diff --git a/app/database.py b/app/database.py
index a8ed9cf..2a6a024 100644
--- a/app/database.py
+++ b/app/database.py
@@ -53,6 +53,8 @@ def _migrate(conn):
             conn.execute("ALTER TABLE contratos ADD COLUMN excluir INTEGER NOT NULL DEFAULT 0")
         if "sin_contrato" not in contrato_cols:
             conn.execute("ALTER TABLE contratos ADD COLUMN sin_contrato INTEGER NOT NULL DEFAULT 0")
+        if "excluir_ventas" not in contrato_cols:
+            conn.execute("ALTER TABLE contratos ADD COLUMN excluir_ventas INTEGER NOT NULL DEFAULT 0")
     # Ampliar CHECK constraint de queries para incluir 'ventas'
     q_sql = conn.execute("SELECT sql FROM sqlite_master WHERE type='table' AND name='queries'").fetchone()
     if q_sql and "'ventas'" not in q_sql[0]:
diff --git a/app/routes/contratos.py b/app/routes/contratos.py
index e9c4e2a..ae3d3ed 100644
--- a/app/routes/contratos.py
+++ b/app/routes/contratos.py
@@ -6,71 +6,71 @@ from app.utils.activity import log_activity, get_ip
 
 router = APIRouter(prefix="/contratos", tags=["contratos"])
 
