Receiver determination

Hi Experts,

I am sending an IDoc message from R/3 system to XI system.

The IDoc message is generated in R/3 system(WE05) but it is not in XI system(SXMB_MONI).

When I am executing the tcode IDX5 the message has come but the error is as given below:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

- <!-- Receiver Identification

-->

- http://sap.com/xi/XI/Message/30" xmlns:SOAP=" http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="">

<SAP:Category>XIServer</SAP:Category>

<SAP:Code area="RCVR_DETERMINATION">NO_RECEIVER_CASE_ASYNC</SAP:Code>

<SAP:P1 />

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText />

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack>No receiver could be determined</SAP:Stack>

<SAP:Retry>M</SAP:Retry>

</SAP:Error>

Please help me !!!!!!!!!1

Thanks in advance.