Is it possible to stop PO communication to supplier based on a header DFF

Summary:

is it possible to have custom logic in communicate purchase orders / change orders to supplier program to not send the purchase order to supplier based on a Purchase order header DFF.

Content (required):

In a implementation, on the requisition we have a DFF flowing from Purchase Requisition to Purchase orders which are based on touchless flow. Based on this DFF we are looking to include logic in the communicate PO to supplier process where in case this is Y, the purchase order will not be sent to supplier (via email). This become critical as in a touchless flow, Buyer would not have a chance to intervene and change the communication method to none in this case.