Proxy Authentication Required HTTP Error 407

Hi All,

I am using PI 7.1 and have a SOAP <-> ABAP Proxy scenario.

I have created a WSDL from the "Display WSDL" wizard of the ID and shared the same with the 3rd party vendor.

While creating the WSDL, in the pipelin url, I have provided the HTTP Adapter url and also included &sap-user=XXXXXX&sap-password=XXXXXX

When the 3rd party system is invoking the WSDL using .Net , he is getting the below error:

"HTTP Error 407. Proxy Authentication Required".

Please tell me if I can do someting on my end to incorporate the Proxy credential or the 3rd party .Net system need to do on his end.

regards,

Piyush