Hi,
Yes, HikaSerial is the right component for such thing.
Using the "coupon generator", you can create automatically a coupon which will have a specific price or a dynamic price (the price of the product or a percentage of it).
Only once the order is confirmed, the user will receive the coupon code in the confirmation email ; and it's also possible to send that coupon thanks to an attached image in the email.
www.hikashop.com/support/documentation/1...ugins-coupongen.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.