Base on my understanding of PayIvy, you need to create separate products for each one of those codes in order for you to sell since their basically different from each one. As long as what your selling is legit and not claimed by you from hacking or such cases then you shouldn't have any problem to sell on this forum as well. Here's a set of rules for this forum: https://bitcointalksearch.org/topic/unofficial-list-of-official-bitcointalkorg-rules-guidelines-faq-703657
Thank you, sir. I also have researched same thing.
Locking thread. 
Hi, I wanted to sell digi goods on PayIvy. I, however don't understand how it works with the 'Codes / Serials' thingy. What if I wanted to sell lots of codes, then I have to 'Create Product' for each of the code? I plan to sell SFLY E-Gift Certs, is that also okay? 'cause I'm really new to buying & selling stuffs online. Thanks in advance!