diff --git a/app/database.py b/app/database.py
index e32bc7d..a8ed9cf 100644
--- a/app/database.py
+++ b/app/database.py
@@ -53,6 +53,55 @@ 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")
+    # 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]:
+        conn.execute("PRAGMA foreign_keys = OFF")
+        conn.execute("""CREATE TABLE queries_new (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT NOT NULL,
+            query_type TEXT NOT NULL CHECK(query_type IN ('terceros','transaccion','ventas')),
+            query_text TEXT NOT NULL,
+            description TEXT,
+            created_at TEXT NOT NULL DEFAULT (datetime('now'))
+        )""")
+        conn.execute("INSERT INTO queries_new SELECT * FROM queries")
+        conn.execute("DROP TABLE queries")
+        conn.execute("ALTER TABLE queries_new RENAME TO queries")
+        conn.execute("PRAGMA foreign_keys = ON")
+        conn.commit()
+
+    # Ampliar CHECK constraint de envios para incluir 'ventas'
+    e_sql = conn.execute("SELECT sql FROM sqlite_master WHERE type='table' AND name='envios'").fetchone()
+    if e_sql and "'ventas'" not in e_sql[0]:
+        conn.execute("PRAGMA foreign_keys = OFF")
+        conn.execute("""CREATE TABLE envios_new (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            user_id INTEGER,
+            tipo TEXT NOT NULL CHECK(tipo IN ('terceros','transaccion','ventas')),
+            factura TEXT,
+            fecha_inicio TEXT,
+            fecha_fin TEXT,
+            pacientes_count INTEGER DEFAULT 0,
+            servicios_count INTEGER DEFAULT 0,
+            status TEXT NOT NULL DEFAULT 'pendiente',
+            json_enviado TEXT,
+            respuesta_api TEXT,
+            codigo_cuv TEXT,
+            idrecepcion INTEGER,
+            contrato TEXT,
+            mensaje_tns TEXT,
+            created_at TEXT NOT NULL DEFAULT (datetime('now')),
+            FOREIGN KEY (user_id) REFERENCES users(id)
+        )""")
+        conn.execute("INSERT INTO envios_new SELECT id,user_id,tipo,factura,fecha_inicio,fecha_fin,"
+                     "pacientes_count,servicios_count,status,json_enviado,respuesta_api,codigo_cuv,"
+                     "idrecepcion,contrato,mensaje_tns,created_at FROM envios")
+        conn.execute("DROP TABLE envios")
+        conn.execute("ALTER TABLE envios_new RENAME TO envios")
+        conn.execute("PRAGMA foreign_keys = ON")
+        conn.commit()
+
     conn.commit()
 
 
@@ -76,7 +125,7 @@ def init_db():
         CREATE TABLE IF NOT EXISTS queries (
             id INTEGER PRIMARY KEY AUTOINCREMENT,
             name TEXT NOT NULL,
-            query_type TEXT NOT NULL CHECK(query_type IN ('terceros','transaccion')),
+            query_type TEXT NOT NULL CHECK(query_type IN ('terceros','transaccion','ventas')),
             query_text TEXT NOT NULL,
             description TEXT,
             created_at TEXT NOT NULL DEFAULT (datetime('now'))
@@ -95,7 +144,7 @@ def init_db():
         CREATE TABLE IF NOT EXISTS envios (
             id INTEGER PRIMARY KEY AUTOINCREMENT,
             user_id INTEGER,
-            tipo TEXT NOT NULL CHECK(tipo IN ('terceros','transaccion')),
+            tipo TEXT NOT NULL CHECK(tipo IN ('terceros','transaccion','ventas')),
             factura TEXT,
             fecha_inicio TEXT,
             fecha_fin TEXT,