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.
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ARM returns `StorageAccountNotFound` when the referenced storage account name, resource group, or subscription context does not resolve.
Azure returns `StorageAccountQuotaExceeded` when storage account capacity, ingress/egress, or request-rate limits are exceeded for the workload.
Azure surfaces `StorageContainerQuotaExceeded` when container/account growth or throughput constraints block additional storage operations.
ARM returns `SubscriptionNotFound` when the deployment subscription cannot be accessed due to wrong subscription ID, format, or insufficient access.
ARM returns `SubscriptionRequestsThrottled` when subscription or tenant request limits are exceeded and the control plane responds with throttling.
Azure Table service returns `TableNotFound` when the target table name does not exist in the addressed storage account endpoint.
Azure returns `Unauthorized` (401) when request authentication is missing, invalid, expired, or mismatched for the target endpoint.
Azure returns `ValidationError` when request values violate provider-side semantic rules, even if request syntax is structurally valid.
Azure returns `VMExtensionNotFound` when a VM operation references an extension resource name that does not exist on the target VM.
Azure returns `VMNetworkInterfaceNotFound` when a VM operation references a network interface that cannot be resolved in the current scope.
Azure returns `VMOSDiskNotFound` when a VM deployment references an OS managed disk identifier that cannot be resolved in the active scope.
Azure reports `VMProvisioningStateFailed` when virtual machine provisioning ends in a failed state during OS, extension, image, or dependency setup.
Azure returns `VMSSInstanceNotFound` when a requested scale set VM instance ID cannot be resolved in the target scale set context.