After a customer accepts your estimate, you can easily turn it into an invoice for billing. (If you want to partially invoice your customer, use progress invoicing instead.)
Here's how to convert an estimate/quote into an invoice:
From the left menu, select Sales, then choose All Sales.
- Find and open the estimate/quote.
- Select Create invoice.
- Add more details to the invoice as necessary, then select Save and close.
Now you're able to convert an estimate into an invoice.