After reading the documentation and trying the test site, I can confirm Hikserial is a very powerful component!
A few pre-sale questions on what it can do now and how it could be further developed.
We would like to use it for Gift Coupons to be purchased by Hikashop user A and offered to a non-Hikashop user B, for example for his birthday
Q1 - Can user A choose his preferred image from a choice of coupon images?
Q2 - Can user A write a birthday message to be embedded on the coupon image?
Q3 - Can the message be a WYSIWYG basic text formatting (bold, underline, colors) and can the formatting appear also on the coupon image?
Q4 - Can user A preview the coupon during the purchase process and see exactly how the message looks like on the coupon image?
Q5 - Can Hikaserial email the coupon to user B on his birthday date?
Q6 - Can user A be notified when user B has opened his birthday coupon email?
Q7 - Can user A be notified when user B has made an order using his coupon?
My guesses and suggestions
Q1: we create free products with 1 different coupon image each
Each free product will have a specific Hikaserial configuration with a specific coupon image
Q2, Q3: this should be feasible with a custom field HTML. But not sure about the message display on coupon image
Q4: no idea. Coupon number cannot be generated before payment is confirmed but can we show a custom field preview on coupon image before the order is created?
Maybe the checkout process step COUPON could be customized
Q5, Q6, Q7: maybe a specific mass action plugin could allow to do this