diff --git a/api/get_last_webhook_time.php b/api/get_last_webhook_time.php
new file mode 100644
index 0000000..5e70016
--- /dev/null
+++ b/api/get_last_webhook_time.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * API - Obtener timestamp del último webhook recibido
+ */
+require_once '../config/config.php';
+
+header('Content-Type: application/json; charset=utf-8');
+header('Access-Control-Allow-Origin: *');
+header('Access-Control-Allow-Methods: GET');
+
+try {
+    $db = Database::getInstance();
+    $row = $db->fetch('SELECT created_at, request_body FROM webhook_logs ORDER BY created_at DESC LIMIT 1');
+    if (!$row) {
+        echo json_encode(['success' => true, 'last_webhook' => null]);
+        exit;
+    }
+
+    // Intentar extraer teléfonos afectados del request_body (opcional)
+    $phones = [];
+    $req = json_decode($row['request_body'], true);
+    if ($req && isset($req['entry']) && is_array($req['entry'])) {
+        foreach ($req['entry'] as $entry) {
+            if (isset($entry['changes']) && is_array($entry['changes'])) {
+                foreach ($entry['changes'] as $change) {
+                    $val = $change['value'] ?? [];
+                    // buscar en contacts
+                    if (isset($val['contacts']) && is_array($val['contacts'])) {
+                        foreach ($val['contacts'] as $c) {
+                            if (isset($c['wa_id'])) $phones[] = $c['wa_id'];
+                        }
+                    }
+                    // buscar en messages
+                    if (isset($val['messages']) && is_array($val['messages'])) {
+                        foreach ($val['messages'] as $m) {
+                            if (isset($m['from'])) $phones[] = $m['from'];
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    $phones = array_values(array_unique($phones));
+
+    echo json_encode(['success' => true, 'last_webhook' => $row['created_at'], 'phones' => $phones]);
+
+} catch (Exception $e) {
+    http_response_code(500);
+    echo json_encode(['success' => false, 'error' => 'Error interno del servidor']);
+}
diff --git a/api/get_user_conversations.php b/api/get_user_conversations.php
new file mode 100644
index 0000000..87bfaa2
--- /dev/null
+++ b/api/get_user_conversations.php
@@ -0,0 +1,4 @@
+<?php
+// Compatibilidad: alias para get_user_messages.php
+// Incluye directamente el archivo existente para mantener comportamiento uniforme
+require_once 'get_user_messages.php';
diff --git a/assets/js/app_simple.js b/assets/js/app_simple.js
index 019ed1a..93da262 100644
--- a/assets/js/app_simple.js
+++ b/assets/js/app_simple.js
@@ -9,6 +9,10 @@ class SimpleWhatsAppManager {
         this.currentTab = 'dashboard';
 
         this.init();
+
+        // Webhook polling state
+        this._lastWebhook = null;
+        this.setupWebhookPolling();
     }
 
     init() {
@@ -161,6 +165,41 @@ class SimpleWhatsAppManager {
         }
     }
 
+    // Polling ligero para detectar nuevos webhooks y refrescar UI rápidamente
+    setupWebhookPolling() {
+        // Ejecutar cada 5 segundos
+        setInterval(async () => {
+            try {
+                const res = await fetch(this.apiBaseUrl + 'get_last_webhook_time.php');
+                if (!res.ok) return;
+                const data = await res.json();
+                if (!data || !data.success) return;
+
+                const last = data.last_webhook;
+                if (!last) return;
+
+                if (this._lastWebhook && this._lastWebhook === last) return;
+
+                // Hubo un nuevo webhook
+                this._lastWebhook = last;
+                this.log('Nuevo webhook detectado, refrescando conversaciones', 'info');
+
+                // Refrescar lista de conversaciones
+                await this.loadUsers(); // reload users (optional)
+                await this.loadconversations(); // reload message-related selects if on send_message
+                await this.loadConversations();
+
+                // Si hay un chat abierto, recargar sus mensajes
+                if (this.currentTab === 'conversations' && this.currentUserId) {
+                    await this.loadconversations(this.currentUserId, false);
+                }
+
+            } catch (e) {
+                this.log('Error polling webhook: ' + e.message, 'error');
+            }
+        }, 5000);
+    }
+
     async apiCallReal(endpoint, options = {}) {
         const url = `${this.apiBaseUrl}${endpoint}`;
 
diff --git a/index.php b/index.php
index a1000fd..f8effc4 100644
--- a/index.php
+++ b/index.php
@@ -645,7 +645,7 @@ try {
     <!-- Scripts -->
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
-    <script src="./assets/js/app_simple.js?v=2"></script>
+    <script src="./assets/js/app_simple.js?v=3"></script>
     <script>
         // Función de diagnóstico mejorada
         function runDiagnostic() {
diff --git a/scripts/test_get_conversations.php b/scripts/test_get_conversations.php
new file mode 100644
index 0000000..137ef90
--- /dev/null
+++ b/scripts/test_get_conversations.php
@@ -0,0 +1,11 @@
+<?php
+// Ejecutar api/get_conversations.php y mostrar salida
+chdir(__DIR__ . '/../api');
+ob_start();
+try {
+    include 'get_conversations.php';
+} catch (Throwable $t) {
+    echo 'Error: ' . $t->getMessage();
+}
+$out = ob_get_clean();
+echo $out;
diff --git a/scripts/test_get_user_conversations.php b/scripts/test_get_user_conversations.php
new file mode 100644
index 0000000..de9afea
--- /dev/null
+++ b/scripts/test_get_user_conversations.php
@@ -0,0 +1,13 @@
+<?php
+// Test API get_user_conversations.php
+$_GET['user_id'] = 2;
+$_GET['debug'] = 'true';
+chdir(__DIR__ . '/../api');
+ob_start();
+try {
+    include 'get_user_conversations.php';
+} catch (Throwable $t) {
+    echo 'Error: ' . $t->getMessage();
+}
+$out = ob_get_clean();
+echo $out;