Hi Hari,
On the Contacts page, you can add and edit supplier contacts and enable contact impersonation, which allows purchasers and technical support to log on as a supplier contact.
Note that a supplier contact's viewing privileges depend on the type of sourcing document:
- For a RFx to which the supplier is added, all the supplier's contacts can see the RFx.
- For an auction to which the supplier is added, the Access Type field indicates whether the auction is company-wide or contact-specific. A company-wide auction is open to all contacts at a supplier company. A contact-specific auction limits auction visibility and bidding to selected contacts within a supplier company.In the auction document, the Access Type field is read-only. The access type is determined by the auction type document.
Check below links for more details:
Check Below Links.
http://scn.sap.com/message/13987762
Surrogate Bidding - Supplier Management - SAP Library
Regards,
Anjan