SOAP receiver adapter message: PI payload in parameter or body

Hi,

We tried to send messages via the following way to an external partner: SAP --> IDoc > XI (7.1) > HTTP(s) --> external partner.

We tried 2 techniques:

1. using a HTTP receiver communication channel with HTTP destination (using certificate).

As the path prefix in the destination, including parameters, exceeds 256 characters, we had to search for another solution

2. using the SOAP receiver communication channel with a target URL (https string) and indicator 'Do not use SOAP envelope' set

When sending the message, the body of the message, the IDoc XML payload doesn't seem to be read by the partner, probably related to the fact that they do not use the right software to do so, as decribed in forum:

SOAP receiver adapter error (SOAP receiver adapter error.)

Is this the right interpretation and is there no other solution than try to append the payload to the parameterlist ?

Regards,

Jan Macken