Finding corresponding entity&section of an intercompany transaction that hits an entity & section

How to find the originating entity and section number of a transation that ends up in another entity and section in the General Ledger.

Currently our ERP COA has Entity, Section, Account, ICP (intercoy entity number) as segments but we dont capture originating Section number of the ICP in the COA segment.

E.g. PPM entires will hit Entity/Section for both the receiver and the provider, however only the ICP(entity) number is tored at GL ledger..

Am i not bale to construct whihc section it originate from?

How can build report/data model to show Section number of the ICP segment? I.e. In need the Corresponding section number for the transaction.