Confirmation approval porcess in Release Process

Hi

I want to know whether its possible to set up confirmation approval process scenario in case of Release Process in SNC?

I am aware that in PO collaboration approval process can be set up if supplier confirms qty/date which is outside tolerance level set in PO but confirmations created against SA in SNC does not flow back to ECC so how to configure scenario where supplier wants to confirm quantities which are deviating from the release quantities in scheduling agreement.

Regards

Sandhya