Cost Roll Up Scope Clarification For "Configured item" Scenario?

We have both buy and make configured item scenario.

When we schedule the cost roll up with Scope "Unprocessed purchase order and Work Order",

Q1) what exactly is the meaning of Unprocessed? PO and WO can have various status, which statuses are being considered as "unprocessed" by the cost roll up? PO status can have: "Draft, Open, Closed for Receiving, Closed", WO status can have: "Unreleased, Released, Complete, Closed".

Q2) I have "Daily" scheduled the cost roll up with scope "Unprocessed purchase order and Work Order" and "include orders from" 1st October. Lets say on 1st october two configured item created A*1, A*2. For A*1 cost got rolled up and published successfully. But A*2 it did not. On the next day when schedule run comes it creates a new scenario automatically, system automatically advances "Include orders from" to 2nd oct for this new scenario. Simmilarly the parameter keep advancing with each run. Now issue is, on 1st Oct A*2 did not get published, on next day "Include orders from"