Hi

I don't think it is possible to solve such requirement in an easy way.

We have a situation that require separation into two instances, and had to develop interfaces between the two instances.

You might need to interface or have double insert and update of vendors.

We are receiving goods on the purchasing instance. We match invoices to the PO and receipts in the Purchasing instance.

We had developed an interface to load the "approved" invoices into the financial - payables instance. In that instance the invoices are considered independent, and are not matched to PO. Payment to suppliers is done in the financial - payables instance. 

Dina

Suggestion - You can load approved invoices as matched thru Payables Open Interface Program into the financial instance. Only problem is your PO's will not have the Invoice Billed details unless you interface them back to Purchasing from Payables.