Use this consolidated error code index to navigate HTTP, AWS, Azure, and GCP failures from a single technical library. Each entry links to source-backed diagnosis, root-cause patterns, and production-focused remediation steps. Start broad, then drill into provider pages, operational categories, compare guides, or incident playbooks.
62 error codes available
99 error codes available
63 error codes available
22 error codes available
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Azure AADSTS53003 is a policy-based rejection. It indicates that while the user’s credentials were valid, the sign-in attempt was blocked by a specific Microsof...
Azure AADSTS50056 indicates that Microsoft Entra ID received a password-based sign-in request, but the targeted user account does not have a valid password conf...
Azure AADSTS65001 is a permission-grant failure indicating that the application is requesting API scopes, such as Microsoft Graph permissions, that have not yet...
Azure AADSTS65004 is a consent-grant failure indicating that the user either explicitly declined the requested permissions or the consent flow was interrupted b...
Azure AADSTS90093 is an administrative-approval failure. It indicates that the application is requesting high-privilege API scopes, such as `Directory.Read.All`...
Azure AADSTS70011 is a request-shape failure indicating that the `scope` parameter in the authentication request is malformed, misspelled, or contains scopes fr...
Azure AADSTS50074 is a high-assurance requirement signal. It indicates that the current authentication attempt or session context lacks the strong authenticatio...
Azure AADSTS50158 is a federated security signal indicating that Microsoft Entra ID requires an additional authentication challenge from an external provider, s...
Azure AADSTS50012 is a client-authentication failure indicating that the supplied client secret, certificate, or JWT assertion is invalid, expired, or does not...
Microsoft Entra ID returns `AADSTS700016` when the client application identifier cannot be found in the target tenant directory.
Azure returns `VMOSDiskNotFound` when a VM deployment references an OS managed disk identifier that cannot be resolved in the active scope.
Azure Table service returns `TableNotFound` when the target table name does not exist in the addressed storage account endpoint.
Azure returns `VMExtensionNotFound` when a VM operation references an extension resource name that does not exist on the target VM.
Microsoft Entra or Microsoft Graph returns `AADServicePrincipalNotFound` when the requested service principal object cannot be resolved in the active tenant.
GCP OK means the operation completed successfully. In HTTP-mapped APIs this corresponds to HTTP 200 and is a success status, not an error condition.