AADSTS50034 Severity: Medium Account not found
Microsoft Entra cannot find the specified account in the tenant. Typos, old email addresses, or an account in a different tenant are the common causes.
Affected systems
Symptoms
- AADSTS50034 immediately after entering the email
- Message 'We couldn't find an account with that username'
- Other accounts work fine
Possible causes
- Typo in the email address
- Account was renamed or deleted
- You enter a personal address but the system looks in the corporate tenant
- Account only exists in another tenant of the organization
Solutions
1.Check the email address
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Rule out typos, especially in long addresses with hyphens.
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After a domain migration, verify whether you should use the old or new address.
2.Confirm with IT that the account is active
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If you are sure the address is correct, ask IT whether the account is active.
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Some tenants automatically deactivate accounts after long inactivity.
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During tenant migrations the account may have moved to a new tenant.
3.Personal vs work account
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If your personal address is also used for work, mix-ups happen.
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Open https://login.microsoftonline.com in a browser and observe which account picker appears.
AADSTS50034 is usually a typo or an account-confusion problem. A private browser window and clean email entry diagnoses it in a minute.