Sellers Option

Imported from previous forum

[ original email was from Cardad Wilson - caridad.wilson@us.coopers.com ]
In a New Single Order message when you have a SettlmntTyp of 6 (Future) or 8 (Sellers Option) a FutSettDate is entered indicating the specific date in YYYYMMDD format. If the order is Good Till Cancel (TimeInForce = 1) and the Sellers Option is to settle 10 days after the trade. What do you put in the FutSettDate? The settlement date is not known until the trade is made. Is there another Tag that will indicate a number of days not a specific date?