Hi Anurag,
The portal access for bidders from SUS for decoupled scenario is not supported by standard.
You will have to ask your portal consultant to customize this for you.
You can check the below info note
1476447 - SAP SRM 7.0 EHP1 : Important info on New Functionality
- Bidder can access RFX Documents & Auctions in External Supplier System
through a POWL Application via Netweaver Business Client (NWBC). Bidder will not
be able to access the RFx and Auction documents via Portal using the SAP
delivered bidder role for External System and with the existing portal content
for this role. To configure External Supplier System via Enterprise Portal
relevant iView, Page and workset has to be created and assigned to the portal
role for bidder ( Bidder role found under the path SAP -> Specialist ->
SAP SRM 7.0 -> EHP1-> Supplier Collaboration). To reach the SAP provided
Enterprise Portal content follow the path: Portal Content -> Content provided
by SAP -> Specialist -> SAP SRM 7.0 ->EhP1 and its subfolders.
Hope this clarifies your query.
Regards
Sam