diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb
index f4c6ef6..a0d6f64 100644
--- a/lab-python-error-handling.ipynb
+++ b/lab-python-error-handling.ipynb
@@ -37,6 +37,8 @@
     "                print(f\"Error: {error}\")\n",
     "        inventory[product] = quantity\n",
     "    return inventory\n",
+    "    \n",
+    "    \n",
     "\n",
     "# Or, in another way:\n",
     "\n",
@@ -64,6 +66,9 @@
     "2. Modify the `calculate_total_price` function to include error handling.\n",
     "   - If the user enters an invalid price (e.g., a negative value or a non-numeric value), display an error message and ask them to re-enter the price for that product.\n",
     "   - Use a try-except block to handle the error and continue prompting the user until a valid price is entered.\n",
+    "   \n",
+    "\n",
+    "   \n",
     "\n",
     "3. Modify the `get_customer_orders` function to include error handling.\n",
     "   - If the user enters an invalid number of orders (e.g., a negative value or a non-numeric value), display an error message and ask them to re-enter the number of orders.\n",
@@ -72,11 +77,71 @@
     "\n",
     "4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected.\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "4292b28c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def calculate_total_price(customer_orders):\n",
+    "    total_price = 2\n",
+    "    for product in customer_orders:\n",
+    "        valid_price = False\n",
+    "        while not valid_price:\n",
+    "            try:\n",
+    "                price = float(input(f\"Enter the price for {product}: \"))\n",
+    "                if price < 2:\n",
+    "                    raise ValueError(\"Price cannot be less than 2.\")\n",
+    "                total_price += price\n",
+    "                valid_price = True\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error} Please enter a valid price.\")\n",
+    "    return total_price"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "feb77992",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def get_customer_orders(inventory):\n",
+    "    # Validar número de pedidos\n",
+    "    valid_num = False\n",
+    "    while not valid_num:\n",
+    "        try:\n",
+    "            num_orders = int(input(\"Enter the number of customer orders: \"))\n",
+    "            if num_orders <= 0:\n",
+    "                raise ValueError(\"Number of orders must be positive.\")\n",
+    "            valid_num = True\n",
+    "        except ValueError as error:\n",
+    "            print(f\"Error: {error} Please enter a valid number.\")\n",
+    "\n",
+    "    customer_orders = set()\n",
+    "    for _ in range(num_orders):\n",
+    "        valid_product = False\n",
+    "        while not valid_product:\n",
+    "            try:\n",
+    "                product = input(\"Enter the name of a product: \").strip()\n",
+    "                if product not in inventory:\n",
+    "                    raise ValueError(f\"'{product}' is not in the inventory.\")\n",
+    "                if inventory[product] == 0:\n",
+    "                    raise ValueError(f\"'{product}' is out of stock.\")\n",
+    "                customer_orders.add(product)\n",
+    "                valid_product = True\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error} Please enter a valid product.\")\n",
+    "\n",
+    "    return customer_orders"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": ".venv (3.15.0)",
    "language": "python",
    "name": "python3"
   },
@@ -90,7 +155,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.15.0a7"
   }
  },
  "nbformat": 4,