individual code generators to gain access
Hi is there any possibility to have automatic code generators that I can deliver when somebody buys a book from me so they gain access with it to a forum?
like:
customer #1 buys book. receives code #ABCD2
customer #2 buys book. receives code #ABCD3
....
like:
customer #1 buys book. receives code #ABCD2
customer #2 buys book. receives code #ABCD3
....