diff --git a/client/src/pages/BLReconciliation.tsx b/client/src/pages/BLReconciliation.tsx
index 4931724..43fc194 100644
--- a/client/src/pages/BLReconciliation.tsx
+++ b/client/src/pages/BLReconciliation.tsx
@@ -12,7 +12,7 @@ import { useStore } from "@/components/Layout";
 import { useAuthUnified } from "@/hooks/useAuthUnified";
 import { usePermissions } from "@shared/permissions";
 import { Pagination, usePagination } from "@/components/ui/pagination";
-import { Search, Edit, FileText, Settings, Eye, AlertTriangle, X, Check, Trash2, Ban, Filter, Upload } from "lucide-react";
+import { Search, Edit, FileText, Settings, Eye, AlertTriangle, X, Check, Trash2, Ban, Filter, Upload, CheckCircle, XCircle, Clock } from "lucide-react";
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
 import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
 import { Label } from "@/components/ui/label";
@@ -57,12 +57,99 @@ export default function BLReconciliation() {
   const [invoiceType, setInvoiceType] = useState<string>("");
   const [selectedFile, setSelectedFile] = useState<File | null>(null);
   const [isUploading, setIsUploading] = useState(false);
+  
+  // État pour le système de vérification de facture
+  const [verificationResults, setVerificationResults] = useState<Record<number, any>>({});
+  const [verifyingDeliveries, setVerifyingDeliveries] = useState<Set<number>>(new Set());
 
   // Récupérer les fournisseurs pour la logique automatique
   const { data: suppliers = [] } = useQuery<any[]>({
     queryKey: ['/api/suppliers'],
   });
 
+  // Fonction de vérification de facture
+  const verifyInvoiceMutation = useMutation({
+    mutationFn: async ({ deliveryId, invoiceReference, blNumber }: { deliveryId: number; invoiceReference?: string; blNumber?: string }) => {
+      const response = await apiRequest(`/api/deliveries/${deliveryId}/verify-invoice`, {
+        method: 'POST',
+        body: JSON.stringify({ invoiceReference, blNumber }),
+        headers: { 'Content-Type': 'application/json' }
+      });
+      
+      if (!response.ok) {
+        const error = await response.json();
+        throw new Error(error.message || 'Erreur de vérification');
+      }
+      
+      return response.json();
+    },
+    onSuccess: (result, variables) => {
+      setVerificationResults(prev => ({
+        ...prev,
+        [variables.deliveryId]: result
+      }));
+      
+      // Auto-remplissage si facture trouvée via BL
+      if (result.exists && result.matchType === 'bl_number' && result.invoiceReference) {
+        // Auto-remplir les champs dans la livraison
+        updateDeliveryMutation.mutate({
+          id: variables.deliveryId,
+          invoiceReference: result.invoiceReference,
+          invoiceAmount: result.invoiceAmount
+        });
+      }
+      
+      setVerifyingDeliveries(prev => {
+        const newSet = new Set(prev);
+        newSet.delete(variables.deliveryId);
+        return newSet;
+      });
+    },
+    onError: (error, variables) => {
+      console.error('Erreur vérification facture:', error);
+      setVerificationResults(prev => ({
+        ...prev,
+        [variables.deliveryId]: {
+          exists: false,
+          matchType: 'none',
+          errorMessage: error instanceof Error ? error.message : 'Erreur inconnue'
+        }
+      }));
+      
+      setVerifyingDeliveries(prev => {
+        const newSet = new Set(prev);
+        newSet.delete(variables.deliveryId);
+        return newSet;
+      });
+      
+      toast({
+        title: "Erreur de vérification",
+        description: error instanceof Error ? error.message : 'Erreur inconnue',
+        variant: "destructive",
+      });
+    }
+  });
+
+  // Fonction pour déclencher la vérification
+  const handleVerifyInvoice = (delivery: any) => {
+    if (!delivery.group?.webhookUrl) {
+      toast({
+        title: "Vérification non disponible",
+        description: "Ce magasin n'a pas de configuration NocoDB",
+        variant: "destructive",
+      });
+      return;
+    }
+    
+    setVerifyingDeliveries(prev => new Set(prev).add(delivery.id));
+    
+    verifyInvoiceMutation.mutate({
+      deliveryId: delivery.id,
+      invoiceReference: delivery.invoiceReference,
+      blNumber: delivery.blNumber
+    });
+  };
+
   // Récupérer les livraisons validées avec BL
   const { data: deliveriesWithBL = [], isLoading } = useQuery({
     queryKey: ['/api/deliveries/bl', selectedStoreId],
@@ -536,9 +623,40 @@ export default function BLReconciliation() {
                               </div>
                             </td>
                             <td className="px-6 py-4 whitespace-nowrap">
