diff --git a/app/services/whatsapp_sync.py b/app/services/whatsapp_sync.py
index 726e633..aa69d59 100644
--- a/app/services/whatsapp_sync.py
+++ b/app/services/whatsapp_sync.py
@@ -5,6 +5,7 @@ Mapea campos Firebird al formato esperado por /api/lab/ingest_paciente.php.
 
 import re
 import json
+import asyncio
 import httpx
 from datetime import datetime
 from typing import Optional
@@ -175,25 +176,36 @@ async def sync_paciente(
 
 
 async def sync_todos(rows: list, url: str, api_key: str, timeout: int = 30, modo: str = "upsert",
-                     examenes_map: Optional[dict] = None) -> dict:
-    """Envía una lista de filas de pacientes. Retorna resumen {total, created, skipped, updated, errores}."""
+                     examenes_map: Optional[dict] = None, concurrencia: int = 10) -> dict:
+    """Envía una lista de filas de pacientes en paralelo. Retorna resumen {total, created, skipped, updated, errores}."""
     resultado = {"total": len(rows), "created": 0, "skipped": 0, "updated": 0, "errores": 0, "detalle": []}
+    sem = asyncio.Semaphore(concurrencia)
 
-    async with httpx.AsyncClient(timeout=timeout) as client:
-        for row in rows:
+    async def _enviar(row: dict, client: httpx.AsyncClient) -> dict:
+        async with sem:
             doc = str(row.get("DOCIDENT") or "").strip()
             examenes = examenes_map.get(doc) if examenes_map else None
-            r = await sync_paciente(row, url, api_key, client, modo, examenes)
-            if r["ok"]:
-                action = r["action"]
-                if action == "created":
-                    resultado["created"] += 1
-                elif action == "skipped":
-                    resultado["skipped"] += 1
-                else:
-                    resultado["updated"] += 1
+            return await sync_paciente(row, url, api_key, client, modo, examenes)
+
+    async with httpx.AsyncClient(timeout=timeout) as client:
+        tasks = [_enviar(row, client) for row in rows]
+        resultados = await asyncio.gather(*tasks, return_exceptions=True)
+
+    for r in resultados:
+        if isinstance(r, Exception):
+            resultado["errores"] += 1
+            resultado["detalle"].append({"ok": False, "action": "error", "message": str(r), "doc": "", "nombre": ""})
+            continue
+        if r["ok"]:
+            action = r["action"]
+            if action == "created":
+                resultado["created"] += 1
+            elif action == "skipped":
+                resultado["skipped"] += 1
             else:
-                resultado["errores"] += 1
-            resultado["detalle"].append(r)
+                resultado["updated"] += 1
+        else:
+            resultado["errores"] += 1
+        resultado["detalle"].append(r)
 
     return resultado
diff --git a/app/templates/envios_erp.html b/app/templates/envios_erp.html
index 823684b..10e6712 100644
--- a/app/templates/envios_erp.html
+++ b/app/templates/envios_erp.html
@@ -151,6 +151,7 @@ const _TAB_ACTIVE   = 'border-green-500 text-green-700 bg-green-50';
 const _TAB_INACTIVE = 'border-transparent text-gray-500 hover:text-gray-700 hover:border-gray-300';
 
 let _schedulerLoaded = false;
+let _histRefreshTimer = null;
 
 function switchTab(name) {
     document.querySelectorAll('.tab-panel').forEach(p => p.classList.add('hidden'));
@@ -168,10 +169,17 @@ function switchTab(name) {
         const iframe = document.getElementById('iframe-pacientes');
         if (!iframe.src) iframe.src = '/pacientes?embed=1';
     }
-    if (name === 'scheduler' && !_schedulerLoaded) {
-        _schedulerLoaded = true;
-        cargarHistorialScheduler();
-        pollSchedulerStatus();
+    if (name === 'scheduler') {
+        if (!_schedulerLoaded) {
+            _schedulerLoaded = true;
+            cargarHistorialScheduler();
+            pollSchedulerStatus();
+        }
+        // Auto-refresh historial cada 60s mientras el tab está activo
+        clearInterval(_histRefreshTimer);
+        _histRefreshTimer = setInterval(cargarHistorialScheduler, 60000);
+    } else {
+        clearInterval(_histRefreshTimer);
     }
 
     sessionStorage.setItem('erp-tab', name);
diff --git a/main.py b/main.py
index b56e687..e233f61 100644
--- a/main.py
+++ b/main.py
@@ -13,6 +13,7 @@ from apscheduler.schedulers.asyncio import AsyncIOScheduler
 from app.database import init_db
 from app.auth import decode_token
 from app.services.scheduler import sync_recientes
+from app.services.whatsapp_sync import guardar_sync_log
 
 app = FastAPI(title="RIPS Manager", version="1.0.0")
 _scheduler = AsyncIOScheduler()
@@ -63,8 +64,27 @@ async def startup():
     config_defaults()
     query_defaults()
     contratos_defaults()
-    _scheduler.add_job(sync_recientes, "interval", minutes=1, id="wa_sync_recientes",
-                       kwargs={"ventana_min": 10}, max_instances=1, coalesce=True)
+    async def _job_sync():
+        try:
+            resultado = await sync_recientes(ventana_min=10)
+            if not resultado.get("ok") and resultado.get("error"):
+                guardar_sync_log(
+                    {"total": 0, "created": 0, "skipped": 0, "updated": 0, "errores": 1, "detalle": [
+                        {"ok": False, "action": "error", "message": resultado["error"], "doc": "", "nombre": "scheduler-error"}
+                    ]},
+                    None, origen="scheduler", modo="upsert"
+                )
+        except Exception as exc:
+            import traceback
+            guardar_sync_log(
+                {"total": 0, "created": 0, "skipped": 0, "updated": 0, "errores": 1, "detalle": [
+                    {"ok": False, "action": "error", "message": str(exc), "doc": "", "nombre": "scheduler-exception"}
+                ]},
+                None, origen="scheduler", modo="upsert"
+            )
+
+    _scheduler.add_job(_job_sync, "interval", minutes=1, id="wa_sync_recientes",
+                       max_instances=1, coalesce=True)
     _scheduler.start()