who can help us on a solution to using multiple vouchers in one cart?

[premiumprint]

We often run daily deals. Every time before running the deal, we will upload 100 vouchers into our system. People who buy the vouchers from daily deal websites will come to my site for redeeming.

 

But we are unable to set up the compatibilities between these 100 vouchers so that our customers can use multiple vouchers in a single cart. They have to redeem their vouchers one by one ..... You know, it always leads to a complaint. 

 

I don't know how other people figure out the problem. We think that we cannot do it in advance because of the table size limitation. We need (1x2x3x...x100)/2 pairs to make sure that any multiple vouchers among these 100 can be used in a single cart. (1x2x3x...x100)/2 is a huge number!

 

Help!

 

 

[shacker]

but when you create a voucher, you can make it compatible with other vouchers, so you can use all compatible vouchers in same cart.