I'd like to offer customers purchasing from our B&M shop a gift voucher for use online. Is there a way I can set things up so that the voucher can be used once only?
The way I am thinking of it now is to have a single code that expires in 90 days and give this to everyone that purchases this month. While that could work it would not stop anyone from using the code over and over again.
However if you have to have multiple single use codes then how could these be generated so they can't be cracked?
The way I am thinking of it now is to have a single code that expires in 90 days and give this to everyone that purchases this month. While that could work it would not stop anyone from using the code over and over again.
However if you have to have multiple single use codes then how could these be generated so they can't be cracked?
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