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← cd ~/errors
// entra id sign-in errors

App registration and tokens errors

Mismatches between what an app sends and how it's registered in Entra: redirect URIs, client IDs, secrets, certificates, scopes and tokens.

How to investigate

  1. Compare what the app sends (client ID, redirect URI, scopes, tenant) with the app registration.
  2. Decode the token or request: the JWT and SAML decoders on this site show exactly what was sent.
  3. Check the app's credentials (secrets and certificates) and whether the service principal exists and is enabled in this tenant.

Common errors (18)

More codes from Microsoft's reference (193)

Look up any AADSTS code