SAP PI 7.3 BPM - invalid content type for SOAP: TEXT/HTML; HTTP 403 Forbidden

Hi,

I am following william li's blog for bpm scenario in PI 7.3 single stack.

I have soap receiver channel for sending PI message to BPM.

target url -http://localhost:port/MessagingSystem/receive/JPR/XI

used logon data for non sap system ,gave user id and password.

But in comm channel monitoring the error is coming as :

MP: exception caught with cause com.sap.engine.interfaces.messaging.api.exception.MessagingException:

java.io.IOException: invalid content type for SOAP: TEXT/HTML; HTTP 403 Forbidden

Please advise on it.

Regards