diff --git a/attached_assets/Pasted-Search-Filter-Lines-100-Actions-Fetching-all-deliveries-SERVER-Fetc-1756808253935_1756808253935.txt b/attached_assets/Pasted-Search-Filter-Lines-100-Actions-Fetching-all-deliveries-SERVER-Fetc-1756808253935_1756808253935.txt
new file mode 100644
index 0000000..73ad04c
--- /dev/null
+++ b/attached_assets/Pasted-Search-Filter-Lines-100-Actions-Fetching-all-deliveries-SERVER-Fetc-1756808253935_1756808253935.txt
@@ -0,0 +1,209 @@
+Search
+Filter...
+Lines
+100
+Actions
+ 
+ 
+ 
+      
+Fetching all deliveries
+
+📢 [SERVER] Fetching announcements for user: admin_local environment: production
+
+Customer Orders API called with: { groupIds: [ 2 ], userRole: 'admin' }
+
+🔗 PRODUCTION: getOrders() récupéré 29 commandes avec relations
+
+Orders returned: 29 items
+
+GET /api/orders 200 in 95ms
+
+❌ PRODUCTION: Delivery #127 (store 2) linked to order #81 (store 1) - STORE MISMATCH DETECTED!
+
+Customer Orders returned: 42 items
+
+🔗 PRODUCTION: getDeliveries() récupéré 59 livraisons avec relations
+
+Deliveries returned: 59 items
+
+📢 [SERVER] User found: { username: 'admin', role: 'admin' }
+
+🎯 [PRODUCTION] Using PostgreSQL DASHBOARD_MESSAGES table
+
+GET /api/customer-orders 304 in 109ms
+
+GET /api/deliveries 304 in 111ms
+
+🔍 [PRODUCTION] Raw messages from DB: 2 items: [
+
+  {
+
+    id: 16,
+
+    title: 'Mise à jour Prix',
+
+    content: 'Merci de mettre vos prix a jour tous les matins, certain magasin ne le font pas.',
+
+    type: 'success',
+
+    storeId: null,
+
+    createdBy: 'admin',
+
+    createdAt: 2025-08-18T10:45:08.585Z
+
+  },
+
+  {
+
+    id: 8,
+
+    title: 'Bon de Livraison',
+
+    content: 'Lorsque vous rentrez un numéro de bon de livraison, faite le a l identique, même les majuscules. Pour My candy Shop, prendre le numéro de commande.',
+
+    type: 'info',
+
+    storeId: null,
+
+    createdBy: 'admin_local',
+
+    createdAt: 2025-08-07T11:04:38.123Z
+
+  }
+
+]
+
+🔍 [PRODUCTION] Looking for user with username: admin
+
+🔍 [PRODUCTION] Looking for user with username: admin_local
+
+GET /api/groups 304 in 58ms
+
+🔍 [PRODUCTION] User search result: Found
+
+❌ [PRODUCTION] User not found with username: admin_local
+
+🔍 [PRODUCTION] User search result: Not found
+
+🎯 [PRODUCTION] Found announcements: 2
+
+GET /api/announcements 304 in 117ms
+
+GET /api/user 304 in 4ms
+
+GET /api/users 304 in 15ms
+
+HEAD /api/health 200 in 0ms
+
+📝 POST /api/tasks - Received data: {
+
+  originalBody: {
+
+    title: 'test',
+
+    description: 'test',
+
+    priority: 'medium',
+
+    status: 'pending',
+
+    assignedTo: 'Non assigné',
+
+    startDate: '2025-09-02',
+
+    dueDate: '2025-09-07',
+
+    groupId: 2,
+
+    createdBy: 'admin'
+
+  },
+
+  processedData: {
+
+    title: 'test',
+
+    description: 'test',
+
+    priority: 'medium',
+
+    status: 'pending',
+
+    assignedTo: 'Non assigné',
+
+    startDate: '2025-09-02',
+
+    dueDate: '2025-09-07',
+
+    groupId: 2,
+
+    createdBy: 'admin_local'
+
+  },
+
+  dueDate: '2025-09-07',
+
+  dueDateType: 'string',
+
+  dueDateValue: '2025-09-07'
+
+}
+
+💾 DatabaseStorage.createTask - Input: {
+
+  taskData: {
+
+    title: 'test',
+
+    description: 'test',
+
+    priority: 'medium',
+
+    status: 'pending',
+
+    assignedTo: 'Non assigné',
+
+    startDate: '2025-09-02',
+
+    dueDate: '2025-09-07',
+
+    groupId: 2,
+
+    createdBy: 'admin_local'
+
+  },
+
+  dueDate: '2025-09-07',
+
+  dueDateType: 'string',
+
+  dueDateISO: '2025-09-07'
+
+}
+
+Error creating task: TypeError: value.toISOString is not a function
+
+    at PgTimestamp.mapToDriverValue (file:///app/node_modules/drizzle-orm/pg-core/columns/timestamp.js:34:18)
+
+    at file:///app/node_modules/drizzle-orm/sql/sql.js:131:73
+
+    at Array.map (<anonymous>)
+
+    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:73:32)
+
+    at file:///app/node_modules/drizzle-orm/sql/sql.js:92:21
+
+    at Array.map (<anonymous>)
+
+    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:73:32)
+
+    at file:///app/node_modules/drizzle-orm/sql/sql.js:95:21
+
+    at Array.map (<anonymous>)
+
+    at SQL.buildQueryFromSourceParams (file:///app/node_modules/drizzle-orm/sql/sql.js:73:32)
+
+POST /api/tasks 500 in 7ms
+
diff --git a/attached_assets/{12FE7BB1-8E1A-49E2-B470-5CE14459FA62}_1756808242895.png b/attached_assets/{12FE7BB1-8E1A-49E2-B470-5CE14459FA62}_1756808242895.png
new file mode 100644
index 0000000..fdaa244
Binary files /dev/null and b/attached_assets/{12FE7BB1-8E1A-49E2-B470-5CE14459FA62}_1756808242895.png differ
diff --git a/client/src/pages/TasksSimplified.tsx b/client/src/pages/TasksSimplified.tsx
index cfb9a1b..c043387 100644
--- a/client/src/pages/TasksSimplified.tsx
+++ b/client/src/pages/TasksSimplified.tsx
@@ -52,7 +52,7 @@ export default function TasksSimplified() {
     queryFn: () => {
       const params = new URLSearchParams();
       if (selectedStoreId) {
-        params.append('storeId', selectedStoreId);
+        params.append('storeId', selectedStoreId.toString());
       }
       return fetch(`/api/tasks?${params.toString()}`).then(res => res.json());
     },
@@ -60,7 +60,7 @@ export default function TasksSimplified() {
   });
 
