The invoices that will be created always originate from deliveries, which you can select according to their delivery date (recorded in the Deliveries function): the only deliveries that will be selected are those that have been created up to this date.
In this field, enter the delivery date. The value of this field defaults to the current date.
According to the NVREFDAT - Origin date for invoicing parameter (VEN chapter, INV group), deliveries are filtered by their delivery date on the customer’s premises or by shipment date.