diff --git a/client/src/components/AnnouncementCard.tsx b/client/src/components/AnnouncementCard.tsx
index 4a05de5..ed419ad 100644
--- a/client/src/components/AnnouncementCard.tsx
+++ b/client/src/components/AnnouncementCard.tsx
@@ -212,14 +212,14 @@ export default function AnnouncementCard() {
                     render={({ field }) => (
                       <FormItem>
                         <FormLabel>Magasin (optionnel)</FormLabel>
-                        <Select onValueChange={(value) => field.onChange(value ? parseInt(value) : undefined)}>
+                        <Select onValueChange={(value) => field.onChange(value === 'all' ? undefined : parseInt(value))}>
                           <FormControl>
                             <SelectTrigger>
                               <SelectValue placeholder="Tous les magasins" />
                             </SelectTrigger>
                           </FormControl>
                           <SelectContent>
-                            <SelectItem value="">Tous les magasins</SelectItem>
+                            <SelectItem value="all">Tous les magasins</SelectItem>
                             {groups.map((group: any) => (
                               <SelectItem key={group.id} value={group.id.toString()}>
                                 {group.name}
diff --git a/create_announcements_production.sql b/create_announcements_production.sql
new file mode 100644
index 0000000..ebc3095
--- /dev/null
+++ b/create_announcements_production.sql
@@ -0,0 +1,30 @@
+-- Script pour créer la table announcements en production
+-- Exécuter avec : psql -d votre_base -f create_announcements_production.sql
+
+-- Création de la table announcements
+CREATE TABLE IF NOT EXISTS announcements (
+  id SERIAL PRIMARY KEY,
+  title VARCHAR(255) NOT NULL,
+  content TEXT NOT NULL,
+  priority VARCHAR(20) NOT NULL DEFAULT 'normal' CHECK (priority IN ('normal', 'important', 'urgent')),
+  author_id VARCHAR(255) NOT NULL,
+  group_id INTEGER,
+  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+  updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+  CONSTRAINT announcements_author_id_fkey FOREIGN KEY (author_id) REFERENCES users(id) ON DELETE CASCADE,
+  CONSTRAINT announcements_group_id_fkey FOREIGN KEY (group_id) REFERENCES groups(id) ON DELETE CASCADE
+);
+
+-- Création des index
+CREATE INDEX IF NOT EXISTS idx_announcements_priority ON announcements(priority);
+CREATE INDEX IF NOT EXISTS idx_announcements_created_at ON announcements(created_at DESC);
+CREATE INDEX IF NOT EXISTS idx_announcements_author_id ON announcements(author_id);
+CREATE INDEX IF NOT EXISTS idx_announcements_group_id ON announcements(group_id);
+
+-- Commentaires
+COMMENT ON TABLE announcements IS 'Admin-managed announcements/information system';
+COMMENT ON COLUMN announcements.priority IS 'Priority level: normal, important, urgent';
+COMMENT ON COLUMN announcements.group_id IS 'NULL for global announcements, specific group_id for store-specific announcements';
+
+-- Vérification
+SELECT 'Table announcements créée avec succès!' as message;
\ No newline at end of file
diff --git a/migrations/production_fix_announcements.js b/migrations/production_fix_announcements.js
new file mode 100644
index 0000000..5474f03
--- /dev/null
+++ b/migrations/production_fix_announcements.js
@@ -0,0 +1,103 @@
+// Script de migration production pour créer la table announcements
+// Usage: node migrations/production_fix_announcements.js
+
+import { drizzle } from 'drizzle-orm/node-postgres';
+import pg from 'pg';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import { readFileSync } from 'fs';
+
+const { Pool } = pg;
+
+async function createAnnouncementsTable() {
+  const pool = new Pool({
+    connectionString: process.env.DATABASE_URL,
+  });
+
+  const db = drizzle(pool);
+
+  try {
+    console.log('🔄 Création de la table announcements...');
+
+    // SQL pour créer la table announcements
+    const sql = `
+      -- Création de la table announcements
+      CREATE TABLE IF NOT EXISTS announcements (
+        id SERIAL PRIMARY KEY,
+        title VARCHAR(255) NOT NULL,
+        content TEXT NOT NULL,
+        priority VARCHAR(20) NOT NULL DEFAULT 'normal' CHECK (priority IN ('normal', 'important', 'urgent')),
+        author_id VARCHAR(255) NOT NULL,
+        group_id INTEGER,
+        created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+        updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+        CONSTRAINT announcements_author_id_fkey FOREIGN KEY (author_id) REFERENCES users(id) ON DELETE CASCADE,
+        CONSTRAINT announcements_group_id_fkey FOREIGN KEY (group_id) REFERENCES groups(id) ON DELETE CASCADE
+      );
+
+      -- Création des index
+      CREATE INDEX IF NOT EXISTS idx_announcements_priority ON announcements(priority);
+      CREATE INDEX IF NOT EXISTS idx_announcements_created_at ON announcements(created_at DESC);
+      CREATE INDEX IF NOT EXISTS idx_announcements_author_id ON announcements(author_id);
+      CREATE INDEX IF NOT EXISTS idx_announcements_group_id ON announcements(group_id);
+
+      -- Commentaires
+      COMMENT ON TABLE announcements IS 'Admin-managed announcements/information system';
+      COMMENT ON COLUMN announcements.priority IS 'Priority level: normal, important, urgent';
+      COMMENT ON COLUMN announcements.group_id IS 'NULL for global announcements, specific group_id for store-specific announcements';
+    `;
+
+    await pool.query(sql);
+    
+    console.log('✅ Table announcements créée avec succès!');
+    
+    // Vérification que la table existe
+    const checkResult = await pool.query(`
+      SELECT EXISTS (
+        SELECT FROM information_schema.tables 
+        WHERE table_schema = 'public' 
+        AND table_name = 'announcements'
+      );
+    `);
+    
+    if (checkResult.rows[0].exists) {
+      console.log('✅ Vérification: La table announcements existe bien');
+      
+      // Afficher la structure de la table
+      const structure = await pool.query(`
+        SELECT column_name, data_type, is_nullable, column_default
+        FROM information_schema.columns 
+        WHERE table_name = 'announcements' 
+        ORDER BY ordinal_position;
+      `);
+      
+      console.log('📋 Structure de la table:');
+      structure.rows.forEach(row => {
+        console.log(`   ${row.column_name}: ${row.data_type}${row.is_nullable === 'NO' ? ' NOT NULL' : ''}`);
+      });
+    } else {
+      console.log('❌ Erreur: La table announcements n\'a pas été créée');
+    }
+
+  } catch (error) {
+    console.error('❌ Erreur lors de la création de la table:', error);
+    throw error;
+  } finally {
+    await pool.end();
+  }
+}
+
+// Exécution
+if (import.meta.url === `file://${process.argv[1]}`) {
+  createAnnouncementsTable()
+    .then(() => {
+      console.log('🎉 Migration terminée avec succès');
+      process.exit(0);
+    })
+    .catch((error) => {
+      console.error('💥 Échec de la migration:', error);
+      process.exit(1);
+    });
+}
+
+export { createAnnouncementsTable };
\ No newline at end of file