consignment Inventory valuation rules impact on PO receiving distribution

Summary:

I've been testing the impact of different values on the Consignment inventory valuation rules in cost profile to the Consignment PO receiving accounting and here I found two problems which need to be clarified:

1.if the Accounting Distribution Basis is set to At Zero Cost and Create Accounting is set to No, then the cost account status of the PO receipt will be Excluded from accounting and the receipt account status will always be Distribution processed. my question is will the receipt accounting status have any impact on period close? or if there is any way to change it also into Excluded from accounting status?