runman1999

http://scn.sap.com/thread/3208936

1: if info record maintain as gr date, during the PO creation, which date will be use to determine the pricing?

While Posting The GR system Takes the price from info record on the GR date within the Valid Period.

2: how system work or behave if I choose manual as the pricing date category?

User Can specify the Date Manually to Pick the Price.

3: if choose no control, which date will be using for price.determination?

System Takes PO Date as Pricing Date.

4: if invoice posting, would there be relevant with invoice posting?

No,  Not relevant to Vendor Invoice Posting

5: is current date meaning the today's date will be used to determine price?

Yes.