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B2C Authentication error Multiple entities are present

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Posted on by Nilo365

Getting this error for random accounts when logging in. A "good" account can start getting the error at some point attempting re-authentication Screenshot 2023-07-07 at 6.48.42 AM.png

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Lucas001 2,595 Super User 2026 Season 1 on at

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Hi @adfgvsdfgsdfghs,

it seems there are multiple users connected to that account inside your contact entity. At least the error refers to that.
Did you create the login page yourself or are you using a template?

Usually power pages permit the existence of two identical users in one page.

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Glide 19 on at

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We have a dozen of those contacts (using Azure AD B2C).

I'd really like to know what is creating them duplicates.

They are usually created on the same couple of seconds.

This post is talking about it but it doesn't tell how to really fix the thing.

We are thinking about preventing that with a plugin but it's not pretty...

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Lucas001 2,595 Super User 2026 Season 1 on at

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Hi @Glide,

if that error persists, I would actually try setting up a ticket with microsoft.

Has it always been there or did it stop during a certain preiod of time?

THis sounds like there's an issue in the backend if multiple users are experiencing it that way.

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Glide 19 on at

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Sorry I didn't see your answer.

A few months later... I'm encountering this issue again.

> Has it always been there or did it stop during a certain preiod of time?

Not sure about that but since it happens to a very few number of users I'd say it has always been there, just not been aware of it from the start.

This time certain users have this error without having the multiple External Identities mentioned in the Medium post.

I'm going to create a ticket as you suggested.

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