-                              <div className={`text-sm ${delivery.reconciled !== true ? 'font-medium text-gray-900' : 'text-gray-600'}`}>
-                                {delivery.invoiceReference || (
-                                  <span className="text-gray-400 italic">Non renseigné</span>
+                              <div className="flex items-center space-x-2">
+                                <div className={`text-sm ${delivery.reconciled !== true ? 'font-medium text-gray-900' : 'text-gray-600'}`}>
+                                  {delivery.invoiceReference || (
+                                    <span className="text-gray-400 italic">Non renseigné</span>
+                                  )}
+                                </div>
+                                
+                                {/* Icône de vérification de facture */}
+                                {delivery.group?.webhookUrl && (
+                                  <div className="flex items-center">
+                                    {verifyingDeliveries.has(delivery.id) ? (
+                                      <Clock className="h-4 w-4 text-blue-500 animate-spin" title="Vérification en cours..." />
+                                    ) : verificationResults[delivery.id] ? (
+                                      verificationResults[delivery.id].exists ? (
+                                        <CheckCircle 
+                                          className="h-4 w-4 text-green-500 cursor-help" 
+                                          title={`Facture vérifiée (${verificationResults[delivery.id].matchType === 'invoice_ref' ? 'référence directe' : 'via BL'})`}
+                                        />
+                                      ) : (
+                                        <XCircle 
+                                          className="h-4 w-4 text-red-500 cursor-help" 
+                                          title={`Facture non trouvée: ${verificationResults[delivery.id].errorMessage || 'Aucune correspondance'}`}
+                                        />
+                                      )
+                                    ) : (
+                                      <button
+                                        onClick={() => handleVerifyInvoice(delivery)}
+                                        className="h-4 w-4 text-gray-400 hover:text-blue-500 transition-colors"
+                                        title="Cliquer pour vérifier la facture"
+                                      >
+                                        <Search className="h-4 w-4" />
+                                      </button>
+                                    )}
+                                  </div>
                                 )}
                               </div>
                             </td>
diff --git a/server/invoiceVerification.ts b/server/invoiceVerification.ts
new file mode 100644
index 0000000..99a3ab9
--- /dev/null
+++ b/server/invoiceVerification.ts
@@ -0,0 +1,277 @@
+import { db } from './db.js';
+import { nocodbConfig, invoiceVerificationCache, groups } from '@shared/schema';
+import { eq, and, desc } from 'drizzle-orm';
+
+interface InvoiceVerificationResult {
+  exists: boolean;
+  matchType: 'invoice_ref' | 'bl_number' | 'none';
+  invoiceReference?: string;
+  invoiceAmount?: string;
+  supplierMatch: boolean;
+  errorMessage?: string;
+  apiCallTime?: number;
+  cacheHit: boolean;
+}
+
+interface NocodbInvoice {
+  Id: number;
+  [key: string]: any; // Pour les colonnes dynamiques
+}
+
+class InvoiceVerificationService {
+  private async getNocodbConfig(): Promise<any> {
+    const [config] = await db
+      .select()
+      .from(nocodbConfig)
+      .where(eq(nocodbConfig.isActive, true))
+      .limit(1);
+    
+    if (!config) {
+      throw new Error('Aucune configuration NocoDB active trouvée');
+    }
+    
+    return config;
+  }
+
+  private generateCacheKey(groupId: number, invoiceRef: string, supplierName: string): string {
+    return `${groupId}:${invoiceRef}:${supplierName}`.toLowerCase();
+  }
+
+  private async getCachedResult(cacheKey: string): Promise<InvoiceVerificationResult | null> {
+    try {
+      const [cached] = await db
+        .select()
+        .from(invoiceVerificationCache)
+        .where(and(
+          eq(invoiceVerificationCache.cacheKey, cacheKey),
+          // Cache valide pour 24 heures
+          eq(invoiceVerificationCache.expiresAt, new Date(Date.now() + 24 * 60 * 60 * 1000))
+        ))
+        .limit(1);
+
+      if (cached && new Date() < new Date(cached.expiresAt)) {
+        console.log('🎯 Cache hit pour:', cacheKey);
+        return {
+          exists: cached.exists,
+          matchType: cached.matchType as any,
