Our Azure reference focuses on ARM deployment failures, Entra ID authentication and authorization errors, and storage/runtime service exceptions. Each guide maps provider messages to actionable checks across tenant, subscription, resource group, and policy layers used in real operations.
These are the highest-signal Azure pages for common production failures and the best first routes for internal linking and early user navigation.
Priority guide
Authorization Failed
Fix AuthorizationFailed by validating Azure RBAC scope, role assignments, and deny assignments for the exact ARM action and resource path.
->Priority guide
Invalid Authentication Token Tenant
Fix InvalidAuthenticationTokenTenant by acquiring tokens from the correct tenant authority and validating subscription-to-tenant mapping before ARM ca...
->Priority guide
Resource Not Found
Fix Azure ResourceNotFound by validating full resource IDs, subscription and resource-group scope, provider namespace, deployment outputs, and state d...
->When you need broader context, move from provider-specific pages into the matching error category or incident playbook before changing production behavior.
Showing 31-45 of 63.
Azure ConditionNotMet means one or more conditional headers evaluated false; reads can return 304 and writes typically return HTTP 412.
Azure Conflict means ARM or a resource provider rejected an operation because the target resource is in a state, lock, or concurrent operation window that conflicts with the request.
Azure Blob service returns `ContainerNotFound` (404) when the specified blob container does not exist.
ARM returns `DeploymentFailed` as a wrapper error when one or more inner deployment operations fail.
Azure returns `Forbidden` (403) when the caller is authenticated but blocked by authorization, policy, or service-level access controls.
Azure returns `ImageNotFound` when the VM image reference cannot be resolved for the selected region, subscription, or source registry.
Azure Storage InvalidAuthenticationInfo means the request reached Storage, but the authentication metadata is missing, malformed, inconsistent with the signed request, or unusable for the target endpoint.
Azure Resource Manager returns `InvalidAuthenticationTokenTenant` when the access token was issued by a tenant that does not match the target subscription tenant.
Azure InvalidRequestContent means ARM or a resource provider rejected the final request body because required fields, types, or API-version-specific properties do not match the contract.
ARM returns `InvalidResourceLocation` when a storage account name already exists in your subscription but in a different location than requested.
ARM returns `InvalidResourceReference` when a referenced resource is missing or referenced with an incorrect identifier/path.
Azure LeaseIdMissing means a blob or container currently has an active lease, but the request did not include the required lease ID.
ARM returns `NotFound` when a deployment operation references a resource that is unavailable at evaluation time.
ARM returns `OperationNotAllowed` when the requested deployment action violates SKU, quota, policy, or resource-state constraints.
ARM returns `ResourceGroupNotFound` when the target resource group does not exist in the active subscription context.