We offer customers various options on how to combine products offerings (mostly relating to buy X get % discount on Y). The maximum coupon amount should be capped on a parent coupon level though. Example:
1) Buy SKU123 get 10% discount on Product K (no quantity limit)
2) Buy SKU123 get 50% discount on Product L (no quantity limit)
3) Buy SKU123 get 50% discount on Product M (no quantity limit)
All three coupons may be used together, but only a maximum of i.e. €100 will be allowed to be discounted in total.
Please add the ability to have a maximum coupon value for parent coupons.