Hi,
For the backend views, there is an "order / invoice" view.
For the frontend views, the "order / show" view is used for the display of the order and also for the display of the invoice in the popup.
To do that you'll have to edit the code of the "Invoice" file of the "Order" view of your back-end template via "Hikashop->Display->Views"
www.hikashop.com/support/documentation/1...ize-the-display.html
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.