diff --git a/openapi.yaml b/openapi.yaml
index 651a693d..21f601e3 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -2204,6 +2204,8 @@ paths:
                               transaction_draft_customer_number:
                                 type: integer
                                 nullable: true
+                              default_distribution_department_id:
+                                type: integer
                             additionalProperties: false
                         additionalProperties: true
         '400':
@@ -12536,7 +12538,7 @@ components:
       type: object
       properties:
         module: { type: string, enum: [economic] }
-        variable: { type: string, enum: [adminFeeMonthly, adminFeeOrder, feeProductId, invoiceLayoutNumber, paymentTermsNumber, transactionDraftCustomerNumber] }
+        variable: { type: string, enum: [adminFeeMonthly, adminFeeOrder, feeProductId, invoiceLayoutNumber, paymentTermsNumber, transactionDraftCustomerNumber, defaultDepartmentId] }
         type: { type: string, enum: [string, int] }
         value:
           oneOf:
diff --git a/services/nginx/app/classes/economic.php b/services/nginx/app/classes/economic.php
index 314ad730..e506816e 100644
--- a/services/nginx/app/classes/economic.php
+++ b/services/nginx/app/classes/economic.php
@@ -30,6 +30,7 @@ use interfaces\economic_i;
 class economic implements economic_i
 {
     public const DRAFT_CUSTOMER_EXPORT_BLOCKED_MESSAGE = 'Transactions for the configured draft customer cannot be exported to e-conomic.';
+    public const DEFAULT_DISTRIBUTION_DEPARTMENT_ID = 1;
 
     /**
      * Configuration of the economic module
@@ -133,6 +134,14 @@ class economic implements economic_i
         return $customer_number > 0 ? $customer_number : null;
     }
 
+    public function getDefaultDistributionDepartmentId(): int
+    {
+        $value = $this->config->default_department_id->getVariableValue();
+        $department_id = (int)$value;
+
+        return $department_id > 0 ? $department_id : self::DEFAULT_DISTRIBUTION_DEPARTMENT_ID;
+    }
+
     public function isDraftCustomerNumber(?int $customer_number): bool
     {
         $configured_customer_number = $this->getTransactionDraftCustomerNumber();
diff --git a/services/nginx/app/classes/redis.php b/services/nginx/app/classes/redis.php
index 29e7f601..76c0c96a 100644
--- a/services/nginx/app/classes/redis.php
+++ b/services/nginx/app/classes/redis.php
@@ -395,6 +395,11 @@ class redis implements redis_i
         return $prefix . ':' . $dateFrom . ':' . $dateTo;
     }
 
+    private function workfeedEmployeeNameCacheKey(string $employeeId): string
+    {
+        return 'workfeed_employee_name:' . rawurlencode($employeeId);
+    }
+
     /**
      * @inheritDoc
      */
@@ -447,6 +452,61 @@ class redis implements redis_i
         return $this;
     }
 
+    /**
+     * @inheritDoc
+     */
+    public function cache_workfeed_employee_name(string $employeeId, string $employeeName, int $ttl = 86400): self
+    {
+        $normalizedEmployeeId = trim($employeeId);
+        if ($normalizedEmployeeId === '') {
+            return $this;
+        }
+
+        $normalizedEmployeeName = trim($employeeName);
+        if ($normalizedEmployeeName === '') {
+            return $this;
+        }
+
+        $key = $this->workfeedEmployeeNameCacheKey($normalizedEmployeeId);
+        $this->set($key, $normalizedEmployeeName);
+        $this->expire($key, $ttl);
+
+        return $this;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function get_workfeed_employee_name(string $employeeId): string|null
+    {
+        $normalizedEmployeeId = trim($employeeId);
+        if ($normalizedEmployeeId === '') {
+            return null;
+        }
+
+        $value = $this->get($this->workfeedEmployeeNameCacheKey($normalizedEmployeeId));
+        if ($value === null) {
+            return null;
+        }
+
+        $normalized = trim((string)$value);
+        return $normalized !== '' ? $normalized : null;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function clear_workfeed_employee_name(string $employeeId): self
+    {
+        $normalizedEmployeeId = trim($employeeId);
+        if ($normalizedEmployeeId === '') {
+            return $this;
+        }
+
+        $this->delete($this->workfeedEmployeeNameCacheKey($normalizedEmployeeId));
+        return $this;
+    }
+
     /**
      * @inheritDoc
      */
diff --git a/services/nginx/app/classes/workfeed_shift_time_resolver.php b/services/nginx/app/classes/workfeed_shift_time_resolver.php
index ced27cc2..821d617d 100644
--- a/services/nginx/app/classes/workfeed_shift_time_resolver.php
+++ b/services/nginx/app/classes/workfeed_shift_time_resolver.php
@@ -44,8 +44,20 @@ final class workfeed_shift_time_resolver
             'clockOut',
             'clockOutTime',
         ]);
+        $check_in_punch = self::firstDateTimeFromPaths($record, [
+            'checkIn.time',
+            'checkIn',
+        ]);
+        $check_out_punch = self::firstDateTimeFromPaths($record, [
+            'checkOut.time',
+            'checkOut',
+        ]);
         $saved_actual_end = $actual_only_end;
 
+        if ($saved_actual_end === null && $check_in_punch !== null && $check_out_punch === null) {
+            $saved_actual_end = new DateTime();
+        }
+
         if ($actual_start === null || $scheduled_end === null || $saved_actual_end === null) {
             return null;
         }
diff --git a/services/nginx/app/cron/Cron.php b/services/nginx/app/cron/Cron.php
index db52c3a9..2bd0f282 100644
--- a/services/nginx/app/cron/Cron.php
+++ b/services/nginx/app/cron/Cron.php
@@ -5,10 +5,12 @@ use classes\backup_store;
 use classes\economic;
 use classes\economic_transfer_queue;
 use classes\invoice_period_flag_service;
+use classes\redis;
 use classes\system_search_cache;
 use classes\system_search_document_index;
 use classes\system_search_economic_customer_index;
 use classes\system_search_registry;
+use classes\workfeed;
 use classes\xlvask;
 use classes\slack as Slack;
 use classes\email as Email;
@@ -124,6 +126,12 @@ $cron_tasks = [
         'next_run' => 0,
         'function' => 'PreloadDepartmentWeatherResponsesCron',
     ],
+    'WarmWorkfeedEmployeeNamesCron' => [
+        'interval' => 21600, // 6 hours
+        'last_run' => 0,
+        'next_run' => 0,
+        'function' => 'WarmWorkfeedEmployeeNamesCron',
+    ],
     'GoalsProgressAlertsCron' => [
         'interval' => 60, // check every minute
         'last_run' => 0,
@@ -183,6 +191,241 @@ function WarmInvoicePeriodAutomaticFlagsCron(): void
     }
 }
 
