RFx notification after Accepting the Bid

Dear All,

I am working in RFX process in SRM 7.02,

1. When the RFx response is submitted from bidder, the Buyer open the Rfx and Accept or reject the Rfx Response .

The Notification should be send to Bidder about the Accept or Reject information.

2. When the RFx Deadline date is going to reach.(i.e for E.g. the deadline date is end in another 3 days), The Buyer and bidder both of them should get a notification about the deadline date information.

Kindly guide me , how to achieve the above requirements.