How does Delivery Date Overrun work in Pre-processing variant for PP_ORDER archiving?

PP_ORDER Pre-processing variant has an enactment of Delivery Date Overrun. I wanted to recognize however this works considering pursuing script - 

1. Residence clip 1 & Residence clip 2 is acceptable to 0

2.  Selection Status illustration - acceptable arsenic closed but not deleted

3.Deletion emblem enactment selected

If Delivery overrun is selected arsenic 0, volition it prime each the eligible orders till strategy date? If we selected 90 days, truthful volition it acceptable indicator to those orders whose plants were closed 90 days earlier the existent strategy day oregon it works differently? How bash we place that?