+function WarmWorkfeedEmployeeNamesCron(): void
+{
+    if (!defined('redis')) {
+        warn('WarmWorkfeedEmployeeNamesCron skipped: Redis is unavailable.');
+        return;
+    }
+
+    $start = microtime(true);
+
+    $ttlRaw = getenv('WORKFEED_EMPLOYEE_NAME_CACHE_TTL');
+    $ttl = max(
+        60,
+        (int)(
+            $ttlRaw !== false && trim((string)$ttlRaw) !== ''
+                ? $ttlRaw
+                : 86400
+        )
+    );
+
+    try {
+        $employeesResponse = (new workfeed())->listEmployees();
+    } catch (Throwable $e) {
+        warn('WarmWorkfeedEmployeeNamesCron failed to list employees: ' . $e->getMessage());
+        return;
+    }
+
+    $employees = normalizeWorkfeedEmployeeWarmupCollection($employeesResponse);
+    if ($employees === []) {
+        echo "[" . date('Y-m-d H:i:s') . "][CRON] WarmWorkfeedEmployeeNamesCron: no employees returned.\n";
+        return;
+    }
+
+    try {
+        $cache = new redis();
+    } catch (Throwable $e) {
+        warn('WarmWorkfeedEmployeeNamesCron failed to initialize cache: ' . $e->getMessage());
+        return;
+    }
+
+    $cachedCount = 0;
+    $skippedCount = 0;
+    foreach ($employees as $employee) {
+        $identity = extractWorkfeedEmployeeWarmupIdentity($employee);
+        $employeeIds = extractWorkfeedEmployeeWarmupIds($employee);
+        $employeeName = $identity['name'] ?? null;
+        if ($employeeIds === [] || $employeeName === null) {
+            $skippedCount++;
+            continue;
+        }
+
+        foreach ($employeeIds as $employeeId) {
+            $cache->cache_workfeed_employee_name($employeeId, $employeeName, $ttl);
+            $cachedCount++;
+        }
+    }
+
+    $durationMs = (int)round((microtime(true) - $start) * 1000);
+    echo "[" . date('Y-m-d H:i:s') . "][CRON] WarmWorkfeedEmployeeNamesCron: cached " . $cachedCount
+        . " employees, skipped " . $skippedCount . " in " . $durationMs . "ms.\n";
+}
+
+/**
+ * @return array<int,mixed>
+ */
+function normalizeWorkfeedEmployeeWarmupCollection(mixed $raw): array
+{
+    if (is_array($raw)) {
+        return array_values($raw);
+    }
+
+    if ($raw instanceof Traversable) {
+        return array_values(iterator_to_array($raw, false));
+    }
+
+    if (!is_object($raw)) {
+        return [];
+    }
+
+    $record = get_object_vars($raw);
+    foreach (['data', 'items', 'employees', 'results'] as $key) {
+        $nested = $record[$key] ?? null;
+        $normalized = normalizeWorkfeedEmployeeWarmupCollection($nested);
+        if ($normalized !== []) {
+            return $normalized;
+        }
+    }
+
+    return [$raw];
+}
+
+/**
+ * @return array{id:?string,name:?string}
+ */
+function extractWorkfeedEmployeeWarmupIdentity(mixed $employee): array
+{
+    $employeeIds = extractWorkfeedEmployeeWarmupIds($employee);
+
+    $record = is_object($employee)
+        ? get_object_vars($employee)
+        : (is_array($employee) ? $employee : []);
+
+    if ($record === []) {
+        return [
+            'id' => null,
+            'name' => null,
+        ];
+    }
+
+    $employeeId = $employeeIds[0] ?? null;
+
+    $employeeName = null;
+    foreach ([
+        'employeeName',
+        'employee.name',
+        'employee.fullName',
+        'employee.full_name',
+        'employee.displayName',
+        'employee.display_name',
+        'name',
+        'fullName',
+        'full_name',
+        'displayName',
+        'display_name',
+        'user.name',
+        'user.fullName',
+        'user.full_name',
+        'user.displayName',
+        'user.display_name',
+    ] as $path) {
+        $employeeName = normalizeWarmupTextValue(getWarmupRecordValueByPath($record, $path));
+        if ($employeeName !== null) {
+            break;
+        }
+    }
+
+    if ($employeeName === null) {
+        $firstName = normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'firstname'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'firstName'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'first_name'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.firstname'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.firstName'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.first_name'));
+        $lastName = normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'lastname'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'lastName'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'last_name'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.lastname'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.lastName'))
+            ?? normalizeWarmupTextValue(getWarmupRecordValueByPath($record, 'employee.last_name'));
+
+        $parts = array_values(array_filter([$firstName, $lastName], static fn (?string $value): bool => $value !== null));
+        if ($parts !== []) {
+            $employeeName = implode(' ', $parts);
+        }
+    }
+
+    if ($employeeName !== null && strcasecmp($employeeName, 'Unknown employee') === 0) {
+        $employeeName = null;
+    }
+
+    return [
+        'id' => $employeeId,
+        'name' => $employeeName,
+    ];
+}
+
+/**
+ * @return array<int,string>
+ */
+function extractWorkfeedEmployeeWarmupIds(mixed $employee): array
+{
+    $record = is_object($employee)
+        ? get_object_vars($employee)
+        : (is_array($employee) ? $employee : []);
+
+    if ($record === []) {
+        return [];
+    }
+
+    $employeeIds = [];
+    foreach ([
+        'employeeID',
+        'employeeId',
+        'id',
+        'uuid',
+        'employee.id',
+        'employee.employeeID',
+        'employee.employeeId',
+        'employee.uuid',
+        'employeeUUID',
+        'employee_uuid',
+        'user.id',
+        'userId',
+    ] as $path) {
+        $employeeId = normalizeWarmupTextValue(getWarmupRecordValueByPath($record, $path));
+        if ($employeeId === null) {
+            continue;
+        }
+
+        $employeeIds[$employeeId] = true;
+    }
+
+    return array_keys($employeeIds);
+}
+
+function getWarmupRecordValueByPath(array $record, string $path): mixed
+{
+    $segments = explode('.', $path);
+    $value = $record;
+    foreach ($segments as $segment) {
+        if (is_array($value) && array_key_exists($segment, $value)) {
+            $value = $value[$segment];
+            continue;
+        }
+
+        if (is_object($value) && isset($value->{$segment})) {
+            $value = $value->{$segment};
+            continue;
+        }
+
+        return null;
+    }
+
+    return $value;
+}
+
+function normalizeWarmupTextValue(mixed $value): ?string
+{
+    if (is_string($value) || is_numeric($value)) {
+        $normalized = trim((string)$value);
+        return $normalized !== '' ? $normalized : null;
+    }
+
+    return null;
+}
+
 function checkUnfulfilledBookings(): void
 {
     // This is deactivated for now, as it is not wanted.
diff --git a/services/nginx/app/interfaces/redis_i.php b/services/nginx/app/interfaces/redis_i.php
index a431312d..152bba20 100644
--- a/services/nginx/app/interfaces/redis_i.php
+++ b/services/nginx/app/interfaces/redis_i.php
@@ -359,6 +359,29 @@ interface redis_i
      */
     public function clear_invoice_period_order_item_rows(string $dateFrom, string $dateTo): self;
 
