Hello
I have been faced with the same challenge without a practical solution insight . My take to that issue is to load all the transactions pertaining to that contract up to the payment clearing , which is hell lot of work and not practical creating PR, PO , GRVs , Posting Invoices then do a payment run but nothing must be sent to the bank.
The best is try an convince the client to take over the balances move on from there .
Message was edited by: Stanley Kasukusa