You can specify a fully-configurable order report by setting the hidden field ``mv_order_report'' to a legal MiniVend page. This page will be interpolated with all MiniVend tags before sending by email. The order number as set by backend ordering is in the variable mv_order_number, and available for your use.
You could if you wish include HTML in the file, which will be interpreted by many mailers, but you can choose to use standard ASCII format. An example report is provided in the demo file <pages/ord/report.html>.