+    /**
+     * Cache Workfeed employee display name by employee id
+     * @param string $employeeId
+     * @param string $employeeName
+     * @param int $ttl
+     * @return self
+     */
+    public function cache_workfeed_employee_name(string $employeeId, string $employeeName, int $ttl = 86400): self;
+
+    /**
+     * Get cached Workfeed employee display name by employee id
+     * @param string $employeeId
+     * @return string|null
+     */
+    public function get_workfeed_employee_name(string $employeeId): string|null;
+
+    /**
+     * Clear cached Workfeed employee display name by employee id
+     * @param string $employeeId
+     * @return self
+     */
+    public function clear_workfeed_employee_name(string $employeeId): self;
+
     /**
      * Cache a permission evaluation
      * @param string $cache_key
diff --git a/services/nginx/app/modules/economic/config/economic_default_department_id_c.php b/services/nginx/app/modules/economic/config/economic_default_department_id_c.php
new file mode 100644
index 00000000..994537e4
--- /dev/null
+++ b/services/nginx/app/modules/economic/config/economic_default_department_id_c.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace config;
+
+use traits\module_config_variable;
+
+class economic_default_department_id_c
+{
+    use module_config_variable;
+
+    /**
+     * @throws \Exception
+     */
+    public function __construct()
+    {
+        self::setupConfigVariable(
+            'economic',
+            'defaultDepartmentId',
+            'int',
+            false,
+            null,
+            'Fallback department id used when customers have no standard department for invoicing distribution',
+            '1',
+            false,
+            1
+        );
+    }
+}
diff --git a/services/nginx/app/modules/economic/economic_c.php b/services/nginx/app/modules/economic/economic_c.php
index 27bb9c70..50ef0b88 100644
--- a/services/nginx/app/modules/economic/economic_c.php
+++ b/services/nginx/app/modules/economic/economic_c.php
@@ -5,12 +5,14 @@ require_once WD . '/modules/economic/config/economic_admin_fee_monthly_c.php';
 require_once WD . '/modules/economic/config/economic_admin_fee_order_c.php';
 require_once WD . '/modules/economic/config/economic_fee_product_id_c.php';
 require_once WD . '/modules/economic/config/economic_transaction_draft_customer_number_c.php';
+require_once WD . '/modules/economic/config/economic_default_department_id_c.php';
 
 use config\economic_invoice_layout_c;
 use config\economic_payment_terms_c;
 use config\economic_admin_fee_monthly_c;
 use config\economic_admin_fee_order_c;
 use config\economic_fee_product_id_c;
+use config\economic_default_department_id_c;
 use config\economic_transaction_draft_customer_number_c;
 use traits\module_config_t;
 
@@ -23,6 +25,7 @@ class economic_c
     public economic_admin_fee_monthly_c $admin_fee_monthly;
     public economic_admin_fee_order_c $admin_fee_order;
     public economic_fee_product_id_c $fee_product_id;
+    public economic_default_department_id_c $default_department_id;
     public economic_transaction_draft_customer_number_c $transaction_draft_customer_number;
 
     public function __construct()
@@ -34,6 +37,7 @@ class economic_c
             economic_admin_fee_monthly_c::class,
             economic_admin_fee_order_c::class,
             economic_fee_product_id_c::class,
+            economic_default_department_id_c::class,
             economic_transaction_draft_customer_number_c::class,
         ]);
         $this->invoice_layout = new economic_invoice_layout_c();
@@ -41,6 +45,7 @@ class economic_c
         $this->admin_fee_monthly = new economic_admin_fee_monthly_c();
         $this->admin_fee_order = new economic_admin_fee_order_c();
         $this->fee_product_id = new economic_fee_product_id_c();
+        $this->default_department_id = new economic_default_department_id_c();
         $this->transaction_draft_customer_number = new economic_transaction_draft_customer_number_c();
     }
 }
diff --git a/services/nginx/app/openapi.yaml b/services/nginx/app/openapi.yaml
index 9054fd24..402f8458 100644
--- a/services/nginx/app/openapi.yaml
+++ b/services/nginx/app/openapi.yaml
@@ -2204,6 +2204,8 @@ paths:
                               transaction_draft_customer_number:
                                 type: integer
                                 nullable: true
+                              default_distribution_department_id:
+                                type: integer
                             additionalProperties: false
                         additionalProperties: true
         '400':
@@ -12738,7 +12740,7 @@ components:
       type: object
       properties:
         module: { type: string, enum: [economic] }
-        variable: { type: string, enum: [adminFeeMonthly, adminFeeOrder, feeProductId, invoiceLayoutNumber, paymentTermsNumber, transactionDraftCustomerNumber] }
+        variable: { type: string, enum: [adminFeeMonthly, adminFeeOrder, feeProductId, invoiceLayoutNumber, paymentTermsNumber, transactionDraftCustomerNumber, defaultDepartmentId] }
         type: { type: string, enum: [string, int] }
         value:
           oneOf:
diff --git a/services/nginx/app/routes/InvoicingPeriodRoute.php b/services/nginx/app/routes/InvoicingPeriodRoute.php
index 0995f2ea..e9fa78fd 100644
--- a/services/nginx/app/routes/InvoicingPeriodRoute.php
+++ b/services/nginx/app/routes/InvoicingPeriodRoute.php
@@ -3,6 +3,7 @@
 namespace routes;
 
 use classes\authentication;
+use classes\economic;
 use classes\economic_transfer_queue;
 use classes\economic_v2_distribution_service;
 use classes\economic_v2_versioning_service;
@@ -76,6 +77,12 @@ class InvoicingPeriodRoute
         return (string)($names[$customerNumber] ?? 'Unknown Customer');
     }
 
+    private static function getEconomicFallbackDepartmentId(): int
+    {
+        $department_id = (new economic())->getDefaultDistributionDepartmentId();
+        return $department_id > 0 ? $department_id : economic::DEFAULT_DISTRIBUTION_DEPARTMENT_ID;
+    }
+
     /**
      * Slack summaries are expensive on request latency, so they are opt-in.
      * Enable with query param `sendSlackSummary=1` or env `INVOICING_PERIOD_SEND_SLACK_SUMMARY=true`.
@@ -396,6 +403,7 @@ class InvoicingPeriodRoute
             'page' => $page,
             'limit' => $limit,
             'search' => trim((string)($parameters['search'] ?? '')),
+            'flagTab' => trim((string)($parameters['flagTab'] ?? 'all')),
             'includeRequiresAction' => self::parsePeriodBooleanOption(
                 $parameters['includeRequiresAction'] ?? null,
                 true
@@ -442,6 +450,12 @@ class InvoicingPeriodRoute
             $periodView = 'all';
         }
 
+        $typeCounts = self::summarizePeriodTypes($types);
+
+        if (!empty($options['flagTab'])) {
+            $types = self::filterPeriodTypesByFlagTab($types, (string)$options['flagTab']);
+        }
+
         $total = count($types[$periodView] ?? []);
         $limit = $options['limit'] ?? 100;
         $isAllLimit = $limit === 'all';
@@ -459,7 +473,7 @@ class InvoicingPeriodRoute
         }
 
         $period['types'] = $pagedTypes;
-        $period['type_counts'] = self::summarizePeriodTypes($types);
+        $period['type_counts'] = $typeCounts;
         $period['type_totals'] = self::summarizePeriodTypeTotals($types);
 
         return [
@@ -468,6 +482,7 @@ class InvoicingPeriodRoute
                 'page' => $page,
                 'per_page' => $perPage,
                 'total' => $total,
+                'total_pages' => $totalPages,
                 'search' => (string)($options['search'] ?? ''),
                 'filters' => [
                     'includeRequiresAction' => (bool)($options['includeRequiresAction'] ?? true),
@@ -481,6 +496,46 @@ class InvoicingPeriodRoute
         ];
     }
 
