LoadRunner Webservice Soaprequest

[R_Selanmo_H]

Hi Everyone

I've been having a bit of a battle with load runner 2020 and LR 12.6 in trying to get a successful response to a web service request and tried multiple ways as below 

First: I tried  to import WSDL which have a MTOM Body but getting error that WSDL is not loaded successfully. 

Second : I tried to add a soap request as below but get an internal error below sample of the structure used 

any recommendation 

 soap_request("StepName=SOAP Request",                                        
        "URL=http://0.0.0.0:000/example",                                        
        "SOAPEnvelope="
        "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\">"
"<soapenv:Header>"
"<UserMessage>"
"<Message>"
   "<MessageId>d514215-10fd-41c2-8f23-kk6e360bd09e</MessageId>"
"</Message>"
"<Attachment>ID:000</Attachment>"
"</soapenv:Body>"
"</soapenv:Envelope>",                    
        "SOAPAction="                                           
        "ResponseParam=response",                                        
        "Snapshot=t1000002416.inf",    
"UserHandlerName=LrWsAttachmentsHandler",        
        LAST); 

-Also I tried adding request in "SOAPACTION" instead of above  and adding wsdl in SOAPEnvelope section but get same internal error 

Thanks

[Fei Gao]

Are you now at LR2020? Have you tried with LR2020SP3?

Which toolkit are using? .net, axis or wcf?