diff --git a/debug_message_7.php b/debug_message_7.php
new file mode 100644
index 0000000..c4042fd
--- /dev/null
+++ b/debug_message_7.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * Debug: Ver qué hay en el mensaje programado ID 7
+ */
+
+require_once __DIR__ . '/config/config.php';
+
+header('Content-Type: text/plain; charset=utf-8');
+
+echo "=== DEBUG MENSAJE PROGRAMADO ID 7 ===\n\n";
+
+try {
+    $db = Database::getInstance();
+    
+    $msg = $db->fetch(
+        "SELECT sm.*, u.phone_number, u.name as user_name
+         FROM scheduled_messages sm
+         LEFT JOIN users u ON sm.user_id = u.id
+         WHERE sm.id = 7"
+    );
+    
+    if (!$msg) {
+        echo "❌ Mensaje ID 7 no encontrado\n";
+        exit;
+    }
+    
+    echo "📋 DATOS BÁSICOS:\n";
+    echo "ID: {$msg['id']}\n";
+    echo "Usuario: {$msg['user_name']} ({$msg['phone_number']})\n";
+    echo "Estado: {$msg['status']}\n";
+    echo "Tipo: {$msg['message_type']}\n";
+    echo "Programado para: {$msg['scheduled_date']} {$msg['scheduled_time']}\n\n";
+    
+    if ($msg['message_type'] === 'template') {
+        echo "📝 PLANTILLA:\n";
+        echo "Nombre: {$msg['template_name']}\n";
+        echo "Idioma: {$msg['template_language']}\n";
+        echo "Template ID: {$msg['template_id']}\n\n";
+        
+        echo "📊 PARÁMETROS RAW (string guardado en BD):\n";
+        echo $msg['template_parameters'] . "\n\n";
+        
+        echo "🔍 PARÁMETROS DECODIFICADOS:\n";
+        $params = json_decode($msg['template_parameters'], true);
+        
+        if (is_array($params)) {
+            echo "Tipo: array\n";
+            echo "Cantidad: " . count($params) . "\n";
+            echo "Formato: ";
+            
+            $isAssociative = false;
+            foreach ($params as $k => $v) {
+                if (!is_int($k)) {
+                    $isAssociative = true;
+                    break;
+                }
+            }
+            
+            echo ($isAssociative ? "ASOCIATIVO (con nombres)" : "INDEXADO (numérico)") . "\n\n";
+            
+            echo "Valores:\n";
+            foreach ($params as $k => $v) {
+                echo "  [$k] => '$v'\n";
+            }
+        } else {
+            echo "⚠️ No es un array válido\n";
+        }
+        
+        echo "\n\n📤 CÓMO SE ENVIARÁ A WHATSAPP:\n";
+        
+        // Simular lo que hace WhatsAppService
+        $whatsappService = new WhatsAppService();
+        
+        try {
+            // Hacer dry run para ver el payload
+            $dryPayload = $whatsappService->sendTemplateMessage(
+                $msg['phone_number'],
+                $msg['template_name'],
+                $msg['template_language'] ?? 'es',
+                $params,
+                [],
+                null,
+                null,
+                true  // dryRun = true
+            );
+            
+            echo json_encode($dryPayload, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
+            
+        } catch (Exception $e) {
+            echo "❌ Error generando payload: " . $e->getMessage() . "\n";
+        }
+        
+    } else {
+        echo "📝 CONTENIDO:\n";
+        echo $msg['message_content'] . "\n";
+    }
+    
+    if (!empty($msg['error_message'])) {
+        echo "\n\n❌ ERROR REGISTRADO:\n";
+        echo $msg['error_message'] . "\n";
+    }
+    
+} catch (Exception $e) {
+    echo "❌ Error: " . $e->getMessage() . "\n";
+}