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Microsoft Entra failed to validate client credentials

AADSTS70002: InvalidClient

Microsoft Entra could not validate the client credentials, usually because the secret, certificate, or client configuration is incorrect.

AADSTS70002authentication

Observed message

AADSTS70002: InvalidClient

Why it happens

  • The client secret or credential sent by the app is wrong.
  • The app is using the wrong client ID or registration.
  • The confidential client auth configuration is incomplete or misconfigured.

How to fix it

  1. Verify the client ID and credential used by the application.
  2. Rotate or replace secrets if the current one is unknown or stale.
  3. Confirm the app is authenticating against the intended Entra registration.

Official reference

Microsoft Learn: Microsoft Entra authentication and authorization error codes

Related errors

AADSTS700016Microsoft Entra application identifier was not foundAADSTS70001Microsoft Entra application is disabledAADSTS70003Microsoft Entra application used an unsupported grant typeAADSTS70007Microsoft Entra application used an unsupported response mode

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AADSTS70002 InvalidClient: causes and fixes | Error Atlas