HTTP 500 with SOAP

Hi Y'all,

We are doing a sender SOAP to R/3 scenario. But while the sender webservice is sending the message into XI , they get a HTTP 500 internal server error with their response. More information on the error is “<context>XIAdapter</context>

<code>MalformedMessageException</code>

<text><![CDATA[

com.sap.aii.messaging.mo.MalformedMessageException: No SOAP Envelope “

The webservice gets a response with this error but I don’t see any messages in the MONI. Is this due to ill formed XML or is the sender SOAP adapter missing any settings. I have unchecked “Do not use SOAP added in the URL &nosoap=true.

Any ideas please .

-Teresa