What's the difference between the award end date and award close date?

The award end date is the date on which the award comes to an end.

The award close date is derived by adding the number of days in the Days to Close business implementation option to the award end date. Suppose that the Days to Close value is 90 days and the award end date is 31-Dec-2025, then the award close date is 31-Mar-2026. Expenditures can be recorded and controlled until the award close date, if the close date is available. If you don't want to record expenditures after the award end date, then remove the close date.