How to add Planned purchase order to cash flow forecast

Dear Friends

I am trying to find a way to bring in the Planned purchase order to cash flow forecast. for the moment purchase order can be added to the cash flow forecast.

in my previous question https://community.dynamics.com/365/financeandoperations/f/765/t/307575, suggest to add the Planned PO using budget module. but I am unable to bring in planned purchase order.

could you kindly provide me the steps to add planned PO to cash flow forecast.

Thank you in advance