include_once($path_to_root . "/includes/data_checks.inc");
include_once($path_to_root . "/sales/includes/sales_db.inc");
include_once($path_to_root . "/sales/includes/sales_ui.inc");
+include_once($path_to_root . "/sales/includes/db/sales_types_db.inc");
include_once($path_to_root . "/sales/includes/ui/sales_credit_ui.inc");
include_once($path_to_root . "/sales/includes/ui/sales_order_ui.inc");