How to unvoid sales order ?

How to unvoid sales order ?

Helo,

We need to make a credit not from a voided invoice, which is linked to a voided sale order. I can't find a way to unvoid a sale order. There only a way to convert it to a Purchase order instead... The invoice can't be send back to draft because of the voided sale order.
From a accountancy point of view, and treacability, we can't make a standalone credit note.

What is the usual procedure?



Thanks