+          invoiceReference: cached.invoiceReference,
+          supplierMatch: !!cached.supplierName,
+          cacheHit: true,
+          apiCallTime: cached.apiCallTime || 0
+        };
+      }
+    } catch (error) {
+      console.error('❌ Erreur lors de la lecture du cache:', error);
+    }
+    
+    return null;
+  }
+
+  private async setCachedResult(
+    cacheKey: string, 
+    groupId: number, 
+    result: InvoiceVerificationResult,
+    invoiceRef: string,
+    supplierName: string
+  ): Promise<void> {
+    try {
+      await db.insert(invoiceVerificationCache).values({
+        cacheKey,
+        groupId,
+        invoiceReference: invoiceRef,
+        supplierName,
+        exists: result.exists,
+        matchType: result.matchType,
+        errorMessage: result.errorMessage,
+        cacheHit: false,
+        apiCallTime: result.apiCallTime || 0,
+        expiresAt: new Date(Date.now() + 24 * 60 * 60 * 1000) // 24h
+      });
+      
+      console.log('💾 Résultat mis en cache:', cacheKey);
+    } catch (error) {
+      console.error('❌ Erreur lors de la mise en cache:', error);
+    }
+  }
+
+  private async searchInNocodb(
+    config: any, 
+    group: any, 
+    searchValue: string, 
+    searchType: 'invoice' | 'bl'
+  ): Promise<{ found: boolean; invoice?: any }> {
+    const startTime = Date.now();
+    
+    try {
+      // Définir la colonne de recherche selon le groupe
+      const searchColumn = searchType === 'invoice' 
+        ? group.invoiceColumnName 
+        : group.nocodbBlColumnName;
+      
+      if (!searchColumn) {
+        throw new Error(`Colonne ${searchType} non configurée pour ce magasin`);
+      }
+
+      const url = `${config.baseUrl}/api/v2/tables/${group.nocodbTableName}/records`;
+      const params = new URLSearchParams({
+        where: `(${searchColumn},eq,${searchValue})`
+      });
+
+      const response = await fetch(`${url}?${params}`, {
+        headers: {
+          'xc-token': config.apiToken,
+          'Content-Type': 'application/json'
+        }
+      });
+
+      if (!response.ok) {
+        throw new Error(`NocoDB API error: ${response.status} ${response.statusText}`);
+      }
+
+      const data = await response.json();
+      const invoices = data.list || [];
+      
+      console.log(`🔍 Recherche NocoDB ${searchType}:`, {
+        searchValue,
+        found: invoices.length > 0,
+        table: group.nocodbTableName,
+        column: searchColumn,
+        apiTime: Date.now() - startTime
+      });
+
+      return {
+        found: invoices.length > 0,
+        invoice: invoices[0] || null
+      };
+    } catch (error) {
+      console.error(`❌ Erreur recherche NocoDB ${searchType}:`, error);
+      throw error;
+    }
+  }
+
+  async verifyInvoiceReference(
+    invoiceRef: string,
+    blNumber: string,
+    supplierName: string,
+    groupId: number
+  ): Promise<InvoiceVerificationResult> {
+    const startTime = Date.now();
+    
+    try {
+      // 1. Vérifier le cache d'abord
+      const cacheKey = this.generateCacheKey(groupId, invoiceRef, supplierName);
+      const cachedResult = await this.getCachedResult(cacheKey);
+      if (cachedResult) {
+        return cachedResult;
+      }
+
+      // 2. Récupérer la configuration NocoDB
+      const config = await this.getNocodbConfig();
+      
+      // 3. Récupérer les informations du groupe
+      const [group] = await db
+        .select()
+        .from(groups)
+        .where(eq(groups.id, groupId))
+        .limit(1);
+      
+      if (!group || !group.nocodbTableName) {
+        throw new Error('Configuration NocoDB manquante pour ce magasin');
+      }
+
+      let result: InvoiceVerificationResult = {
+        exists: false,
+        matchType: 'none',
+        supplierMatch: false,
+        cacheHit: false,
+        apiCallTime: 0
+      };
+
+      // 4. Recherche primaire : par référence facture
+      if (invoiceRef && invoiceRef.trim()) {
+        const searchResult = await this.searchInNocodb(config, group, invoiceRef, 'invoice');
+        
+        if (searchResult.found) {
+          // Vérifier la correspondance du fournisseur
+          const supplierColumn = group.nocodbSupplierColumnName;
+          const invoiceSupplier = supplierColumn ? searchResult.invoice[supplierColumn] : '';
+          const supplierMatch = !supplierColumn || 
+            invoiceSupplier.toLowerCase().includes(supplierName.toLowerCase()) ||
+            supplierName.toLowerCase().includes(invoiceSupplier.toLowerCase());
+
+          if (supplierMatch) {
+            result = {
+              exists: true,
+              matchType: 'invoice_ref',
+              invoiceReference: invoiceRef,
+              invoiceAmount: group.nocodbAmountColumnName ? 
