Azure B2C gives "undefined" as the error message when signing up with a duplicate account

Ryan White 36 Reputation points
2023-01-06T14:09:31.027+00:00

Using the default template, on a SignInSignUp flow with no customization the web service returns:
{"status":"400","errorCode":"ViralErrorUserCreationConflict","message":"A user with the specified ID already exists. Please choose a different one."}

But the UI gives undefined as the error:
276932-image2.png

It appears to be a bug on Microsoft's part, any way to fix this? Is there somewhere to file this bug report?

Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
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  1. James Hamil 22,436 Reputation points Microsoft Employee
    2023-01-12T22:55:59.1866667+00:00

    Hi @Ryan White @Kezia Shirazi @Baud, Patrick , This is a UX bug that is currently being hotfixed with a deployment early next week. I'm sorry you're experiencing this! Please let me know if there's anything else I can help with.

    If this answer helped you please mark it as "Verified" so other users can reference it.

    Thank you,

    James

    1 person found this answer helpful.