Ability to send notification across all registered suppliers for Forward Auction(Seller Negotiation)

Summary:

Oracle currently support's forward auction(Seller Negotiation), but we are only able to add the bidders to the negotiation manually.

The requirement from the customer is - once the seller negotiation is published the notification should be sent to all the suppliers registered with them in the supplier portal. so that they can participate in this Auction and submit their bids. This is currently supported in create negotiation where in the overview we can enable/disable the response rule to restrict to particular supplier or invite all; this feature is not available in seller negotiation. Any solution or work around for this ?