MFA Flow Username Mangle Question

[Cantor, Scott]

FWIW, this is not meant to be handled by the IdP itself, but by the login flow(s). If they don't rely on user entry, they are expected to support a function mechanism to supply the username and that should be customizable.

The MFA flow doesn't have any notion of this and wouldn't have any way to define anything as an input to another flow in any cross-mechanism sort of way.

-- Scott