You can restrict which negotiation lines a supplier can access and respond to. You can restrict access at the line, lot, or group level.
To restrict a supplier's access to a particular negotiation line:
Follow the instructions in Inviting Suppliers to Participate in a Negotiation to search for the suppliers you wish to invite and to add them to the negotiation invitation list
On the Create Negotiation: Suppliers page, select the supplier site/contact and click Control Access.
On the Suppliers: Control Access page, you see all the lines, lots and groups defined to the negotiation. There is also a column for each supplier/supplier site you selected on the previous page. By default, all suppliers/supplier sites have access to all lines, lots, and groups for the negotiation.
Deselect the lines, lots, or groups to which you wish to deny a particular supplier/supplier site access.
Click Apply. You return to the Create Negotiation: Suppliers page.
Continue defining your negotiation