R/3(MM) -XI- SUS Scenario Error

Hello,

I'm working on SRM Integration: R/3(MM) to SUS Scenario

Whenever i post a PO message to SUS from R/3 (MM module), I see the following error in SXMB_MONI:

ERROR:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?><!-- Call Inbound Proxy --> <SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand=""><SAP:Category>Application</SAP:Category><SAP:Code area="ABAP">APPLICATION_ERROR</SAP:Code><SAP:P1/><SAP:P2/><SAP:P3/><SAP:P4/><SAP:AdditionalText/><SAP:ApplicationFaultMessage namespace="http://sap.com/xi/SRM/Basis/Global">StandardMessageFault</SAP:ApplicationFaultMessage><SAP:Stack>The application triggered an exception
</SAP:Stack><SAP:Retry>M</SAP:Retry></SAP:Error>

TRACE:

"An error occured within an XI interface: SLD system SNT_BS is not known Programm: SAPLBBP_BD_MAPPING_SAPXML1; Include: LBBP_BD_MAPPING_SAPXML1F1Y; Line:92 "

Can anyone help me resolve this problem ?

Thanks,

Regards,

Sridhar