Can we create an Internal Requisition for Oracle ATO Buy Back-to-Back Process?

We are in EBS 12.1.3 Release. In Order Management, there is a standard process for ATO Buy Items, known as Back-to-back order - when SO line is booked, ATO workflow creates an Purchase Requisition for the bought-out ATO Item.

Can we use the same process for Internal Purchases? In stead of Purchase Requisition to external supplier, can we create and Internal Requisition if we define/assign a Transfer sourcing rule for that item in shipping org?

Thanks in advance for responses.