I need some help here

[tekrok22]

I sell download games, so I wonder how I enter into serinummer? so that the customer can install it

[fuzzball172]

The serial number could be stored in a file, which is a virtual product. The customer downloads the game and then after trying it, they can buy the serial number from the store, download the virtual product and then get the key / number from the text file.

Is that what you mean?

[tekrok22]

No is not what I mean
when a customer buys a game of me, so I wish that serinummere to come on ordrebekrftelsen. Or on the customer's account