diff --git a/server/routes.ts b/server/routes.ts
index 75d4a6e..5e046d0 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -730,15 +730,8 @@ export async function registerRoutes(app: Express): Promise<Server> {
       console.log('✅ Delivery updated successfully:', { id, updatedDelivery });
       
       // SYNCHRONISATION AUTOMATIQUE : Si livraison devient "delivered", marquer la commande associée comme "delivered"
-      if (data.status === 'delivered' && updatedDelivery.orderId) {
-        try {
-          console.log(`🔄 Auto-sync: Delivery #${id} marked as delivered, updating order #${updatedDelivery.orderId}`);
-          await storage.updateOrder(updatedDelivery.orderId, { status: 'delivered' });
-          console.log(`✅ Auto-sync: Order #${updatedDelivery.orderId} automatically marked as delivered`);
-        } catch (error) {
-          console.error(`❌ Auto-sync failed for order #${updatedDelivery.orderId}:`, error);
-        }
-      }
+      // MAIS seulement après validation explicite (pas juste mise à jour status)
+      // Cette sync sera gérée dans validateDelivery endpoint uniquement
 
       // AUTO-VALIDATION RAPPROCHEMENT AUTOMATIQUE : Si fournisseur en mode automatique, livraison delivered + BL → auto-valider
       if (data.status === 'delivered' || data.blNumber) {
@@ -780,11 +773,23 @@ export async function registerRoutes(app: Express): Promise<Server> {
         return res.status(404).json({ message: "User not found" });
       }
 
+      console.log('🚛 Creating delivery with data:', req.body);
+
+      // Traiter les données pour orderId - "none" devient null
+      const processedBody = { ...req.body };
+      if (processedBody.orderId === "none" || processedBody.orderId === "") {
+        processedBody.orderId = null;
+      } else if (processedBody.orderId) {
+        processedBody.orderId = parseInt(processedBody.orderId);
+      }
+
       const data = insertDeliverySchema.parse({
-        ...req.body,
+        ...processedBody,
         createdBy: user.id,
       });
 
+      console.log('🚛 Processed delivery data:', data);
+
       // Check if user has access to the group
       if (user.role !== 'admin') {
         const userGroupIds = user.userGroups.map(ug => ug.groupId);
@@ -794,6 +799,14 @@ export async function registerRoutes(app: Express): Promise<Server> {
       }
 
       const delivery = await storage.createDelivery(data);
+      
+      // Log de liaison avec commande
+      if (data.orderId) {
+        console.log(`🔗 Delivery #${delivery.id} linked to order #${data.orderId}`);
+      } else {
+        console.log(`🚛 Delivery #${delivery.id} created without order link`);
+      }
+      
       res.json(delivery);
     } catch (error) {
       console.error("Error creating delivery:", error);
diff --git a/server/storage.ts b/server/storage.ts
index e067380..c108fb0 100644
--- a/server/storage.ts
+++ b/server/storage.ts
@@ -1677,11 +1677,25 @@ export class MemStorage implements IStorage {
     const delivery: Delivery = {
       id,
       ...deliveryData,
-      status: 'pending',
+      status: 'planned', // Livraisons créées sont automatiquement planifiées
       createdAt: new Date(),
       updatedAt: new Date(),
     };
     this.deliveries.set(id, delivery);
+    
+    // Si une commande est liée, la marquer comme "planned" (pas delivered!)
+    if (deliveryData.orderId) {
+      try {
+        const order = this.orders.get(deliveryData.orderId);
+        if (order && order.status === 'pending') {
+          console.log(`🔗 Delivery #${id} linked to order #${deliveryData.orderId}, updating order status to 'planned'`);
+          await this.updateOrder(deliveryData.orderId, { status: 'planned' });
+        }
+      } catch (error) {
+        console.error(`❌ Failed to update order #${deliveryData.orderId} status to planned:`, error);
+      }
+    }
+    
     return delivery;
   }