+    private static function filterPeriodTypesByFlagTab(array $types, string $flagTab): array
+    {
+        if (in_array($flagTab, ['all', 'filters', ''], true)) {
+            return $types;
+        }
+
+        foreach ($types as $viewName => $entries) {
+            $types[$viewName] = array_values(array_filter(
+                is_array($entries) ? $entries : [],
+                static function (array $customer) use ($flagTab): bool {
+                    $hasManual = false;
+                    $hasAutomatic = false;
+                    if (is_array($customer['flags'] ?? null)) {
+                        foreach ($customer['flags'] as $flag) {
+                            if (!empty($flag['order_id']) || !empty($flag['invoice_collection_id'])) {
+                                continue;
+                            }
+                            if ($flag['is_manual'] ?? ($flag['source'] ?? '') === 'manual') {
+                                $hasManual = true;
+                            } else {
+                                $hasAutomatic = true;
+                            }
+                        }
+                    }
+
+                    $tab = 'none';
+                    if ($hasManual) {
+                        $tab = 'red';
+                    } elseif ($hasAutomatic) {
+                        $tab = 'yellow';
+                    }
+
+                    return $tab === $flagTab;
+                }
+            ));
+        }
+
+        return $types;
+    }
+
     private static function ensurePeriodTypeKeys(array $types): array
     {
         foreach (self::periodTypeNames() as $typeName) {
@@ -1601,12 +1656,17 @@ class InvoicingPeriodRoute
         if (self::debug) echo "Fallback 3 not applied: No recent transactions found for customer\n";
         return false; // No recent transactions found
     }
-    // 4. If no departments are found, assign the subscription to the customers default department (e.g., department ID 1).
+    // 4. If no departments are found, assign the subscription to customer default department
+    //    or fallback to e-conomic default distribution department.
     private static function useDefaultDepartment(array &$customer, int $subscription_price): bool
     {
         if (self::debug) echo "Fallback 4: Using default department\n";
-        $default_department_id = (new users_o)->getUserByCustomerNumber((int)$customer['customer_number'])->getDefaultDepartment();
-        if (!empty($default_department_id)) {
+        $customer_default_department_id = (int)(new users_o)->getUserByCustomerNumber((int)$customer['customer_number'])->getDefaultDepartment();
+        $default_department_id = $customer_default_department_id > 0
+            ? $customer_default_department_id
+            : self::getEconomicFallbackDepartmentId();
+
+        if ($default_department_id > 0) {
             if (!isset($customer['meta']['subscription']['subscription_price_department_distribution'][$default_department_id])) {
                 $customer['meta']['subscription']['subscription_price_department_distribution'][$default_department_id] = 0;
             }
@@ -1696,6 +1756,15 @@ class InvoicingPeriodRoute
                         // Add the transaction amount to the department total
                         $department_totals[$department_id] += $transaction_original_price;
                     }
+                } else {
+                    $customer_default_department_id = (int)(new users_o())->getUserByCustomerNumber((int)$customer['customer_number'])->getDefaultDepartment();
+                    $fallback_department_id = $customer_default_department_id > 0
+                        ? $customer_default_department_id
+                        : self::getEconomicFallbackDepartmentId();
+
+                    if ($fallback_department_id > 0) {
+                        $department_totals[$fallback_department_id] = (float)$customer['meta']['fixed_pricing']['price'];
+                    }
                 }
 
                 $customer['meta']['fixed_pricing']['original_price'] = $original_price;
diff --git a/services/nginx/app/routes/authRoute.php b/services/nginx/app/routes/authRoute.php
index ec534bd0..f8d0ff6c 100644
--- a/services/nginx/app/routes/authRoute.php
+++ b/services/nginx/app/routes/authRoute.php
@@ -825,6 +825,7 @@ class authRoute
             [
                 'economic' => [
                     'transaction_draft_customer_number' => (new economic())->getTransactionDraftCustomerNumber(),
+                    'default_distribution_department_id' => (new economic())->getDefaultDistributionDepartmentId(),
                 ],
             ]
         );
diff --git a/services/nginx/app/routes/moduleWeatherAPIRoute.php b/services/nginx/app/routes/moduleWeatherAPIRoute.php
index e61a5cd9..d0465786 100644
--- a/services/nginx/app/routes/moduleWeatherAPIRoute.php
+++ b/services/nginx/app/routes/moduleWeatherAPIRoute.php
@@ -3,6 +3,7 @@
 namespace routes;
 
 use classes\authentication;
+use classes\redis;
 use classes\response;
 use classes\router;
 use classes\weatherapi;
@@ -155,6 +156,42 @@ class moduleWeatherAPIRoute
             'department_access_:id' => 'Access weather timeline for one or more specific departments',
         ]);
 
+        $this->get('/departments/weather/hours/details', function () {
+            global $response;
+            self::requirePermission('departments_weather_get');
+            $user = (new authentication())->get_user();
+            if (!$user) {
+                $response->error('Invalid session', 400);
+                return;
+            }
+
+            $department_ids = self::parseDepartmentIdsFromRequest();
+            foreach ($department_ids as $department_id) {
+                self::requireDepartmentAccess((string)$department_id);
+            }
+
+            $slot = self::parseDepartmentWeatherHourSlotFromRequest();
+            $departments = self::loadDepartmentsByIds($department_ids);
+            $departments_with_employees = $this->loadDepartmentWeatherEmployeeHourDetailsByDepartment($departments, $slot['slotStart']);
+            $department_context = count($department_ids) === 1 ? (string)$department_ids[0] : implode(',', $department_ids);
+            $total_hours = 0.0;
+            foreach ($departments_with_employees as $department) {
+                $total_hours += (float)($department['hours'] ?? 0.0);
+            }
+
+            (new logs_o())->add('modules_weatherapi', $department_context, 1, $user->id, 'DEPARTMENTS_WEATHER_HOUR_DETAILS_GET', 'Department weather hour details fetched');
+            $response->success([
+                'date' => $slot['date'],
+                'time' => $slot['time'],
+                'slot' => $slot['slotKey'],
+                'hours' => round($total_hours, 2),
+                'departments' => $departments_with_employees,
+            ], 200);
+        }, [
+            'departments_weather_get' => 'Get department weather employee hour details for one hour slot',
+            'department_access_:id' => 'Access weather hour details for one or more specific departments',
+        ]);
+
         $this->get('/departments/weather/targets', function () {
             global $response;
             self::requirePermission('departments_weather_targets_get');
@@ -819,6 +856,45 @@ class moduleWeatherAPIRoute
         ];
     }
 
