Debit Invoice for Return To Vendor agaist PO Receipts not created

hello

We have setup to create the Debit Invoice automatically(The supplier site is marked to allow RTS transactions )when 'Return to Vendor' is created against GRN. But before the orignal invoice is passed in A/P. Return to supplier is created against PO receipt and invoice in A/P was passed later on. Is there any was to create automatic debit invoice in A/P now.

Thanks

Gobind Ahuja