What are the configurations required in PI 7.3 for connecting to webMethods?

Hi experts,

Here is my scenario(sychronous),

SAP ECC------->PI 7.3------->WebMethods------>some target system

sender side:  ABAP proxy

receiver side: SOAP adapter

I need to send data from ECC to target system.

1.What are the configurations required in PI to connect to Webmethods.

2.If the data doesnt get processed succesfully at webmethods or the target system,PI needs to send an alert email with the payload of the message to receipients.How do I achieve this requirement.

Thank you in advance,

Regards,

Raghu