Hi Anita.
Thanks for your time for investigating the issue.
Let me explain you in more detail:
1. We have build eParts Store web application for our client on Microsoft Platform. This is hosted on Public IP. We have build Catalog Punchout functionality in the same application.
2. Those who want to access our Catalog, Can call the required URL with provided UserID and Password. (http://www.xxx.com/B2B/PunchoutRequest.aspx).
3. Once UserID and Password gets authenticated, we redirect user to Catalog Page.
4. This Catalog page provide the functionality to search for parts and allow to create Shopping Cart.
5. Created Cart then can be submitted to User's system via POST method as mentioned in OCI 4.0 documentation.
6. This works fine with our Test tool.
7. Our Clients customer have SAP SRM 7.0 and wants to access Punch out.
8. New Catalog is defined in SRM with Punchout Parameter.
9. When SRM user access the Catalog, he can see message "Please Wait, Authentication is in progress...".
10. Users get authenticated by our system.
11. After this we redirect to Catalog page and from this point our problem start. User do not see anything in his window.
12. When we did some debugging at our end we did not found any issue and page was correctly redirected to Catalog Page.
About the NWBC or Portal right now i am not too sure about it. But does it make any difference? I will check and let you know.
Hope this information will be helpful to you for further analysis.
Thanks and Regards
Abhijit