How to turn a quote into a sales order and an invoice
A customer accepts your quote: confirm it as a sales order, then invoice and deliver from it. Only the invoice is a tax document.
Steps
Open the quote
Under Sales → Quotes & Proformas, open the quote.
To sales order
Choose To sales order. A draft order is made from the quote's lines and names the quote.
Confirm the order
Choose Confirm order: it takes its SO- number. It posts nothing and owes nothing.
Invoice and deliver
From the order choose Convert to invoice, and To delivery note when the goods leave. The order shows Invoiced once its invoice is out.