For our software company, when a customer orders a product, we "manually" create a registration/unlock key (string of letters and numbers) and send it to them in an email.
If someone orders after business hours, they have to wait until the next morning to get their key. We'd like to catch up to 2008 and have this be done automatically.
In the "Email Template", is there any way to send a custom "key"? If i have PHP code for creating the custom key, is there any way I can plug it into their email automatically?