The free text invoice represents service invoices that are issued to the customer and are not related to inventory items or sales orders. The free text invoice is not attached to a sales order. It consists of a header and lines for the ledger main account. The free text invoice document could be used for services, such as training fees.
In order to access the free text invoice, navigate to Accounts receivable | Invoices | All free text invoices, as shown in the following screenshot. In the free text invoice form, we will select a Customer account. In the invoice lines, we will select the offset main account, sales tax, and amount. The line view is the default view. To switch to the header view, click on Header view in the ribbon. The header view shows information about the customer, such as terms of payment, method of payment, and posting profile: