Open ended Soap Execute Pipeline

Hi,
How can i design an open ended pipeline which will accept a raw SOAP request. This request will be internally passed to a SOAP service using SOAP execute and response will be returned.
I’m able to achieve this if i generate the request using a mapper but not able to pass a payload it gives the error,
Document input views only accept JSON-encoded data.

Thanks in advance

Regards,
Roshini

I believe that if you use a binary input you can accept the xml-type input which a soap request would have.