Hi,
This feature is not implemented in HikaShop but it could be implemented using a custom plugin or by modifying the current affiliate plugin.
HikaShop have a lot of triggers and the trigger "onAfterOrderUpdate" is called when an order is update.
You can create a plugin which would receive this trigger and which would send an email to the affiliate partner if the order is confirmed.
The first parameter of the function is the order object which would contains a lot of useful information.
You can retrieve the user_id of the order, get the affiliate (if there), retrieve affiliate information and send him an email.
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.