Complex PO 'Treat Progressive Payments as Contract Financing'

Hi Team,

I am trying to execute the below scenario through complex PO's. I would like to know your thoughts and share your experience if you have come across the below.

1. Create a Complex PO for Goods,lets say item X for 100 each and total price is 1000, 3.way matching (with document style enabled for Goods and Complex Payments include Schedules and Treat Progressive Payment as contract financing checked).

2. Create a invoice from supplier for 200 (20%) before the goods receipt ( this is not advance amount as the next invoice form supplier will be the left out amount)

3. Receive goods from supplier (receive all 100)