Confirm Receipts Workflow selected Purchase orders

Hi

I need a clarification on Confirm Receipts Workflow selected Purchase orders. I know this request works based on the following conditions

  Destination or Deliver-To Type is Expense

• Receipt routing is Direct Delivery

• Matching is 3-way

• Need-By Date or Promised Date is prior to the current date, or invoice has been

  matched to PO

Based on the above conditions i created a Purchase Order with Destination Type as Expense, Direct Delivery, Matching 3-way , Invoice Match level Option as PO , Need By date 01-Jul-2016. Now i created invoice from payables side and matched the invoice with PO without receiving..

I Created the Purchase Order on 31-May-2016 and Invoice Matched with PO on the same day.