Generate voucher code automatically at checkout

In this module you create a product and tick it as "voucher".

The result:
- The product has the correct VAT of 0%, you cannot forget to set it correctly.

- When the customer buys the product, the system generates a voucher code and displays it in the admin area at the time of purchase

- Optional: when the order status jumps to e.g. "paid", the admin receives an email with the voucher code.

Now the admin can write the code on a beautifully designed voucher and send it by post.

Advantage: You don't have to manage long lists of codes and you don't have to send the code to the customer via ugly shop email.