   // Récupération des magasins
-  const { data: stores = [] } = useQuery({
+  const { data: stores = [] } = useQuery<any[]>({
     queryKey: ["/api/groups"],
     enabled: !!user,
   });
diff --git a/server/storage.ts b/server/storage.ts
index 66927ec..d3625ee 100644
--- a/server/storage.ts
+++ b/server/storage.ts
@@ -1791,7 +1791,14 @@ export class DatabaseStorage implements IStorage {
       dueDateISO: taskData.dueDate instanceof Date ? taskData.dueDate.toISOString() : taskData.dueDate
     });
     
-    const [task] = await db.insert(tasks).values(taskData).returning();
+    // Convert string dates to Date objects for Drizzle PostgreSQL
+    const processedTaskData = {
+      ...taskData,
+      startDate: taskData.startDate ? new Date(taskData.startDate) : null,
+      dueDate: taskData.dueDate ? new Date(taskData.dueDate) : null,
+    };
+    
+    const [task] = await db.insert(tasks).values(processedTaskData).returning();
     
     console.log('💾 DatabaseStorage.createTask - Result:', {
       taskId: task.id,
@@ -1840,8 +1847,8 @@ export class DatabaseStorage implements IStorage {
       if (taskData.dueDate === '' || taskData.dueDate === null) {
         cleanData.dueDate = null;
       } else {
-        // due_date est un date en PostgreSQL - on passe la chaîne directement
-        cleanData.dueDate = taskData.dueDate;
+        // due_date est un timestamp en PostgreSQL - convertir en Date object
+        cleanData.dueDate = new Date(taskData.dueDate);
       }
     }