The field list shows two tables, DetailData and InvoiceData. We recommend that you always work with InvoiceData, which represents all of the information in the order, and not DetailData, which represents just the detail data and is not connected to the invoice (order) data.

InvoiceData represents all of the information in an order record. If you expand InvoiceData (by clicking the “plus” sign next to it) and scroll down you will see InvoiceDataDetailData, which is the representation of the detail information for the order. This is the equivalent of DetailData, but it is connected to the overall order.
