Hi,
I'm joining this flow (may be late), but I've more or less same issue than @Datta Pawar .
I'd like to permit user to change their signin Email address after registration, but it's look like not possible.
I envisaged to use user flow massively but it's look like not possible to do what I want.
I supposed that due to the Base policy that not the same in both site "User low"/ "custom policies"
=> So it means that I must build all policies through Custom ones :( or deal with my client to decide not allow update of the SignIn mail ^_^
@Saurabh Sharma did you know if their is some change in close future to permit usage of Both, or if new functionalities will comming in "User flow"?