-# (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir, sin_contrato)
+# (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir_rda, sin_contrato, excluir_ventas)
 _SEED = [
-    ("001",      "860078828", "11", "EPS SANITAS",          0, 0),
-    ("002",      "830054904", "11", "EPS COMPENSAR",         0, 0),
-    ("003",      "900278729", "12", "PARTICULAR",            0, 0),
-    ("004",      "800106339", "11", "EPS NUEVA EPS",         0, 0),
-    ("005",      "800153424", "11", "EPS SURA",              0, 0),
-    ("006",      "805009741", "11", "EPS COOMEVA",           0, 0),
-    ("007",      "860002183", "11", "EPS FAMISANAR",         0, 0),
-    ("008",      "860002503", "11", "EPS CRUZ BLANCA",       0, 0),
-    ("009",      "860027404", "11", "EPS COLSANITAS",        0, 0),
-    ("010",      "860039988", "11", "EPS SALUD TOTAL",       0, 0),
-    ("011",      "890903790", "11", "EPS SAVIA SALUD",       0, 0),
-    ("012",      "900178724", "11", "EPS MUTUAL SER",        0, 0),
-    ("034",      "860078828", "11", "EPS SANITAS (alt)",     0, 0),
-    ("035",      "860078828", "11", "EPS SANITAS (alt)",     0, 0),
-    ("036",      "860078828", "11", "EPS SANITAS (alt)",     0, 0),
-    ("20062026", "800182856", "01", "SUBSIDIADO",            0, 0),
-    ("CW225489", "899999068", "07", "POLIZA / SEGURO",       0, 0),
+    ("001",      "860078828", "11", "EPS SANITAS",          0, 0, 0),
+    ("002",      "830054904", "11", "EPS COMPENSAR",         0, 0, 0),
+    ("003",      "900278729", "12", "PARTICULAR",            0, 0, 0),
+    ("004",      "800106339", "11", "EPS NUEVA EPS",         0, 0, 0),
+    ("005",      "800153424", "11", "EPS SURA",              0, 0, 0),
+    ("006",      "805009741", "11", "EPS COOMEVA",           0, 0, 0),
+    ("007",      "860002183", "11", "EPS FAMISANAR",         0, 0, 0),
+    ("008",      "860002503", "11", "EPS CRUZ BLANCA",       0, 0, 0),
+    ("009",      "860027404", "11", "EPS COLSANITAS",        0, 0, 0),
+    ("010",      "860039988", "11", "EPS SALUD TOTAL",       0, 0, 0),
+    ("011",      "890903790", "11", "EPS SAVIA SALUD",       0, 0, 0),
+    ("012",      "900178724", "11", "EPS MUTUAL SER",        0, 0, 0),
+    ("034",      "860078828", "11", "EPS SANITAS (alt)",     0, 0, 0),
+    ("035",      "860078828", "11", "EPS SANITAS (alt)",     0, 0, 0),
+    ("036",      "860078828", "11", "EPS SANITAS (alt)",     0, 0, 0),
+    ("20062026", "800182856", "01", "SUBSIDIADO",            0, 0, 0),
+    ("CW225489", "899999068", "07", "POLIZA / SEGURO",       0, 0, 0),
     # Contratos excluidos del envío TNS
-    ("013",      "",          "11", "MEDILAVORO S.A.S",      0, 0),
-    ("014",      "",          "11", "LABORATORIO UROCLINICO",0, 0),
-    ("015",      "",          "11", "ANDRES AFANADOR VILLAMIZAR", 1, 0),
-    ("016",      "",          "11", "OMAR FERNANDO RIBERO GOMEZ", 1, 0),
-    ("017",      "",          "11", "CLAUDIA BELEN JULIO SEPULVEDA", 1, 0),
-    ("018",      "",          "11", "LABORATORIO MICROBIOLOGICO - MARGIE OJEDA", 1, 0),
-    ("019",      "",          "11", "LABORATORIO TOXICOLOGICO - MARTHA MORALES", 1, 0),
-    ("020",      "",          "11", "MARTHA LUCIA GALLARDO",  1, 0),
-    ("021",      "",          "11", "LABORATORIO VILMA OROZCO AYALA", 1, 0),
-    ("022",      "",          "11", "CLINICA SAN JOSE DE CUCUTA", 1, 0),
-    ("023",      "",          "11", "URONORTE S.A",           1, 0),
-    ("024",      "",          "11", "LABORATORIO CLINICO BIOLAB S.A.S", 1, 0),
-    ("025",      "",          "11", "JOEL LEONARDO CARRILLO CORREDOR", 1, 0),
-    ("026",      "",          "11", "ROLANDO IVAN PENARANDA DEVIA", 1, 0),
-    ("027",      "",          "11", "JOSE WILMER GARCIA CALDERON", 1, 0),
-    ("028",      "",          "11", "ONCOMEDICAL IPS S.A.S",  1, 0),
-    ("029",      "",          "11", "GENETIX S.A.S",          1, 0),
-    ("030",      "",          "11", "NORFETUS S.A.S",         1, 0),
-    ("031",      "",          "11", "TBTB GLOBAL LAB S.A.S",  1, 0),
-    ("032",      "",          "11", "COLGENES S.A.S",         1, 0),
-    ("033",      "",          "11", "IPS FIGURAS SPA CUCUTA S.A.S", 1, 0),
-    ("037",      "",          "11", "CLINICA URGENCIAS LA MERCED", 1, 0),
-    ("038",      "",          "11", "CLINICA COLSANITAS S.A.", 1, 0),
-    ("039",      "",          "11", "GOMEZ GIL JOSE JESUS",   1, 0),
-    ("040",      "",          "11", "MARTHA LILIANA SALGAR GALLEGO", 0, 1),
-    ("041",      "",          "11", "GENCELL PHARMA S.A.S",   1, 0),
-    ("042",      "",          "07", "AXA COLPATRIA HYC",      1, 0),
+    ("013",      "",          "11", "MEDILAVORO S.A.S",      0, 0, 0),
+    ("014",      "",          "11", "LABORATORIO UROCLINICO",0, 0, 0),
+    ("015",      "",          "11", "ANDRES AFANADOR VILLAMIZAR", 1, 0, 0),
+    ("016",      "",          "11", "OMAR FERNANDO RIBERO GOMEZ", 1, 0, 0),
+    ("017",      "",          "11", "CLAUDIA BELEN JULIO SEPULVEDA", 1, 0, 0),
+    ("018",      "",          "11", "LABORATORIO MICROBIOLOGICO - MARGIE OJEDA", 1, 0, 0),
+    ("019",      "",          "11", "LABORATORIO TOXICOLOGICO - MARTHA MORALES", 1, 0, 0),
+    ("020",      "",          "11", "MARTHA LUCIA GALLARDO",  1, 0, 0),
+    ("021",      "",          "11", "LABORATORIO VILMA OROZCO AYALA", 1, 0, 0),
+    ("022",      "",          "11", "CLINICA SAN JOSE DE CUCUTA", 1, 0, 0),
+    ("023",      "",          "11", "URONORTE S.A",           1, 0, 0),
+    ("024",      "",          "11", "LABORATORIO CLINICO BIOLAB S.A.S", 1, 0, 0),
+    ("025",      "",          "11", "JOEL LEONARDO CARRILLO CORREDOR", 1, 0, 0),
+    ("026",      "",          "11", "ROLANDO IVAN PENARANDA DEVIA", 1, 0, 0),
+    ("027",      "",          "11", "JOSE WILMER GARCIA CALDERON", 1, 0, 0),
+    ("028",      "",          "11", "ONCOMEDICAL IPS S.A.S",  1, 0, 0),
+    ("029",      "",          "11", "GENETIX S.A.S",          1, 0, 0),
+    ("030",      "",          "11", "NORFETUS S.A.S",         1, 0, 0),
+    ("031",      "",          "11", "TBTB GLOBAL LAB S.A.S",  1, 0, 0),
+    ("032",      "",          "11", "COLGENES S.A.S",         1, 0, 0),
+    ("033",      "",          "11", "IPS FIGURAS SPA CUCUTA S.A.S", 1, 0, 0),
+    ("037",      "",          "11", "CLINICA URGENCIAS LA MERCED", 1, 0, 0),
+    ("038",      "",          "11", "CLINICA COLSANITAS S.A.", 1, 0, 0),
+    ("039",      "",          "11", "GOMEZ GIL JOSE JESUS",   1, 0, 0),
+    ("040",      "",          "11", "MARTHA LILIANA SALGAR GALLEGO", 1, 1, 0),
+    ("041",      "",          "11", "GENCELL PHARMA S.A.S",   1, 0, 0),
+    ("042",      "",          "07", "AXA COLPATRIA HYC",      1, 0, 0),
 ]
 
