Logic Behind Gross Forecast Spread at Day Level

Summary:

Hello,

We are having replenishment plan and we are importing the forecast from Demand Plan which is at Month Level. I would like to know the logic behind the spreading of Gross forecast.

For Example - July 2025 is having 31 days and we have kept the Final Shipments forecast in the Demand Management for the month of July as 30 units.

Now in Replenishment Plan, if we see the Gross forecast, it is keeping 29- July as 0 and rest all as 1 units.

Need to understand what logic it is using to spread the forecast.

All Days are working days in Calendar .