+    private function parseDepartmentWeatherHourSlotFromRequest(): array
+    {
+        global $response;
+
+        self::requireParameters(['date', 'time']);
+        $date_value = self::getParameter('date');
+        $time_value = self::getParameter('time');
+        if (!is_string($date_value) || !is_string($time_value)) {
+            $response->error('Invalid type. Expected: string for date/time', 400);
+        }
+
+        $date = trim((string)$date_value);
+        $time = trim((string)$time_value);
+        self::requireDateFormat($date, self::FORMAT_DATE());
+        if (!preg_match('/^\d{2}:\d{2}(?::\d{2})?$/', $time)) {
+            $response->error('Invalid time format. Expected HH:MM', 400);
+        }
+
+        $time_parts = explode(':', $time);
+        $hour = (int)($time_parts[0] ?? -1);
+        $minute = (int)($time_parts[1] ?? -1);
+        if ($hour < 0 || $hour > 23 || $minute < 0 || $minute > 59) {
+            $response->error('Invalid time value', 400);
+        }
+
+        $normalized_time = sprintf('%02d:%02d', $hour, $minute);
+        $slot_start = new DateTime($date . ' ' . $normalized_time . ':00');
+        $slot_end = clone $slot_start;
+        $slot_end->add(new DateInterval('PT1H'));
+
+        return [
+            'date' => $date,
+            'time' => $normalized_time,
+            'slotKey' => $slot_start->format('Y-m-d H:00'),
+            'slotStart' => $slot_start,
+            'slotEnd' => $slot_end,
+        ];
+    }
+
     private function loadDepartmentsByIds(array $department_ids): array
     {
         $departments = [];
@@ -1688,6 +1764,329 @@ class moduleWeatherAPIRoute
         return round($hours, 2);
     }
 
+    /**
+     * @throws Exception
+     */
+    private function loadDepartmentWeatherEmployeeHourDetailsByDepartment(array $departments, DateTime $slot_start): array
+    {
+        try {
+            $workfeed = new workfeed();
+            $employeeNameCache = null;
+            if (defined('redis')) {
+                try {
+                    $employeeNameCache = new redis();
+                } catch (Exception) {
+                    $employeeNameCache = null;
+                }
+            }
+
+            $workfeed_department_ids_by_department = $this->resolveWorkfeedDepartmentIdsByDepartmentId($departments, $workfeed);
+            if ($workfeed_department_ids_by_department === []) {
+                return [];
+            }
+
+            $slot_end = clone $slot_start;
+            $slot_end->add(new DateInterval('PT1H'));
+            $query_start = clone $slot_start;
+            $query_start->sub(new DateInterval('P1D'));
+
+            $shifts_response = $workfeed->listShifts([
+                'startFrom' => $query_start->format(DateTime::ATOM),
+                'startTo' => $slot_end->format(DateTime::ATOM),
+            ]);
+            $shifts = self::normalizeWorkfeedCollection($shifts_response);
+            if ($shifts === []) {
+                return [];
+            }
+
+            $occurred_until = new DateTime();
+            $resolved_employee_names_by_id = [];
+            $details = [];
+            foreach ($departments as $department) {
+                $department_id = (int)($department->id ?? 0);
+                if ($department_id < 1) {
+                    continue;
+                }
+
+                $workfeed_department_ids = $workfeed_department_ids_by_department[$department_id] ?? null;
+                if ($workfeed_department_ids === null) {
+                    continue;
+                }
+
+                $employees = self::calculateWorkfeedEmployeeHoursForHourByEmployee(
+                    $shifts,
+                    $workfeed_department_ids,
+                    $slot_start,
+                    $occurred_until
+                );
+                $employees = $this->resolveMissingWorkfeedEmployeeNames(
+                    $employees,
+                    $employeeNameCache,
+                    $resolved_employee_names_by_id
+                );
+                if ($employees === []) {
+                    continue;
+                }
+
+                $department_hours = 0.0;
+                foreach ($employees as $employee) {
+                    $department_hours += (float)($employee['hours'] ?? 0.0);
+                }
+
+                $details[] = [
+                    'department_id' => $department_id,
+                    'department_name' => trim((string)($department->name ?? '')) ?: ('Department ' . $department_id),
+                    'hours' => round($department_hours, 2),
+                    'employees' => $employees,
+                ];
+            }
+
+            usort($details, static function (array $left, array $right): int {
+                return strcasecmp((string)($left['department_name'] ?? ''), (string)($right['department_name'] ?? ''));
+            });
+
+            return $details;
+        } catch (Exception) {
+            return [];
+        }
+    }
+
+    private function calculateWorkfeedEmployeeHoursForHourByEmployee(
+        array $shifts,
+        string|array $workfeed_department_ids,
+        DateTime $slot_start,
+        ?DateTime $occurred_until = null
+    ): array
+    {
+        $department_id_values = is_array($workfeed_department_ids) ? $workfeed_department_ids : [$workfeed_department_ids];
+        $department_id_lookup = [];
+        foreach ($department_id_values as $department_id_value) {
+            $normalized = trim((string)$department_id_value);
+            if ($normalized !== '') {
+                $department_id_lookup[$normalized] = true;
+            }
+        }
+        if ($department_id_lookup === []) {
+            return [];
+        }
+
+        $slot_end = clone $slot_start;
+        $slot_end->add(new DateInterval('PT1H'));
+        $slot_start_ts = $slot_start->getTimestamp();
+        $slot_end_ts = $slot_end->getTimestamp();
+        $occurred_until_ts = ($occurred_until ?? new DateTime())->getTimestamp();
+
+        $hours_by_employee_key = [];
+        foreach ($shifts as $shift) {
+            $shift_department_id = self::extractWorkfeedDepartmentId($shift);
+            if ($shift_department_id === null || !isset($department_id_lookup[$shift_department_id])) {
+                continue;
+            }
+
+            $timing = workfeed_shift_time_resolver::resolveShiftTiming($shift);
+            if ($timing === null) {
+                continue;
+            }
+
+            $shift_start_ts = $timing['actualStart']->getTimestamp();
+            $shift_end_ts = min($timing['actualEnd']->getTimestamp(), $occurred_until_ts);
+            if ($shift_end_ts <= $shift_start_ts) {
+                continue;
+            }
+
+            $overlap_start = max($slot_start_ts, $shift_start_ts);
+            $overlap_end = min($slot_end_ts, $shift_end_ts);
+            if ($overlap_end <= $overlap_start) {
+                continue;
+            }
+
+            $employee_identity = self::extractWorkfeedEmployeeIdentity($shift);
+            $employee_id = $employee_identity['id'];
+            $employee_name = self::normalizeShiftTextValue($employee_identity['name'] ?? null) ?? 'Unknown employee';
+            $employee_key = $employee_id ?? ('name:' . strtolower($employee_name));
+            if (!isset($hours_by_employee_key[$employee_key])) {
+                $hours_by_employee_key[$employee_key] = [
+                    'employee_id' => $employee_id,
+                    'employee_name' => $employee_name,
+                    'hours' => 0.0,
+                ];
+            }
+
+            $hours_by_employee_key[$employee_key]['hours'] += ($overlap_end - $overlap_start) / 3600;
+        }
+
+        foreach ($hours_by_employee_key as &$employee) {
+            $employee['hours'] = round((float)$employee['hours'], 2);
+        }
+        unset($employee);
+
+        usort($hours_by_employee_key, static function (array $left, array $right): int {
+            return strcasecmp((string)($left['employee_name'] ?? ''), (string)($right['employee_name'] ?? ''));
+        });
+
+        return array_values(array_filter($hours_by_employee_key, static function (array $employee): bool {
+            return (float)($employee['hours'] ?? 0.0) > 0;
+        }));
+    }
+
+    private function resolveMissingWorkfeedEmployeeNames(array $employees, ?redis $employee_name_cache, array &$resolved_names_by_employee_id): array
+    {
+        foreach ($employees as &$employee) {
+            $employee_id = self::normalizeShiftTextValue($employee['employee_id'] ?? null);
+            if ($employee_id === null) {
+                continue;
+            }
+
+            $employee_name = self::normalizeShiftTextValue($employee['employee_name'] ?? null);
+            if (!self::isMissingEmployeeDisplayName($employee_name, $employee_id)) {
+                continue;
+            }
+
+            if (!array_key_exists($employee_id, $resolved_names_by_employee_id)) {
+                $resolved_names_by_employee_id[$employee_id] = $this->fetchCachedWorkfeedEmployeeDisplayName(
+                    $employee_name_cache,
+                    $employee_id
+                );
+            }
+
+            $resolved_name = $resolved_names_by_employee_id[$employee_id] ?? null;
+            if ($resolved_name !== null) {
+                $employee['employee_name'] = $resolved_name;
+            }
+        }
+        unset($employee);
+
+        usort($employees, static function (array $left, array $right): int {
+            return strcasecmp((string)($left['employee_name'] ?? ''), (string)($right['employee_name'] ?? ''));
+        });
+
+        return $employees;
+    }
+
+    private function fetchCachedWorkfeedEmployeeDisplayName(?redis $employee_name_cache, string $employee_id): ?string
+    {
+        if ($employee_name_cache === null) {
+            return null;
+        }
+
+        try {
+            $employee_name = $employee_name_cache->get_workfeed_employee_name($employee_id);
+        } catch (Exception) {
+            return null;
+        }
+
+        return self::isMissingEmployeeDisplayName($employee_name, $employee_id) ? null : $employee_name;
+    }
+
+    private function isMissingEmployeeDisplayName(?string $employee_name, ?string $employee_id = null): bool
+    {
+        if ($employee_name === null) {
+            return true;
+        }
+
+        if ($employee_id !== null && strcasecmp($employee_name, 'Employee ' . $employee_id) === 0) {
+            return true;
+        }
+
+        return strcasecmp($employee_name, 'Unknown employee') === 0;
+    }
+
+    private function extractWorkfeedEmployeeIdentity(mixed $shift): array
+    {
+        $record = self::normalizeWorkfeedRecord($shift);
+
+        $employee_id = null;
+        foreach ([
+            'employeeID',
+            'employeeId',
+            'employee_id',
+            'employee.id',
+            'employee.employeeID',
+            'employee.employeeId',
+            'employee.employee_id',
+            'employee.uuid',
+            'employeeUUID',
+            'employee_uuid',
+            'user.id',
+            'userId',
+        ] as $path) {
+            $value = self::normalizeShiftTextValue(self::getNestedRecordValue($record, $path));
+            if ($value !== null) {
+                $employee_id = $value;
+                break;
+            }
+        }
+
+        $employee_name = null;
+        foreach ([
+            'employeeName',
+            'employee.name',
+            'employee.fullName',
+            'employee.full_name',
+            'employee.displayName',
+            'employee.display_name',
+            'name',
+            'fullName',
+            'full_name',
+            'displayName',
+            'display_name',
+            'user.name',
+            'user.fullName',
+            'user.full_name',
+            'user.displayName',
+            'user.display_name',
+        ] as $path) {
+            $value = self::normalizeShiftTextValue(self::getNestedRecordValue($record, $path));
+            if ($value !== null) {
+                $employee_name = $value;
+                break;
+            }
+        }
+
+        if ($employee_name === null) {
+            $first_name = self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.firstname'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.firstName'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.first_name'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'firstname'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'firstName'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'first_name'));
+            $last_name = self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.lastname'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.lastName'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'employee.last_name'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'lastname'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'lastName'))
+                ?? self::normalizeShiftTextValue(self::getNestedRecordValue($record, 'last_name'));
+
+            $combined_name = trim((string)($first_name ?? '') . ' ' . (string)($last_name ?? ''));
+            if ($combined_name !== '') {
+                $employee_name = $combined_name;
+            }
+        }
+
+        if ($employee_name === null) {
+            $employee_name = 'Unknown employee';
+        }
+
+        return [
+            'id' => $employee_id,
+            'name' => $employee_name,
+        ];
+    }
+
+    private function normalizeShiftTextValue(mixed $value): ?string
+    {
+        if (!is_scalar($value)) {
+            return null;
+        }
+
+        $normalized = trim((string)$value);
+        if ($normalized === '') {
+            return null;
+        }
+
+        return $normalized;
+    }
+
     /**
      * @throws Exception
      */
diff --git a/services/nginx/app/tests/Api/AuthApiTest.php b/services/nginx/app/tests/Api/AuthApiTest.php
index dd131a13..24d76508 100644
--- a/services/nginx/app/tests/Api/AuthApiTest.php
+++ b/services/nginx/app/tests/Api/AuthApiTest.php
@@ -77,6 +77,7 @@ it('returns the cached auth session payload for a valid token', function (): voi
         ]
     );
     api_fixtures()->setModuleConfig('economic', 'transactionDraftCustomerNumber', '445566', 'int');
+    api_fixtures()->setModuleConfig('economic', 'defaultDepartmentId', '75', 'int');
 
