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KyleMain-9503 asked Givary-MSFT commented

What happened to this error: AADSTS50034 - UserAccountNotFound?

I work in a product that ingests Azure AD logs from many different customers. Up until around 4/21/2022 all of the customers were having logs with the AADSTS50034 - UserAccountNotFound error. On 4/21/2022 those logs suddenly stopped for every customer. We are still getting all of the other userloginfailed events, but that one error has specifically stopped suddenly. Did Microsoft change something in the logging so that the "UserAccountNotFound" error is no longer produced? According to this document it seems it should still be a valid error which is logged: https://docs.microsoft.com/en-us/azure/active-directory/develop/reference-aadsts-error-codes

I cannot find any references in the Azure AD updates or anywhere else. Since it happened for every customer at the same time, and nothing has changed with our parsing, I am thinking that Microsoft has done something with their logging so this error is no longer logged.

198354-screen-shot-2022-05-02-at-20230-pm.png


azure-active-directoryazure-ad-authenticationazure-ad-libraries
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@KyleMain-9503

Thank you for reaching out to us.

Let me investigate about this error AADSTS50034-UserAccountNotFound and will revert back.

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@KyleMain-9503 Thank you for your patience. I tried to investigate about this error AADSTS50034-UserAccountNotFound, couldn't find much info as this is generic Azure AD error.

Would like to understand environment details of your client who reports this AADSTS50034, if you can share the correlation id, time stamp from one of the user/client who reported this issue so that i can investigate in which scenario this error gets generated.

Let me know if you have any questions or we can connect offline to discuss further on the same.



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