Proxy connection from PI 7.11 to SAP R/3 4.7

Hi all,

We are trying to establish Proxy connectivity between SAP PI 7.11 and SAP R/3 4.7 system.

The proxy connection(SAP PI-->SAP R/3) is working fine from SM59, but when the same is being used in an interface, we see "HTTP 401-Unauthorized" error.

Please provide your inputs to resolve this issue.

Thank you!!

regards,

Amanjot