diff --git a/erpnext/shopping_cart/cart.py b/erpnext/shopping_cart/cart.py
index c3deaf2..254d7b7 100644
--- a/erpnext/shopping_cart/cart.py
+++ b/erpnext/shopping_cart/cart.py
@@ -65,10 +65,13 @@
 	from erpnext.selling.doctype.quotation.quotation import _make_sales_order
 	sales_order = frappe.get_doc(_make_sales_order(quotation.name, ignore_permissions=True))
 	for item in sales_order.get("items"):
-		item.reserved_warehouse = frappe.db.get_value("Item", item.item_code, "website_warehouse") or None
-		item_stock = get_qty_in_stock(item.item_code, "website_warehouse")
-		if item.qty > item_stock.stock_qty[0][0]:
-			throw(_("Only {0} in stock for item {1}").format(item_stock.stock_qty[0][0], item.item_code))
+		item.reserved_warehouse, is_stock_item = frappe.db.get_value("Item",
+			item.item_code, ["website_warehouse", "is_stock_item"]) or None, None
+
+		if is_stock_item:
+			item_stock = get_qty_in_stock(item.item_code, "website_warehouse")
+			if item.qty > item_stock.stock_qty[0][0]:
+				throw(_("Only {0} in stock for item {1}").format(item_stock.stock_qty[0][0], item.item_code))
 
 	sales_order.flags.ignore_permissions = True
 	sales_order.insert()