeState = $item['active'] ?? [];
-    if (!empty($activeState['isActive'])) {
-        $groupIsActive = true;
-        break;
-    }
-}
 ?>
-<ul class="app-sidebar-admin-nav" aria-label="<?php e(t('Helpdesk')); ?>">
-    <?php if ($visibleItems): ?>
+<ul>
+    <?php foreach ($helpdeskNavGroups as $group):
+        $visibleItems = array_values(array_filter($group['items'], static fn (array $item): bool => !empty($item['visible'])));
+        if (!$visibleItems) {
+            continue;
+        }
+        $groupIsActive = false;
+        foreach ($visibleItems as $item) {
+            if (!empty(($item['active'] ?? [])['isActive'])) {
+                $groupIsActive = true;
+                break;
+            }
+        }
+    ?>
         <li class="app-sidebar-group app-sidebar-admin-group">
-            <details data-details-key="helpdesk-navigation"<?php if ($groupIsActive): ?> open<?php endif; ?>>
+            <details data-details-key="<?php e($group['key']); ?>"<?php if ($groupIsActive): ?> open<?php endif; ?>>
                 <summary>
-                    <i class="bi bi-headset"></i>
-                    <span><?php e(t('Helpdesk')); ?></span>
+                    <i class="bi <?php e($group['icon']); ?>"></i>
+                    <span><?php e($group['label']); ?></span>
                 </summary>
                 <ul>
                     <?php foreach ($visibleItems as $item):
@@ -72,5 +102,5 @@ foreach ($visibleItems as $item) {
                 </ul>
             </details>
         </li>
-    <?php endif; ?>
+    <?php endforeach; ?>
 </ul>
diff --git a/modules/helpdesk/web/js/pages/helpdesk-domains-index.js b/modules/helpdesk/web/js/pages/helpdesk-domains-index.js
new file mode 100644
index 0000000..3a495e9
--- /dev/null
+++ b/modules/helpdesk/web/js/pages/helpdesk-domains-index.js
@@ -0,0 +1,85 @@
+import { initStandardListPage } from '/js/core/app-grid-factory.js';
+import { readPageConfig } from '/js/core/app-page-config.js';
+import { warnOnce } from '/js/core/app-dom.js';
+import { escapeHtml, getAppBase, withCurrentListReturn } from '/js/pages/app-list-utils.js';
+
+const config = readPageConfig('helpdesk-domains');
+if (config) {
+  const gridjs = window.gridjs;
+  if (!gridjs) {
+    warnOnce('UI_INIT_FAIL', 'Helpdesk domains grid init failed: Grid.js missing', { module: 'helpdesk-domains', component: 'grid' });
+  } else {
+    const appBase = getAppBase();
+    const labels = config.labels || {};
+
+    const debitorUrlIndex = 6;
+
+    const gridOptions = {
+      gridjs,
+      container: '#helpdesk-domains-grid',
+      dataUrl: config.dataUrl || 'helpdesk/domains-data',
+      appBase,
+      columns: [
+        { name: labels.no || 'No.', sort: true },
+        {
+          name: labels.customerName || 'Customer Name',
+          sort: true,
+          formatter: (cell) => {
+            const name = escapeHtml(cell?.name || '');
+            const detailUrl = String(cell?.url || '').trim();
+            if (detailUrl === '') {
+              return gridjs.html(name);
+            }
+            const href = escapeHtml(withCurrentListReturn(detailUrl));
+            return gridjs.html(`<a href="${href}">${name}</a>`);
+          },
+        },
+        { name: labels.url || 'URL', sort: true },
+        { name: labels.contractType || 'Contract Type', sort: true },
+        {
+          name: labels.state || 'State',
+          sort: true,
+          formatter: (cell) => {
+            const state = escapeHtml(cell?.state || '');
+            const variant = cell?.variant || 'neutral';
+            return gridjs.html(`<span class="badge" data-variant="${escapeHtml(variant)}">${state}</span>`);
+          },
+        },
+        { name: labels.administration || 'Administration', sort: true },
+        { name: 'debitor_url', hidden: true },
+      ],
+      sortColumns: ['No', 'Customer_Name', 'URL', 'contract_type', 'State', 'Administration', null],
+      paginationLimit: 10,
+      language: config.gridLang || {},
+      mapData: (data) => (data.data || []).map((row) => [
+        row.No || '',
+        { name: row.Customer_Name || '', url: row.debitor_url || '' },
+        row.URL || '',
+        row.contract_type || '',
+        { state: row.State || '', variant: row.state_variant || 'neutral' },
+        row.Administration || '',
+        row.debitor_url || '',
+      ]),
+      search: config.gridSearch || null,
+      filterSchema: config.filterSchema || [],
+      urlSync: true,
+      rowInteraction: { linkColumn: 1 },
+      rowDblClick: {
+        getUrl: (rowData) => rowData?.cells?.[debitorUrlIndex]?.data || '',
+      },
+    };
+
+    const { gridConfig } = initStandardListPage({
+      grid: gridOptions,
+      filters: {
+        mode: 'drawer',
+        chipMeta: config.filterChipMeta || {},
+        watchInputs: ['#helpdesk-domains-search-input'],
+      },
+    });
+
+    if (!gridConfig || !gridConfig.grid) {
+      warnOnce('UI_INIT_FAIL', 'Helpdesk domains grid init failed', { module: 'helpdesk-domains', component: 'grid' });
+    }
+  }
+}
diff --git a/web/css/layout/app-sidebar.css b/web/css/layout/app-sidebar.css
index 7210a03..cde6f9a 100644
--- a/web/css/layout/app-sidebar.css
+++ b/web/css/layout/app-sidebar.css
@@ -75,6 +75,17 @@
     --app-nav-icon-color: #6b7280;
   }
 
+  /* Helpdesk module groups */
+  .app-sidebar-admin-group [data-details-key="helpdesk-lookup"] {
+    --app-nav-icon-color: #2563eb;
+  }
+  .app-sidebar-admin-group [data-details-key="helpdesk-monitoring"] {
+    --app-nav-icon-color: #059669;
+  }
+  .app-sidebar-admin-group [data-details-key="helpdesk-administration"] {
+    --app-nav-icon-color: #6b7280;
+  }
+
   aside.app-sidebar li:has(> .app-empty-state) {
     padding-inline: 19px;
   }