B2B Add On - EDIFACT to IDOC using AS2

Hello there,

I have a B2B scenario where I recieve an EANCOM EDIFACT message for Purchase Orders from our vendor which would have to mapped to the ORDERS05 IDOC.

I have used these links for reference:  http://scn.sap.com/thread/3528910

Learning Series SAP NetWeaver Process Orchestration, business to business add-on 2f EDI Separator Adapter

New Trading Partner Management functionality with the SAP B2B Add-on

I have reached a stage where the EDIFACT message is failing at the IDOC receiver (IDOC_AAE) because the Sender and receiver paramters of the IDOC control record are missing. I am using XSLT mapping to get the EDIFACT XML mapped to the IDOC, including the header.

I am also using TPM to maintain the partner details.

My question is how would I map the Sender party details to the IDOC control record in XSLT?

Regards,

Amith