Hi, Aleem
If you are working with NWBC in SRM and SUS,and are using live auction form SRM, you need to set up in SRM side in BBPV_LA_PROP table this parameters:
msg.ABAP client.protocol
msg.ABAP client.protocolext
msg.ABAPclient.serverHost
msg.ABAPclient.serverHostext
msg.ABAPclient.serverPort
msg.ABAPclient.serverPortext
Regards