 
 def ensure_defaults():
     conn = get_connection()
-    for nc, nit, tu, desc, excluir, sin_contrato in _SEED:
+    for nc, nit, tu, desc, excluir, sin_contrato, excluir_ventas in _SEED:
         exists = conn.execute(
             "SELECT id FROM contratos WHERE numero_contrato = ?", (nc,)
         ).fetchone()
         if not exists:
             conn.execute(
-                "INSERT INTO contratos (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir, sin_contrato) VALUES (?,?,?,?,?,?)",
-                (nc, nit, tu, desc, excluir, sin_contrato),
+                "INSERT INTO contratos (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir, sin_contrato, excluir_ventas) VALUES (?,?,?,?,?,?,?)",
+                (nc, nit, tu, desc, excluir, sin_contrato, excluir_ventas),
             )
         else:
             conn.execute(
-                "UPDATE contratos SET excluir=?, sin_contrato=? WHERE numero_contrato=?",
-                (excluir, sin_contrato, nc),
+                "UPDATE contratos SET excluir=?, sin_contrato=?, excluir_ventas=? WHERE numero_contrato=?",
+                (excluir, sin_contrato, excluir_ventas, nc),
             )
     conn.commit()
     conn.close()
@@ -108,7 +108,7 @@ def load_sin_contrato_set() -> set:
 
 
 def load_excluded_set() -> set:
-    """Devuelve set de numero_contrato (raw + sin ceros) marcados como excluir=1."""
+    """Devuelve set de numero_contrato marcados como excluir=1 (bloqueados para RDA)."""
     conn = get_connection()
     rows = conn.execute("SELECT numero_contrato FROM contratos WHERE excluir=1").fetchall()
     conn.close()
@@ -122,6 +122,21 @@ def load_excluded_set() -> set:
     return result
 
