Demantra Sim Engine is considering current month as past and looking for history in current month

Demantra Sim Engine is considering current month as past and looking for a good amount of history in current month to generate decent forecast from next month onwards. This is working as expected due to max sales date.

We collect sales every day hence the max sales date is current month. As sales are not fully collected for the current month, when planners are running sim during the month i'ts not generating good forecast . Business dont want to override the history for the current month.

Is there any parameter(other than max sales date) to let SIm know not to consider the current month as past? we cannot change the max sales as we're collecting sales everyday.