Ticketing for Online event accessed by unique codes

Hi all,

We are looking for anyone who can offer help or advice for a request we have got from our programming team.

We are looking to sell for a online event on Tess/TNEW which we can sell as a normal general admission event. We then need to somehow get to customers who has bought a place a unique, special 16 digit code so they can access the event online. What is tricky is that the codes we need to send to customers are provided by the producers of the event. I.e. they can't be something that comes directly from Tess automatically (like a ticket number). The producers provide the codes in advance of the event going on sale.

We also want to get the code to the customer asap after they have made the purchase, although the event itself is at a set time and date. We want to be able to sell right up until the event starts (ideally until 30 min before).

If anyone has found a good way to do this, or something similar, for any events they are ticketing for it would be great to hear a rough outline of how you did it!

Many thanks,

Donald