 
+def load_excluded_ventas_set() -> set:
+    """Devuelve set de numero_contrato marcados como excluir_ventas=1 (bloqueados para Ventas)."""
+    conn = get_connection()
+    rows = conn.execute("SELECT numero_contrato FROM contratos WHERE excluir_ventas=1").fetchall()
+    conn.close()
+    result = set()
+    for r in rows:
+        nc = r["numero_contrato"].strip()
+        result.add(nc)
+        nc_s = nc.lstrip("0") or nc
+        if nc_s != nc:
+            result.add(nc_s)
+    return result
+
+
 @router.get("")
 async def contratos_page(request: Request, user: dict = Depends(get_current_user)):
     conn = get_connection()
@@ -142,12 +157,13 @@ async def contrato_create(
     descripcion: str = Form(""),
     excluir: str = Form("0"),
     sin_contrato: str = Form("0"),
+    excluir_ventas: str = Form("0"),
 ):
     conn = get_connection()
     try:
         conn.execute(
-            "INSERT INTO contratos (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir, sin_contrato) VALUES (?,?,?,?,?,?)",
-            (numero_contrato.strip(), nit_empresa.strip(), tipo_usuario.strip(), descripcion.strip(), int(excluir), int(sin_contrato)),
+            "INSERT INTO contratos (numero_contrato, nit_empresa, tipo_usuario, descripcion, excluir, sin_contrato, excluir_ventas) VALUES (?,?,?,?,?,?,?)",
+            (numero_contrato.strip(), nit_empresa.strip(), tipo_usuario.strip(), descripcion.strip(), int(excluir), int(sin_contrato), int(excluir_ventas)),
         )
         conn.commit()
         log_activity(user["user_id"], user["username"], "contrato_creado",
@@ -169,11 +185,12 @@ async def contrato_update(
     descripcion: str = Form(""),
     excluir: str = Form("0"),
     sin_contrato: str = Form("0"),
+    excluir_ventas: str = Form("0"),
 ):
     conn = get_connection()
     conn.execute(
-        "UPDATE contratos SET numero_contrato=?, nit_empresa=?, tipo_usuario=?, descripcion=?, excluir=?, sin_contrato=? WHERE id=?",
-        (numero_contrato.strip(), nit_empresa.strip(), tipo_usuario.strip(), descripcion.strip(), int(excluir), int(sin_contrato), contrato_id),
+        "UPDATE contratos SET numero_contrato=?, nit_empresa=?, tipo_usuario=?, descripcion=?, excluir=?, sin_contrato=?, excluir_ventas=? WHERE id=?",
+        (numero_contrato.strip(), nit_empresa.strip(), tipo_usuario.strip(), descripcion.strip(), int(excluir), int(sin_contrato), int(excluir_ventas), contrato_id),
     )
     conn.commit()
     log_activity(user["user_id"], user["username"], "contrato_editado",
@@ -215,6 +232,22 @@ async def toggle_sin_contrato(contrato_id: int, request: Request, user: dict = D
     return RedirectResponse("/contratos", status_code=302)
 
