Wanted to understand when the Transaction Document as "Interproject" will be used

We observed that Oracle Payables includes seeded transaction document types such as “Interproject” and “Intercompany.” However, when we create an interproject invoice and import the costs back into PPM for the receiving project, the “Interproject” document type is not being picked up. Instead, the transaction is still being processed under Supplier Invoice.

So the motive of this is to restrict the adjustment for transactions imported back to receiver project.

Adding a Screenshot