     $response = api_client()->get('/auth/session', $session['headers']);
 
@@ -92,13 +93,16 @@ it('returns the cached auth session payload for a valid token', function (): voi
         ->and($response->data()['permissions'])
         ->toContain('list_departments')
         ->and($response->data()['runtime_config']['economic']['transaction_draft_customer_number'] ?? null)
-        ->toBe(445566);
+        ->toBe(445566)
+        ->and($response->data()['runtime_config']['economic']['default_distribution_department_id'] ?? null)
+        ->toBe(75);
 });
 
 it('includes economic runtime config for uncached auth sessions', function (): void {
     api_test_covers('GET /auth/session', 'happy');
 
     api_fixtures()->setModuleConfig('economic', 'transactionDraftCustomerNumber', '556677', 'int');
+    api_fixtures()->setModuleConfig('economic', 'defaultDepartmentId', '65', 'int');
     $session = api_fixtures()->createUserSession(['list_departments'], [
         'display_name' => 'Fresh Session User',
     ]);
@@ -114,7 +118,9 @@ it('includes economic runtime config for uncached auth sessions', function (): v
         ->toBeArray()
         ->toHaveKey('customer_number', $session['user']['customer_number'])
         ->and($response->data()['runtime_config']['economic']['transaction_draft_customer_number'] ?? null)
-        ->toBe(556677);
+        ->toBe(556677)
+        ->and($response->data()['runtime_config']['economic']['default_distribution_department_id'] ?? null)
+        ->toBe(65);
 });
 
 it('rejects invalid auth session tokens', function (): void {
diff --git a/services/nginx/app/tests/Api/EconomicDraftCustomerApiTest.php b/services/nginx/app/tests/Api/EconomicDraftCustomerApiTest.php
index d23bcaff..b5bfd3ab 100644
--- a/services/nginx/app/tests/Api/EconomicDraftCustomerApiTest.php
+++ b/services/nginx/app/tests/Api/EconomicDraftCustomerApiTest.php
@@ -83,6 +83,33 @@ it('round-trips the draft customer config value through economic config updates'
     expect($clearedEntry['value'])->toBeNull();
 });
 
