Ask HN: Has anyone phased out Azure B2C without breaking user flows?

[andy89]

I’m looking at different approaches to gradually move users off Azure B2C. One example talks about handling user creation on the new system only when the user logs in again, instead of doing a full export.

Has anyone tried this? Does it hold up in production or does it break with inactive users / missing claims?

[andy89]

For context, here’s the part I was referring to about the “catch them at login” / JIT idea:

https://mojoauth.com/blog/how-to-migrate-to-passwordless-fro...