Inbound Proxy synchronous implementation

Question

Hi Experts,
I am newbie to ABAP proxy implemenation.I have to implement Inbound Synchronous ABAP Proxy. The preface looks like below.
              (a-> DT_Sender_Req)                   (b-> DT_Receiver_Req)
.Net App -
>   SAP PI7.1 -
>   SAP ECC6.0
              (<-d DT_Sender_Resp)                  (<-c DT_Receiver_Resp)
.Net application will send the purchase order and will fetch the PO details from SAP ECC6.0.The response will be send back to .Net application.To implement this , synchronous message is to be configured. I have query regarding the XI scenario configuration. Please guide on the following.
1. For .Net application, I have to get the message structure i.e. WSDL from the respective team.What all
   details I have to get from .Net team?
2. Which adapter I can use for message exchange with SAP-PI?
3. Do I have to create 4 data types(DT)
   (a) : DT_sender_Request
   (b) : DT_Receiver_Request
   (c) : DT_Receiver_Response
   (d) : DT_Sender_Response
   Should message in flow (a) and (b) have the same message structure
4. For catching the exception in SAP ECC6.0, what would be the Fault Exception structure in (c)?
Request experts to post the answers making reference to the question numbers i.e. 1,2,3,4 etc
Regards
Alice Rebecca

Answer 1

Alice@xi wrote:
Hi Experts,
>
>
> I am newbie to ABAP proxy implemenation.I have to implement Inbound Synchronous ABAP Proxy. The preface looks like below.
>
>               (a-> DT_Sender_Req)                   (b-> DT_Receiver_Req)
> .Net App -
>   SAP PI7.1 -
>   SAP ECC6.0
>               (<-d DT_Sender_Resp)                  (<-c DT_Receiver_Resp)
>
>
> .Net application will send the purchase order and will fetch the PO details from SAP ECC6.0.The response will be send back to .Net application.To implement this , synchronous message is to be configured. I have query regarding the XI scenario configuration. Please guide on the following.
>
> 1. For .Net application, I have to get the message structure i.e. WSDL from the respective team.What all
>    details I have to get from .Net team?
You will need to understand the data structure and thus create a sync. outbound interface and then share the WSDL with them
>
> 2. Which adapter I can use for message exchange with SAP-PI?
>
This will be a SOAP to Proxy scenario so use the SOAp adapter at the sender side and XI adapter at receiver
> 3. Do I have to create 4 data types(DT)
>    (a) : DT_sender_Request
>    (b) : DT_Receiver_Request
>    (c) : DT_Receiver_Response
>    (d) : DT_Sender_Response
yes 4 DT
>    Should message in flow (a) and (b) have the same message structure
Depends. If they are different, you mapping can handle the transformation.
> 4. For catching the exception in SAP ECC6.0, what would be the Fault Exception structure in (c)?
>
> Request experts to post the answers making reference to the question numbers i.e. 1,2,3,4 etc
>
> Regards
> Alice Rebecca
Yes use fault messages.
Additional references:
Walkthrough - SOAP  XI  RFC/BAPI
Fault messages -
Fault Message Types - A Demo (Part 1)
Handling Web Service SOAP Fault Responses in SAP NetWeaver XI