+it('round-trips the default distribution department config value through economic config updates', function (): void {
+    api_test_covers('POST /economic/config', 'happy');
+
+    api_fixtures()->preserveModuleConfig('economic', 'defaultDepartmentId');
+    $session = api_fixtures()->createUserSession(['economic_config']);
+
+    api_client()->post('/economic/config', [
+        'variable' => 'defaultDepartmentId',
+        'value' => 75,
+    ], $session['headers'])
+        ->assertStatus(200)
+        ->assertEnvelope()
+        ->assertSuccess();
+
+    $configuredResponse = api_client()->get('/economic/config?variable=defaultDepartmentId', $session['headers']);
+    $configuredResponse
+        ->assertStatus(200)
+        ->assertEnvelope()
+        ->assertSuccess();
+
+    $configuredEntry = economic_draft_customer_find_config_entry((array)$configuredResponse->data(), 'defaultDepartmentId');
+    expect($configuredEntry)
+        ->not->toBeNull()
+        ->and($configuredEntry['type'] ?? null)->toBe('int')
+        ->and($configuredEntry['value'] ?? null)->toBe(75);
+});
+
 it('rejects order draft exports for the configured draft customer', function (): void {
     api_test_covers('POST /economic/invoice/draft/export', 'failure');
 
diff --git a/services/nginx/app/tests/Unit/Invoicing/InvoicingPeriodRouteGuardsTest.php b/services/nginx/app/tests/Unit/Invoicing/InvoicingPeriodRouteGuardsTest.php
index f707b548..62becc2a 100644
--- a/services/nginx/app/tests/Unit/Invoicing/InvoicingPeriodRouteGuardsTest.php
+++ b/services/nginx/app/tests/Unit/Invoicing/InvoicingPeriodRouteGuardsTest.php
@@ -105,3 +105,16 @@ it('uses batched period transactions and keyed customer maps in the main period
         ->and($content)->toContain('invoicing_period_utils::filterPossibleDuplicates($ordersByRegistration, 86400)')
         ->and($content)->not->toContain('getOrdersWithPossibleDuplicates($dateFrom, $dateTo)');
 });
+
+it('falls back to configured e-conomic default department for missing customer default department in distributions', function (): void {
+    $content = file_get_contents(app_path('routes/InvoicingPeriodRoute.php'));
+
+    expect($content)->not->toBeFalse();
+    $content = (string)$content;
+
+    expect($content)
+        ->toContain('private static function getEconomicFallbackDepartmentId(): int')
+        ->and($content)->toContain('(new economic())->getDefaultDistributionDepartmentId()')
+        ->and($content)->toContain(': self::getEconomicFallbackDepartmentId();')
+        ->and($content)->toContain("\$department_totals[\$fallback_department_id] = (float)\$customer['meta']['fixed_pricing']['price'];");
+});
diff --git a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherPreloadCronWiringTest.php b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherPreloadCronWiringTest.php
index d8645dce..560ae8a1 100644
--- a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherPreloadCronWiringTest.php
+++ b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherPreloadCronWiringTest.php
@@ -21,3 +21,28 @@ it('registers and implements cron preloading for department weather cache', func
     expect($routeContent)->toContain('withCachedDepartmentWeatherTimeline');
     expect($routeContent)->toContain('getDepartmentWeatherCacheKey');
 });
+
+it('registers and implements cron warming for workfeed employee name cache', function (): void {
+    $cronContent = file_get_contents(app_path('cron/Cron.php'));
+    $routeContent = file_get_contents(app_path('routes/moduleWeatherAPIRoute.php'));
+
+    expect($cronContent)->not->toBeFalse();
+    expect($routeContent)->not->toBeFalse();
+
+    expect($cronContent)->toContain('WarmWorkfeedEmployeeNamesCron');
+    expect($cronContent)->toContain("'function' => 'WarmWorkfeedEmployeeNamesCron'");
+    expect($cronContent)->toContain("'interval' => 21600");
+    expect($cronContent)->toContain('WORKFEED_EMPLOYEE_NAME_CACHE_TTL');
+    expect($cronContent)->toContain('cache_workfeed_employee_name');
+    expect($cronContent)->toContain('normalizeWorkfeedEmployeeWarmupCollection');
+    expect($cronContent)->toContain('extractWorkfeedEmployeeWarmupIdentity');
+    expect($cronContent)->toContain('extractWorkfeedEmployeeWarmupIds');
+    expect($cronContent)->toContain('foreach ($employeeIds as $employeeId)');
+    expect($cronContent)->toContain('getWarmupRecordValueByPath($record, \'firstname\')');
+    expect($cronContent)->toContain('getWarmupRecordValueByPath($record, \'lastname\')');
+    expect($cronContent)->toContain('getWarmupRecordValueByPath($record, \'employee.firstname\')');
+    expect($cronContent)->toContain('getWarmupRecordValueByPath($record, \'employee.lastname\')');
+
+    expect($routeContent)->toContain('fetchCachedWorkfeedEmployeeDisplayName');
+    expect($routeContent)->toContain('get_workfeed_employee_name');
+});
diff --git a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherTargetsRouteWiringTest.php b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherTargetsRouteWiringTest.php
index 59332422..811e9372 100644
--- a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherTargetsRouteWiringTest.php
+++ b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherTargetsRouteWiringTest.php
@@ -11,6 +11,17 @@ it('registers department weather target routes with explicit read and manage per
     expect($content)->toContain("'department_access_:id'");
 });
 
+it('registers department weather hour details route with weather-read and department access checks', function (): void {
+    $routeFile = app_path('routes/moduleWeatherAPIRoute.php');
+    $content = file_get_contents($routeFile);
+
+    expect($content)->not->toBeFalse();
+    expect($content)->toContain('/departments/weather/hours/details');
+    expect($content)->toContain("requirePermission('departments_weather_get')");
+    expect($content)->toContain('parseDepartmentWeatherHourSlotFromRequest');
+    expect($content)->toContain('loadDepartmentWeatherEmployeeHourDetailsByDepartment');
+});
+
 it('persists department weather targets using canonical department variable keys', function (): void {
     $routeFile = app_path('routes/moduleWeatherAPIRoute.php');
     $content = file_get_contents($routeFile);
diff --git a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherWorkfeedHoursTest.php b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherWorkfeedHoursTest.php
index 42d9052e..d17f4991 100644
--- a/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherWorkfeedHoursTest.php
+++ b/services/nginx/app/tests/Unit/Workfeed/DepartmentWeatherWorkfeedHoursTest.php
@@ -2,6 +2,8 @@
 
 app_require('routes/moduleWeatherAPIRoute.php');
 
+use classes\workfeed;
+use classes\redis;
 use routes\moduleWeatherAPIRoute;
 
 function weather_route_invoke_private(moduleWeatherAPIRoute $route, string $method, array $args = []): mixed
@@ -52,6 +54,173 @@ it('calculates workfeed employee hours for the hour slot based on overlap', func
     expect($hours)->toBe(1.5);
 });
 
