Return to Vendor Without Reference Document

Hi, Can you please help me with the below requirement?

Requirement Summary :

I need to transfer stocks from one entity to another entity within our group of companies and return the stock if the receiving company wants to send it back to the source company.

Issue :

I tried using the IR-ISO process to transfer the stocks from Entity A to B. However, I couldn’t make a Supplier Return against the inter-company PO Receipts because our organization is a Process-Enabled Organization. I believe that Oracle R12 does not support Supplier Returns against Intercompany PO Receipts for Process-Enabled Organizations. As an alternative to returning the goods to Entity A, I attempted to make a Direct Supplier Return from Entity B.