You can copy an existing pro forma or sales order and then amend the information to suit.
You can copy a pro forma invoice or order and apply a different customer to the copied pro forma invoice.
If you choose a different customer account to the original pro forma invoice or order, any analysis codes on the order that were set to default to the customer account, will change to the default analysis codes for the new customer.
Note: Payment details, order or pro forma number and dates are not copied.
Open: Sales Order Processing > Pro Forma Invoices > Enter New Pro Forma.
Select Copy quotation prices and discounts to use the same prices and line discounts, as well as the order line items and quantities.
Clear this option to use prices and discounts from the Price Book.