How to set the buyer's name in a purchase order from the sales order

Summary:

The Buyer's name should come from the Sales Order, the person creating the Sales Order should be the Buyer's name. Currently, the Buyer is defaulted based on the Business Unit selected.

Content (required):

As part of the default DOO_OrderFulfillmentGenericProcess orchestration process there is a task type - "DOO_Procurement" to Create Purchase Request. The "External Integration Routing Rule" defined for "DOO_Procurement" task type, further calls the "Connector to Oracle Fusion Procurement System". Need to learn more about the connector to Oracle Fusion Procurement system, specifically how it works and the backend processes involved, so that can be customized as per requirement.