diff --git a/server.js b/server.js
index 53bc0ed..df81159 100644
--- a/server.js
+++ b/server.js
@@ -879,6 +879,7 @@ app.post("/providers/import/:id", authMiddleware, async (req, res) => {
 });
 
 // AÑADIDO Y BLINDADO: CAPTURA COMPLETA DE DATOS Y REGLA WHATSAPP MANUAL
+// AÑADIDO Y BLINDADO: CAPTURA COMPLETA DE DATOS, REGLA WHATSAPP MANUAL Y DESASIGNACIÓN
 app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
     const { id } = req.params;
     let { automation_status, status, name, phone, address, cp, description, guild_id, assigned_to, assigned_to_name, internal_notes, client_notes, is_urgent, ...extra } = req.body;
@@ -902,12 +903,13 @@ app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
         let newStatus = extra.status_operativo || oldStatus;
         if (newStatus === "") newStatus = null;
 
-        // --- REGLA WA MANUAL ---
+        // --- REGLAS DE CAMBIO DE ESTADO MANUAL ---
         if (newStatus && newStatus !== oldStatus) {
             const statusQ = await pool.query("SELECT name FROM service_statuses WHERE id=$1", [newStatus]);
             const stName = (statusQ.rows[0]?.name || "").toLowerCase();
 
             if (stName.includes('asignado')) {
+                // Regla Asignado -> Pasa a Esperando si se envía WA
                 const waEnviadoExito = await triggerWhatsAppEvent(req.user.accountId, id, 'wa_evt_assigned');
                 if (waEnviadoExito) {
                     const estadoEsperando = await pool.query("SELECT id FROM service_statuses WHERE owner_id=$1 AND name='Esperando al Cliente' LIMIT 1", [req.user.accountId]);
@@ -916,6 +918,23 @@ app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
                         extra.status_operativo = newStatus; 
                     }
                 }
+            } else if (stName.includes('pendiente de asignar') || stName.includes('desasignado')) {
+                // Regla Desasignar -> Avisa al Operario y borra datos
+                const oldWorkerId = current.rows[0].assigned_to || current.rows[0].raw_data.assigned_to;
+                if (oldWorkerId) {
+                    const workerQ = await pool.query("SELECT full_name, phone FROM users WHERE id=$1", [oldWorkerId]);
+                    if (workerQ.rowCount > 0) {
+                        const w = workerQ.rows[0];
+                        const ref = current.rows[0].raw_data.service_ref || current.rows[0].raw_data["Referencia"] || id;
+                        const msg = `⚠️ *AVISO DE DESASIGNACIÓN*\n\nHola ${w.full_name}, se te ha retirado el expediente *#${ref}*.\n\nYa no tienes que atender este servicio.`;
+                        sendWhatsAppAuto(w.phone, msg, `cliente_${req.user.accountId}`, false).catch(console.error);
+                    }
+                }
+                // Forzamos el borrado del operario
+                assigned_to = null;
+                assigned_to_name = null;
+                extra.assigned_to = null;
+                extra.assigned_to_name = null;
             }
         }
 
@@ -938,10 +957,9 @@ app.put('/providers/scraped/:id', authMiddleware, async (req, res) => {
 
         // --- BLINDAJE DE OPERARIO VACÍO (Evita el error 500) ---
         let finalAssignedTo = assigned_to;
-        if (finalAssignedTo === "") finalAssignedTo = null;
-        else if (!finalAssignedTo) finalAssignedTo = current.rows[0].assigned_to;
+        if (finalAssignedTo === "" || finalAssignedTo === null) finalAssignedTo = null; // Queda libre
+        else if (finalAssignedTo === undefined) finalAssignedTo = current.rows[0].assigned_to; // Mantiene el que tenía
 
-        // Respetamos el estatus maestro original para que no desaparezca del tablero
         let currentDbStatus = current.rows[0].status;
 
         await pool.query(