You can generate a preliminary bill, known as a proforma folio, with the actual and anticipated charges - such as fixed, package and accommodation charges and taxes - for the duration of the stay. A pro-forma folio only applies to Billing window #1. Room routing of charges are included on the pro-forma Folio for the "routed-to" reservation and not for the "routed-from" reservation. Generating a proforma folio does not actually post the anticipated charges to the reservation account and is not regarded as an actual invoice or bill; it is a provided as an estimate only.
Note:
You cannot generate a pro-forma folio for a reservation in Checked Out, Cancelled, and No Show status.