No sign-in logs in AD B2C yet users do sign-in

Question

Hi there,

our users sign-in into the AD B2C with single-sign-on via a custom identity providers. It works well, however, when I look in the sign-in logs, I see no entries.

Steps to reproduce:

• Create identity provider with openID
• Create a user flow and set custom identity provider created in previous step
• Have user sign-in with the custom identity provider
• Go to Azure AD B2C > All users > Sign-in logs ... or on the user's card click "sign-ins" ... the log is empty. Tried to switch interactive/non-interactive, date range etc.

Sign-ins for my own account show correctly.

Additional info:

1. user ids are fetched from the federated accounts (openID)
2. sign-in is done in a React single-page-application using MSAL v2 + an app registered under B2C handles the tokens
3. No VPN solution in place

Below is an overview of a user that signed-up-in via the custom identity provider but its sign-in logs are empty.

What could be wrong?

Answer 1

check : Block sign-in : YES

and location not spécified

Answer 2

Few questions and suggestions

1. Where are these ids located.
2. How are they trying to login ( VDI / Application / on prem app servers etc)
3. Do you have a vpn solution in place which is being utilized.
4. Try finding user here https://protection.office.com/homepage
5. Sign in using your work or school account. In the left pane of the Security & Compliance Center, click Search, and then click Audit log search.
6. check you Azure tenant and confirmed that "Microsoft Authenticator passwordless sign-in" method is not enabled (Azure Active Directory > Security > Authentication Methods).