Don't create delivery notes for virtual products

[SilviaBB]

Hello all,

I'm with Prestashop 1.6.23, and I'd like to configure order states to send automatically invoices to the customers once the payment is received, and also create the delivery note automatically.

I know how to do it, but I cannot see how to avoid that orders that only have virtual products create automatic delivery notes, since there's no product to send.

Do you know if there's any way to do it? Create automatic delivery notes only when the order includes any standard product?

Thank you very much!