How to know the nid of the node created

Hello,

Nice module!

When a customer add a product to its cart and he has complete the node form, the product is add to its cart with the link to edit the created node.

But when he confirms its order, how the admin know/get the nid of the node created. It does no appear neither in the invoice nor on the admin screen. (or I have not well seen).

Thanks in advance for your help