+it('calculates weather hour contributions grouped per employee for a slot', function (): void {
+    $route = new moduleWeatherAPIRoute();
+    $slot = new DateTime('2026-03-24T13:00:00+00:00');
+
+    $shifts = [
+        (object)[
+            'departmentID' => 'dep_1',
+            'employeeID' => 'emp_1',
+            'employeeName' => 'Alice',
+            'checkIn' => (object)['time' => '2026-03-24T13:00:00+00:00'],
+            'checkOut' => (object)['time' => '2026-03-24T14:00:00+00:00'],
+            'end' => '2026-03-24T14:00:00+00:00',
+        ],
+        (object)[
+            'departmentID' => 'dep_1',
+            'employeeID' => 'emp_1',
+            'employeeName' => 'Alice',
+            'checkIn' => (object)['time' => '2026-03-24T13:00:00+00:00'],
+            'checkOut' => (object)['time' => '2026-03-24T13:30:00+00:00'],
+            'end' => '2026-03-24T13:30:00+00:00',
+        ],
+        (object)[
+            'departmentID' => 'dep_1',
+            'employeeID' => 'emp_2',
+            'employeeName' => 'Bob',
+            'checkIn' => (object)['time' => '2026-03-24T13:15:00+00:00'],
+            'checkOut' => (object)['time' => '2026-03-24T14:00:00+00:00'],
+            'end' => '2026-03-24T14:00:00+00:00',
+        ],
+        (object)[
+            'departmentID' => 'dep_other',
+            'employeeID' => 'emp_3',
+            'employeeName' => 'Ignored',
+            'checkIn' => (object)['time' => '2026-03-24T13:00:00+00:00'],
+            'checkOut' => (object)['time' => '2026-03-24T14:00:00+00:00'],
+            'end' => '2026-03-24T14:00:00+00:00',
+        ],
+    ];
+
+    $details = weather_route_invoke_private($route, 'calculateWorkfeedEmployeeHoursForHourByEmployee', [$shifts, 'dep_1', $slot]);
+
+    expect($details)->toBe([
+        [
+            'employee_id' => 'emp_1',
+            'employee_name' => 'Alice',
+            'hours' => 1.5,
+        ],
+        [
+            'employee_id' => 'emp_2',
+            'employee_name' => 'Bob',
+            'hours' => 0.75,
+        ],
+    ]);
+});
+
+it('calculates weather hour contributions for canonical nested workfeed employee schema', function (): void {
+    $route = new moduleWeatherAPIRoute();
+    $slot = new DateTime('2026-03-24T13:00:00+00:00');
+
+    $shifts = [
+        (object)[
+            'departmentID' => 'dep_1',
+            'employee' => (object)[
+                'id' => '005FnnP0fHohybM1f3tx',
+                'firstname' => 'Michael',
+                'lastname' => 'Stenbæk Stampe',
+            ],
+            'checkIn' => (object)['time' => '2026-03-24T13:00:00+00:00'],
+            'checkOut' => (object)['time' => '2026-03-24T14:00:00+00:00'],
+            'end' => '2026-03-24T14:00:00+00:00',
+        ],
+    ];
+
+    $details = weather_route_invoke_private($route, 'calculateWorkfeedEmployeeHoursForHourByEmployee', [$shifts, 'dep_1', $slot]);
+
+    expect($details)->toBe([
+        [
+            'employee_id' => '005FnnP0fHohybM1f3tx',
+            'employee_name' => 'Michael Stenbæk Stampe',
+            'hours' => 1.0,
+        ],
+    ]);
+});
+
+it('extracts weather employee identity from supported shift payload shapes', function (): void {
+    $route = new moduleWeatherAPIRoute();
+
+    $fromTopLevel = weather_route_invoke_private($route, 'extractWorkfeedEmployeeIdentity', [
+        (object)[
+            'employeeID' => 'emp_1',
+            'employeeName' => 'Alice',
+        ],
+    ]);
+
+    $fromNested = weather_route_invoke_private($route, 'extractWorkfeedEmployeeIdentity', [
+        (object)[
+            'employee' => (object)[
+                'id' => 'emp_2',
+                'firstName' => 'Bob',
+                'lastName' => 'Builder',
+            ],
+        ],
+    ]);
+
+    $fromCanonicalNestedSchema = weather_route_invoke_private($route, 'extractWorkfeedEmployeeIdentity', [
+        (object)[
+            'employee' => (object)[
+                'id' => 'emp_3',
+                'firstname' => 'Charlie',
+                'lastname' => 'Day',
+            ],
+        ],
+    ]);
+
+    expect($fromTopLevel)->toBe([
+        'id' => 'emp_1',
+        'name' => 'Alice',
+    ]);
+    expect($fromNested)->toBe([
+        'id' => 'emp_2',
+        'name' => 'Bob Builder',
+    ]);
+    expect($fromCanonicalNestedSchema)->toBe([
+        'id' => 'emp_3',
+        'name' => 'Charlie Day',
+    ]);
+});
+
+it('uses an unknown employee label when no employee name is available', function (): void {
+    $route = new moduleWeatherAPIRoute();
+
+    $identity = weather_route_invoke_private($route, 'extractWorkfeedEmployeeIdentity', [
+        (object)[
+            'employeeID' => 'emp_99',
+        ],
+    ]);
+
+    expect($identity)->toBe([
+        'id' => 'emp_99',
+        'name' => 'Unknown employee',
+    ]);
+});
+
+it('resolves employee display name from cache when shift payload lacks a name', function (): void {
+    $route = new moduleWeatherAPIRoute();
+
+    $cache = new class([
+        'emp_42' => 'Jane Doe',
+    ]) extends redis {
+        private array $namesByEmployeeId;
+
+        public function __construct(array $namesByEmployeeId)
+        {
+            $this->namesByEmployeeId = $namesByEmployeeId;
+        }
+
+        public function get_workfeed_employee_name(string $employeeId): string|null
+        {
+            return $this->namesByEmployeeId[$employeeId] ?? null;
+        }
+    };
+
+    $resolved_name = weather_route_invoke_private($route, 'fetchCachedWorkfeedEmployeeDisplayName', [$cache, 'emp_42']);
+
+    expect($resolved_name)->toBe('Jane Doe');
+});
+
 it('extracts department id from supported workfeed shift shapes', function (): void {
     $route = new moduleWeatherAPIRoute();
 
@@ -133,6 +302,25 @@ it('does not count shifts without punches when checkIn/checkOut are null', funct
     expect($hours)->toBe(0.0);
 });
 
+it('counts checked-in shifts without checkOut up to occurredUntil', function (): void {
+    $route = new moduleWeatherAPIRoute();
+    $slot = new DateTime('2026-03-24T13:00:00+00:00');
+    $occurredUntil = new DateTime('2026-03-24T13:40:00+00:00');
+
+    $shifts = [
+        (object)[
+            'departmentID' => 'dep_1',
+            'checkIn' => (object)['time' => '2026-03-24T13:10:00+00:00'],
+            'checkOut' => null,
+            'end' => '2026-03-24T16:00:00+00:00',
+        ],
+    ];
+
+    $hours = weather_route_invoke_private($route, 'calculateWorkfeedEmployeeHoursForHour', [$shifts, 'dep_1', $slot, $occurredUntil]);
+
+    expect($hours)->toBe(0.5);
+});
+
 it('counts overtime minutes when a saved shift end extends past the approved original end', function (): void {
     $route = new moduleWeatherAPIRoute();
     $slot = new DateTime('2026-03-23T18:00:00+00:00');
@@ -220,7 +408,8 @@ it('caps current-slot hours to elapsed minutes and zeroes future slots', functio
     $shifts = [
         (object)[
             'departmentID' => 'dep_1',
-            'start' => '2026-03-24T13:00:00+00:00',
+            'checkIn' => (object)['time' => '2026-03-24T13:00:00+00:00'],
+            'checkOut' => null,
             'end' => '2026-03-24T15:00:00+00:00',
         ],
     ];