order and invoice different number

[jcorreia]

Hi,

Is there some way or contribution that can manage to have an order and invoice diferent number system.

My problem is that nowadays an order number turns into an invoice number...if the order goes well.

But there will be a time in which not all the orders will become sucessfull sells, generating a lot of nulled invoices and not having a sequential invoice number to all my sells.

Anybody knows how to manage this?

Thanks :)