i_PromoCodeRenewReservationAfter_Minutes
For the latest version of Commerce Server 2007 Help, see the Microsoft Web site.
When PromoCodeReservation runs, it renews any promotion code reservations after this amount of time has elapsed since the reservation grant time. Therefore, if a shopping session is prolonged, any promotion code reservations made for the shopper will not expire and will continue to be renewed as long as there is basket activity. This ensures a consistent user experience.
The default value is 20 minutes; there is no upper limit. If you provide a negative number, the smaller default value and i_PromoCodeReservationExpiration_Minutes is used. This value must be greater than zero and less than or equal to i_PromoCodeReservationExpiration_Minutes. As a suggestion, try making the smaller default value two-thirds of the total reservation window.