You can create this invoice based on either an existing estimate or one or more
existing sales orders. If more than one estimate or sales order exists for this
customer or job, you can choose which ones to include on the invoice after you click
If you are not invoicing an existing estimate or sales order, select "Create a
Portions of this feature are available only in the Premier and
Enterprise Solutions editions. In QuickBooks Pro, you can work with existing sales
orders but cannot create new ones.