diff --git a/index.js b/index.js
index 5281784..88a0979 100644
--- a/index.js
+++ b/index.js
@@ -130,7 +130,7 @@ app.post('/sendInteractiveImage', async (req, res) => {
 
   try {
     // 1) URL publique de votre image
-    const BASE_URL = process.env.BASE_URL || 'https://wa.canguidev.fr';
+    const BASE_URL = process.env.BASE_URL || 'https://wa.canguide.fr';
     const imageUrl = `${BASE_URL}/static/logo-merlo-cs-FR.jpg`;
 
     // 2) Contenu brut du message interactif
@@ -142,11 +142,11 @@ app.post('/sendInteractiveImage', async (req, res) => {
             deviceListMetadataVersion: 2
           },
           interactiveMessage: proto.Message.InteractiveMessage.create({
-            // ici on injecte l'image dans le header sans besoin de type explicite
             header: proto.Message.InteractiveMessage.Header.create({
+              // On donne simplement l'URL, Baileys s'en charge
               imageMessage: { url: imageUrl },
-              title:       'Igna',
-              subtitle:    'test'
+              title:    'Igna',    // facultatif
+              subtitle: 'test'     // facultatif
             }),
             body: proto.Message.InteractiveMessage.Body.create({
               text: caption || 'Description par défaut'
@@ -154,18 +154,23 @@ app.post('/sendInteractiveImage', async (req, res) => {
             footer: proto.Message.InteractiveMessage.Footer.create({
               text: footer  || 'Pied de page'
             }),
-            action: proto.Message.InteractiveMessage.Action.create({
+            // Ici on utilise nativeFlowMessage plutôt que `action` ou `buttons`
+            nativeFlowMessage: proto.Message.InteractiveMessage.NativeFlowMessage.create({
               buttons: [
+                // bouton URL “Proposition”
                 {
-                  urlButton: proto.Message.InteractiveMessage.URLButton.create({
-                    displayText: '📄 Voir proposition',
-                    url:         'https://merlo-ch.com/uploads/proposition/f_p_250505_0000136_00008_EB00001909.pdf'
+                  name: 'cta_url',
+                  buttonParamsJson: JSON.stringify({
+                    display_text: '📄 Voir proposition',
+                    url:          'https://merlo-ch.com/uploads/proposition/f_p_250505_0000136_00008_EB00001909.pdf'
                   })
                 },
+                // bouton URL “Spécifications”
                 {
-                  urlButton: proto.Message.InteractiveMessage.URLButton.create({
-                    displayText: '🔧 Spécifications',
-                    url:         'https://merlo-ch.com/uploads/proposition/d_p_250505_0000136_00008_EB00001909.pdf'
+                  name: 'cta_url',
+                  buttonParamsJson: JSON.stringify({
+                    display_text: '🔧 Spécifications',
+                    url:          'https://merlo-ch.com/uploads/proposition/d_p_250505_0000136_00008_EB00001909.pdf'
                   })
                 }
               ]
@@ -175,6 +180,7 @@ app.post('/sendInteractiveImage', async (req, res) => {
       }
     };
 
+
     // 3) Générer et envoyer
     const jid = `${phone}@s.whatsapp.net`;
     const msg = generateWAMessageFromContent(jid, rawMessage, {});