Hight Level Process flow from PN to GL , AP and AR.

Hello

Going through the Documentation; here is the process flow that I understand and following are the residue questions arose from the same:

***Expense Leases: 

                                   Create Lease with payment Terms details,

                                   Finalize the Lease (CP: Schedule and Items) ,

                                   Approve it,

                                   Export to Payables Interface Table  (CP: Export Payment Items to Accounts Payables)   

                                   Importing Invoices to Invoice workbench(From Payables Run CP: Payables Open Interface Import )

                     Question: At this point What happens to the Invoices imported in to AP? ....the cash lines...or Non-Normalized lines?

                     Question: is there any action required by the AP Admins on these AP Invoices?

                                   Normalized Lines: From Oracle Property manager; Run CP:  Transfer Normalized lines to GL