Hi Sabita,
You just need to go to the navigation and remove the Sign-in page there in the Authentication.
Hope it helps!
Hi Sabita,
It means that the authentication process is not Completed. Please add a breakpoint at the Start activity of the "webCallback_POST" microflow and go next activities and check which activity is breaking. you will find which activity is breaking.
Always debug whenever something is breaking in a microflow.
Hope it helps!