 
+@router.post("/toggle-excluir-ventas/{contrato_id}")
+async def toggle_excluir_ventas(contrato_id: int, request: Request, user: dict = Depends(get_current_user)):
+    conn = get_connection()
+    conn.execute(
+        "UPDATE contratos SET excluir_ventas = CASE WHEN excluir_ventas=1 THEN 0 ELSE 1 END WHERE id=?",
+        (contrato_id,)
+    )
+    conn.commit()
+    row = conn.execute("SELECT numero_contrato, excluir_ventas FROM contratos WHERE id=?", (contrato_id,)).fetchone()
+    if row:
+        log_activity(user["user_id"], user["username"], "contrato_toggle_ventas",
+                     f"Contrato {row['numero_contrato']} excluir_ventas→{row['excluir_ventas']}", get_ip(request))
+    conn.close()
+    return RedirectResponse("/contratos", status_code=302)
+
+
 @router.post("/delete/{contrato_id}")
 async def contrato_delete(contrato_id: int, user: dict = Depends(get_current_user)):
     conn = get_connection()
diff --git a/app/routes/ventas.py b/app/routes/ventas.py
index a780882..a5aece8 100644
--- a/app/routes/ventas.py
+++ b/app/routes/ventas.py
@@ -9,6 +9,7 @@ from app.services.firebird_service import get_firebird_from_config
 from app.services.json_generator import generar_factura_venta
 from app.services.api_client import get_tns_token, TNS_BASE
 from app.utils.activity import log_activity, get_ip
+from app.routes.contratos import load_excluded_ventas_set
 
 router = APIRouter(prefix="/ventas", tags=["ventas"])
 
@@ -141,7 +142,11 @@ async def preview_ventas(
     if not rows:
         return JSONResponse({"success": False, "message": "Sin datos"})
 
-    grupos = _agrupar(rows)
+    excluded_ventas = load_excluded_ventas_set()
+    grupos_all = _agrupar(rows)
+    grupos = {k: v for k, v in grupos_all.items()
+              if str(v[0].get("CODCONTRATO") or "").strip() not in excluded_ventas}
+
     items = []
     for key, grupo_rows in grupos.items():
         enviado = _is_sent(key)
@@ -245,7 +250,10 @@ async def send_ventas(
     if not rows:
         return JSONResponse({"success": False, "message": "Sin datos"})
 
-    grupos = _agrupar(rows)
+    excluded_ventas = load_excluded_ventas_set()
+    grupos_all = _agrupar(rows)
+    grupos = {k: v for k, v in grupos_all.items()
+              if str(v[0].get("CODCONTRATO") or "").strip() not in excluded_ventas}
     if solo_pendientes == "1":
         grupos = {k: v for k, v in grupos.items() if not _is_sent(k)}
 
