diff --git a/sale.py b/sale.py
index 213c657..58d6068 100644
--- a/sale.py
+++ b/sale.py
@@ -80,8 +80,7 @@ class Sale(metaclass=PoolMeta):
             if (sale.state in cls._states_cached
                     and sale.untaxed_amount_cache is not None
                     and sale.tax_amount_cache is not None
-                    and sale.total_amount_cache is not None
-                    and sale.total_discount is not None):
+                    and sale.total_amount_cache is not None):
                 untaxed_amount[sale.id] = sale.untaxed_amount_cache
                 total_discount[sale.id] = sale.total_discount_cache
                 if compute_taxes:
@@ -174,6 +173,7 @@ class Sale(metaclass=PoolMeta):
         data["untaxed_amount"] = str(record.untaxed_amount)
         data["tax_amount"] = str(record.tax_amount)
         data["total"] = str(record.total_amount)
+        data["state"] = "SUBTOTAL" if record.state == "draft" else "CUENTA FINAL"
 
         if record.payments:
             data['payments'] = [{