Confusing MRP date


On the learning page, the example for Process MRP has
Last Run date on 17/10/2023
Cut Off Date on 27/10/2023
Schedule Start Date on 30/10/2023
So I understand that the last time this process ran is on 17/10, the expired date is on 27/10 but the schedule date aka the first date is quite confusing. Is it the restart date? If not it quite conflicts with the cut-off because the start date is later than the end date.
Anyone has explanation for this case. Thank you