diff --git a/app/templates/contratos.html b/app/templates/contratos.html
index 8cebbb7..e1b88f0 100644
--- a/app/templates/contratos.html
+++ b/app/templates/contratos.html
@@ -67,7 +67,8 @@
                         <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase">NIT Empresa</th>
                         <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Tipo Usuario</th>
                         <th class="px-4 py-3 text-left text-xs font-semibold text-gray-500 uppercase">Descripción</th>
-                        <th class="px-4 py-3 text-center text-xs font-semibold text-gray-500 uppercase">Envío TNS</th>
+                        <th class="px-4 py-3 text-center text-xs font-semibold text-gray-500 uppercase">Excluir RDA</th>
+                        <th class="px-4 py-3 text-center text-xs font-semibold text-gray-500 uppercase">Excluir Ventas</th>
                         <th class="px-4 py-3 text-center text-xs font-semibold text-gray-500 uppercase">Sin Contrato</th>
                         <th class="px-4 py-3 text-center text-xs font-semibold text-gray-500 uppercase">Acciones</th>
                     </tr>
@@ -105,6 +106,19 @@
                                 {% endif %}
                             </form>
                         </td>
+                        <td class="px-4 py-3 text-center">
+                            <form method="POST" action="/contratos/toggle-excluir-ventas/{{ c.id }}" class="inline">
+                                {% if c.excluir_ventas %}
+                                    <button type="submit" class="inline-flex items-center gap-1 px-2.5 py-1 bg-red-100 text-red-700 hover:bg-red-200 rounded-full text-xs font-medium transition-colors">
+                                        <i class="fas fa-ban text-xs"></i> Excluido
+                                    </button>
+                                {% else %}
+                                    <button type="submit" class="inline-flex items-center gap-1 px-2.5 py-1 bg-emerald-100 text-emerald-700 hover:bg-emerald-200 rounded-full text-xs font-medium transition-colors">
+                                        <i class="fas fa-check text-xs"></i> Activo
+                                    </button>
+                                {% endif %}
+                            </form>
+                        </td>
                         <td class="px-4 py-3 text-center">
                             <form method="POST" action="/contratos/toggle-sin-contrato/{{ c.id }}" class="inline">
                                 {% if c.sin_contrato %}
@@ -119,7 +133,7 @@
                             </form>
                         </td>
                         <td class="px-4 py-3 text-center">
-                            <button onclick="openEdit({{ c.id }}, '{{ c.numero_contrato }}', '{{ c.nit_empresa }}', '{{ c.tipo_usuario }}', '{{ c.descripcion }}', {{ c.excluir }}, {{ c.sin_contrato }})"
+                            <button onclick="openEdit({{ c.id }}, '{{ c.numero_contrato }}', '{{ c.nit_empresa }}', '{{ c.tipo_usuario }}', '{{ c.descripcion }}', {{ c.excluir }}, {{ c.sin_contrato }}, {{ c.excluir_ventas }})"
                                 class="text-blue-600 hover:text-blue-800 mr-3 text-xs">
                                 <i class="fas fa-edit"></i> Editar
                             </button>
@@ -175,14 +189,18 @@
                         class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:ring-2 focus:ring-blue-500">
                 </div>
             </div>
-            <div class="flex items-center gap-6">
+            <div class="flex flex-wrap items-center gap-4">
                 <label class="flex items-center gap-2 cursor-pointer">
                     <input type="checkbox" name="excluir" id="edit-excluir" value="1" class="rounded">
-                    <span class="text-sm text-gray-700">Excluir del envío TNS</span>
+                    <span class="text-sm text-gray-700">Excluir RDA <span class="text-xs text-red-500">(bloquea transacción/automation)</span></span>
+                </label>
+                <label class="flex items-center gap-2 cursor-pointer">
+                    <input type="checkbox" name="excluir_ventas" id="edit-excluir-ventas" value="1" class="rounded">
+                    <span class="text-sm text-gray-700">Excluir Ventas <span class="text-xs text-red-500">(bloquea /ventas)</span></span>
                 </label>
                 <label class="flex items-center gap-2 cursor-pointer">
                     <input type="checkbox" name="sin_contrato" id="edit-sin-contrato" value="1" class="rounded">
-                    <span class="text-sm text-gray-700">Enviar sin contrato <span class="text-xs text-yellow-600">(numeroContrato: null)</span></span>
+                    <span class="text-sm text-gray-700">Sin contrato <span class="text-xs text-yellow-600">(numeroContrato: null)</span></span>
                 </label>
             </div>
             <div class="flex justify-end space-x-3 pt-2">
@@ -200,7 +218,7 @@
 </div>
 
 <script>
-function openEdit(id, nc, nit, tu, desc, excluir, sinContrato) {
+function openEdit(id, nc, nit, tu, desc, excluir, sinContrato, excluirVentas) {
     document.getElementById('edit-form').action = '/contratos/update/' + id;
     document.getElementById('edit-nc').value = nc;
     document.getElementById('edit-nit').value = nit;
@@ -208,6 +226,7 @@ function openEdit(id, nc, nit, tu, desc, excluir, sinContrato) {
     document.getElementById('edit-desc').value = desc;
     document.getElementById('edit-excluir').checked = excluir === 1;
     document.getElementById('edit-sin-contrato').checked = sinContrato === 1;
+    document.getElementById('edit-excluir-ventas').checked = excluirVentas === 1;
     document.getElementById('edit-modal').classList.remove('hidden');
 }
 function closeEdit() {