"Invalid content type" error in SOAP receiver

Hi ,

I have ABAP Proxy->XI->Webservice scenario.

I have configured the SOAP receiver with all neccessary information (Target URL pointing to WSDL , proxy details)

However i get the following error when i try sending data to the webservice. "Invalid Content type for SOAP: text/html"

I have seen some forums and blogs on this site on this but still not able to solve the error.

Please advice...