We are experiencing a strange issue with our application (all environments) where we are getting redirected to ADB2C sign-in (Custom policy with RestAPI provider and Identity API) screen intermittently when trying to change phone number or email. We have tried below so far but no luck - (checked from https://learn.microsoft.com/en-us/answers/questions/69770/mfa-session-doesnt-work-in-azure-b2c-custom-policy?page=1&orderby=Helpful&comment=answer-70797#newest-answer-comment)
- In none of our flows we have added
prompt=login
- We have tried adding
<IncludeTechnicalProfile ReferenceId="SM-MFA" />
- Validated OutputClaim and tried replacing the PartnerClaimType
- We validated Risky users /conditional policies to check if its related to specific users or MFA
Additional information:
So far we have identified below two exceptions when it gets redirected to login screen.
- "A multi-factor poll request has resulted in an unknown poll response" - from browser network tab
- "Phone verification request is throttled" - from ADB2C user audit logs (we checked but could not locate any limits/restrictions which might be causing this)
Request you to share your inputs /suggestions on this which would be a great help.
Many Thanks.,
Anupam