Knowledge Management

Question:
Hi all,
I'm facing a problem with obtaining a list of POs and with creating parked Invoices.
First off, I know of the Function that returns a list of POs, but it requires a mandatory entry of Release Group and Code. The Compnay that Im working with does not use Release with POs, and as suc I will be unable to provide then to return a PO list. I know that the ME21N allows for a listing of available POs, even though the Release is not being used. Is there a BAPI that does not have this mandatory requirement? I fail to find one. Or is there a way to edit or create new BAPIs?
The second problem is also related to the first in terms of solution. I believe that I can create a parked invoice that has a PO, but creating invoices wihtout POs is also not possible since the BAPI states a mandatory entry of a PO number and item index within the PO. Is there a BAPI that does not have this mandatory requirement? I fail to find one. Or is there a way to edit or create new BAPIs?
Thanks in advance.
Answer:
unshameful.. bump.
Answer:
unshameful.. bump.