diff --git a/api/send_media_message.php b/api/send_media_message.php
index 76d6032..08315db 100644
--- a/api/send_media_message.php
+++ b/api/send_media_message.php
@@ -334,13 +334,15 @@ try {
         
         if ($user) {
             // Datos base para insertar
+            // content: solo caption o nombre de archivo
+            // media_url: ID de WhatsApp si está disponible, sino la URL original
             $conversationData = [
                 'user_id' => $user['id'],
                 'message_id' => $sentMessageId,
                 'direction' => 'outgoing',
                 'message_type' => $mediaType,
-                'content' => $caption ?? $filename ?? '',
-                'media_url' => $mediaUrl,
+                'content' => $caption ?: ($filename ?: ''),
+                'media_url' => isset($uploaded_media_id) ? $uploaded_media_id : $mediaUrl,
                 'whatsapp_media_id' => $uploaded_media_id ?? null,
                 'status' => 'sent',
                 'created_at' => date('Y-m-d H:i:s')