ABAP Client proxy Error(HTTP response contains status code 404)

Hi,

I am using ABAP client proxy to send data directly to XI. But in the transaction code SXMB_MONI in R3, I am getting the following error:

" SOAP:mustUnderstand="">

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

<SAP:Code area="INTERNAL">HTTP_RESP_STATUS_CODE_NOT_OK</SAP:Code>

<SAP:P1>404</SAP:P1>

<SAP:P2>Not Found</SAP:P2> "

could you please help me in this, what might be the problem.