+                searchResult.invoice[group.nocodbAmountColumnName] : undefined,
+              supplierMatch: true,
+              cacheHit: false,
+              apiCallTime: Date.now() - startTime
+            };
+          } else {
+            result.errorMessage = 'Référence trouvée mais fournisseur ne correspond pas';
+          }
+        }
+      }
+
+      // 5. Recherche secondaire : par numéro de BL si pas de résultat avec la facture
+      if (!result.exists && blNumber && blNumber.trim()) {
+        const searchResult = await this.searchInNocodb(config, group, blNumber, 'bl');
+        
+        if (searchResult.found) {
+          // Vérifier la correspondance du fournisseur
+          const supplierColumn = group.nocodbSupplierColumnName;
+          const invoiceSupplier = supplierColumn ? searchResult.invoice[supplierColumn] : '';
+          const supplierMatch = !supplierColumn || 
+            invoiceSupplier.toLowerCase().includes(supplierName.toLowerCase()) ||
+            supplierName.toLowerCase().includes(invoiceSupplier.toLowerCase());
+
+          if (supplierMatch) {
+            const foundInvoiceRef = group.invoiceColumnName ? 
+              searchResult.invoice[group.invoiceColumnName] : '';
+            const foundAmount = group.nocodbAmountColumnName ? 
+              searchResult.invoice[group.nocodbAmountColumnName] : '';
+
+            result = {
+              exists: true,
+              matchType: 'bl_number',
+              invoiceReference: foundInvoiceRef,
+              invoiceAmount: foundAmount,
+              supplierMatch: true,
+              cacheHit: false,
+              apiCallTime: Date.now() - startTime
+            };
+          } else {
+            result.errorMessage = 'BL trouvé mais fournisseur ne correspond pas';
+          }
+        }
+      }
+
+      // Si rien trouvé
+      if (!result.exists) {
+        result.apiCallTime = Date.now() - startTime;
+        result.errorMessage = result.errorMessage || 'Aucune correspondance trouvée';
+      }
+
+      // 6. Mettre en cache le résultat
+      await this.setCachedResult(cacheKey, groupId, result, invoiceRef, supplierName);
+
+      return result;
+
+    } catch (error) {
+      console.error('❌ Erreur vérification facture:', error);
+      return {
+        exists: false,
+        matchType: 'none',
+        supplierMatch: false,
+        cacheHit: false,
+        errorMessage: error instanceof Error ? error.message : 'Erreur inconnue',
+        apiCallTime: Date.now() - startTime
+      };
+    }
+  }
+}
+
+export const invoiceVerificationService = new InvoiceVerificationService();
\ No newline at end of file
diff --git a/server/routes.ts b/server/routes.ts
index 537fb0f..004fc76 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -37,6 +37,7 @@ import {
 } from "@shared/schema";
 import { hasPermission } from "@shared/permissions";
 import { z } from "zod";
+import { invoiceVerificationService } from "./invoiceVerification.js";
 
 export async function registerRoutes(app: Express): Promise<Server> {
   // Health check endpoint for Docker
@@ -831,6 +832,56 @@ export async function registerRoutes(app: Express): Promise<Server> {
     }
   });
 
+  // Route de vérification de facture NocoDB
+  app.post('/api/deliveries/:id/verify-invoice', isAuthenticated, async (req: any, res) => {
+    try {
+      const user = await storage.getUserWithGroups(req.user.claims ? req.user.claims.sub : req.user.id);
+      if (!user) {
+        return res.status(404).json({ message: "User not found" });
+      }
+
+      const deliveryId = parseInt(req.params.id);
+      const delivery = await storage.getDelivery(deliveryId);
