How to trace netting batch or PPR for Invoice with the status of 'Selected for Payment'

Hi everyone,

I am having problem in Oracle R12 Payable Invoice. Problem is we have an invoice with the status of 'Selected for payment', now I don't know against which payment process request or netting batch this invoice is withhled. I am unable to cancel this invoice or do any adjustment, modification in it since this is resereved by any PPR or Netting batch which I don't know. My first question is how are we going to trace that particular PPR or netting batch which is holding this invoice. And how are we going to release this invoice from the status of