In QuickBooks Online, a statement is the status of a customer's account at a point in time. It is not a transaction. And, each line on a statement represents sales transaction such as credits invoices and anything that you have processed for that particular customer.
The downside of using statements in QuickBooks Online is that you cannot customize the layout and text that is on it like you could with a sales receipt or invoice. Keep reading to learn what app I recommend to create statements in QuickBooks Online.