diff --git a/app/routes/automation.py b/app/routes/automation.py
index 7c83b3d..6c3f008 100644
--- a/app/routes/automation.py
+++ b/app/routes/automation.py
@@ -208,6 +208,30 @@ async def preview_automation(
     grupos_ps = {k: v for k, v in grupos_ps_all.items()
                  if str(v[0].get("CODCONTRATO") or "").strip() not in excluded}
 
+    contrato_map = load_contrato_map()
+    prof_def  = configs.get("profesional_defecto", "")
+    esp_def   = configs.get("especialidad_defecto", "")
+    remis_def = configs.get("remisionante_defecto", "00")
+    prefijo_def = configs.get("prefijo_defecto", "00")
+
+    preservicios_preview = []
+    for id_ps, grupo_rows in grupos_ps.items():
+        ps_prefijo = str(grupo_rows[0].get("PS_PREFIJO") or "SC").strip()
+        ps_numero  = str(grupo_rows[0].get("PS_NUMERO") or "").strip()
+        rda_json = generar_rda_paciente(
+            grupo_rows, prof_def, esp_def, remis_def, prefijo_def,
+            numero_override=ps_numero,
+            contrato_map=contrato_map,
+            prefijo_override=ps_prefijo,
+        )
+        preservicios_preview.append({
+            "factura": f"{ps_prefijo}-{ps_numero.zfill(5)}",
+            "paciente": str(grupo_rows[0].get("COD_PACIENTE", "")),
+            "fecha": str(grupo_rows[0].get("FECHA_RECEPCION", ""))[:10],
+            "examenes": len(grupo_rows),
+            "json": rda_json,
+        })
+
     # Agrupar RDA por COD_PACIENTE
     rda_por_pac = {}
     for id_rec, filas in grupos.items():
@@ -245,6 +269,7 @@ async def preview_automation(
         "excluidos": excluidos_count,
         "preservicios": len(grupos_ps),
         "pacientes_preview": pacientes_preview,
+        "preservicios_preview": preservicios_preview,
     })
 
 
diff --git a/app/templates/automation.html b/app/templates/automation.html
index 0c1b0af..a0c9647 100644
--- a/app/templates/automation.html
+++ b/app/templates/automation.html
@@ -71,6 +71,10 @@
         <p class="text-xs font-medium text-gray-600 mb-2">Pacientes — clic para ver sus recepciones:</p>
         <div id="preview-table" class="border border-gray-100 rounded-lg overflow-hidden text-sm"></div>
       </div>
+      <div id="preservicios-section" class="hidden">
+        <p class="text-xs font-medium text-orange-600 mb-2 mt-2">Pre-servicios RCXC / SC — clic para ver JSON:</p>
+        <div id="preview-ps-table" class="border border-orange-100 rounded-lg overflow-hidden text-sm"></div>
+      </div>
     </div>
   </div>
 
@@ -206,6 +210,26 @@ async function previewAutomation() {
     document.getElementById('cnt-preservicios').textContent = data.preservicios || 0;
     document.getElementById('preview-fecha').textContent = data.fecha;
 
+    const psTable = document.getElementById('preview-ps-table');
+    const psSection = document.getElementById('preservicios-section');
+    if (data.preservicios_preview && data.preservicios_preview.length > 0) {
+      psTable.innerHTML = data.preservicios_preview.map((ps, i) => `
+        <div class="divide-y divide-orange-50">
+          <div class="flex items-center gap-3 px-4 py-2.5 hover:bg-orange-50 cursor-pointer select-none"
+               onclick="togglePs('ps-json-${i}', this)">
+            <i class="fas fa-chevron-right text-orange-300 text-xs transition-transform duration-150" id="pschev-${i}"></i>
+            <span class="font-mono text-orange-700 font-medium w-32">${ps.factura}</span>
+            <span class="text-gray-500 w-24 text-xs">${ps.fecha}</span>
+            <span class="text-gray-600 flex-1 text-xs">Pac. ${ps.paciente}</span>
+            <span class="text-xs text-orange-500">${ps.examenes} examen(es)</span>
+          </div>
+          <div id="ps-json-${i}" class="hidden bg-gray-900 text-green-300 text-xs font-mono p-4 overflow-x-auto whitespace-pre">${JSON.stringify(ps.json, null, 2)}</div>
+        </div>`).join('');
+      psSection.classList.remove('hidden');
+    } else {
+      psSection.classList.add('hidden');
+    }
+
     const table = document.getElementById('preview-table');
     if (data.pacientes === 0) {
       table.innerHTML = '<div class="p-4 text-gray-400 text-center">No hay pacientes para esta fecha</div>';
@@ -340,6 +364,14 @@ function toggleRda(id, row) {
   if (chev) chev.style.transform = hidden ? 'rotate(90deg)' : '';
 }
 
+function togglePs(id, row) {
+  const div = document.getElementById(id);
+  const chev = row.querySelector('[id^="pschev-"]');
+  const hidden = div.classList.contains('hidden');
+  div.classList.toggle('hidden', !hidden);
+  if (chev) chev.style.transform = hidden ? 'rotate(90deg)' : '';
+}
+
 function renderBadge(id, enviados, errores) {
   const el = document.getElementById(id);
   if (errores === 0) {