+      
+      if (!delivery) {
+        return res.status(404).json({ message: "Delivery not found" });
+      }
+
+      // Check permissions
+      if (!hasPermission(user.role, 'deliveries', 'view')) {
+        return res.status(403).json({ message: "Insufficient permissions" });
+      }
+
+      if (user.role !== 'admin') {
+        const userGroupIds = user.userGroups?.map((ug: any) => ug.groupId) || [];
+        if (!userGroupIds.includes(delivery.groupId)) {
+          return res.status(403).json({ message: "Access denied to this group" });
+        }
+      }
+
+      const { invoiceReference, blNumber } = req.body;
+      
+      if (!delivery.supplier || !delivery.group) {
+        return res.status(400).json({ message: "Delivery missing supplier or group information" });
+      }
+
+      const result = await invoiceVerificationService.verifyInvoiceReference(
+        invoiceReference || delivery.invoiceReference || '',
+        blNumber || delivery.blNumber || '',
+        delivery.supplier.name,
+        delivery.groupId
+      );
+
+      res.json(result);
+    } catch (error) {
+      console.error("Error verifying invoice:", error);
+      res.status(500).json({ 
+        message: "Failed to verify invoice",
+        error: error instanceof Error ? error.message : 'Unknown error'
+      });
+    }
+  });
+
   app.post('/api/deliveries/:id/validate', isAuthenticated, async (req: any, res) => {
     try {
       const user = await storage.getUserWithGroups(req.user.claims ? req.user.claims.sub : req.user.id);
diff --git a/shared/schema.ts b/shared/schema.ts
index 6848689..7f49911 100644
--- a/shared/schema.ts
+++ b/shared/schema.ts
@@ -152,7 +152,24 @@ export const nocodbConfig = pgTable("nocodb_config", {
   apiToken: varchar("api_token").notNull(), // Personal API Token
   description: text("description"), // Description de la configuration
   isActive: boolean("is_active").default(true), // Configuration active ou non
-  createdBy: varchar("created_by").notNull(),
+  createdBy: varchar("created_by"),
+  createdAt: timestamp("created_at").defaultNow(),
+  updatedAt: timestamp("updated_at").defaultNow(),
+});
+
+// Cache de vérification des factures pour éviter les re-vérifications
+export const invoiceVerificationCache = pgTable("invoice_verification_cache", {
+  id: serial("id").primaryKey(),
+  cacheKey: varchar("cache_key", { length: 255 }).notNull(), // Clé unique de cache
+  groupId: integer("group_id").notNull(), // ID du magasin
+  invoiceReference: varchar("invoice_reference", { length: 255 }).notNull(), // Référence facture
+  supplierName: varchar("supplier_name", { length: 255 }), // Nom du fournisseur
+  exists: boolean("exists").notNull(), // Facture trouvée ou non
+  matchType: varchar("match_type", { length: 50 }).notNull(), // Type de correspondance (invoice_ref, bl_number)
+  errorMessage: text("error_message"), // Message d'erreur si applicable
+  cacheHit: boolean("cache_hit").default(false), // Cache hit ou non
+  apiCallTime: integer("api_call_time"), // Temps d'appel API en ms
+  expiresAt: timestamp("expires_at").notNull(), // Date d'expiration du cache
   createdAt: timestamp("created_at").defaultNow(),
   updatedAt: timestamp("updated_at").defaultNow(),
 });
@@ -444,6 +461,12 @@ export const insertNocodbConfigSchema = createInsertSchema(nocodbConfig).omit({
   updatedAt: true,
 });
 
+export const insertInvoiceVerificationCacheSchema = createInsertSchema(invoiceVerificationCache).omit({
+  id: true,
+  createdAt: true,
+  updatedAt: true,
+});
+
 export const insertCustomerOrderSchema = createInsertSchema(customerOrders).omit({
   id: true,
   createdAt: true,