ARM / DeploymentsAzure Resource ManagerKnown error

DeploymentFailed

The envelope, not the letter

Deployment wrapper

What the error looks like

Error code
WHO — identity
WHAT — action
WHERE — scope
Policy
Correlation / trace

{
  "code": "DeploymentFailedCODE",
  "message": "At least one resource deployment operation failed. Please list deployment operations for details.",
  "details": [
    {
      "code": "ResourceDeploymentFailureCODE",
      "message": "The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed'.",
      "details": [
        {
          "code": "SkuNotAvailableCODE",
          "message": "The requested VM size for resource 'Following SKUs have failed for Capacity Restrictions: Standard_D8s_v5' is currently not available in location 'westeurope'."
        }
      ]
    }
  ]
}

What you told me

“It just says DeploymentFailed.”

you · just now

Let's read it.

RTFE · seen

What it actually says

DeploymentFailed, InvalidTemplateDeployment and ResourceDeploymentFailure are usually wrappers. They tell you WHERE the deployment failed, not WHY. The why is in the inner details.

Azure outage? No. The wrapper isn't the problem. Open it.

The fix

01Expand 'details' until you reach the innermost code.
02If the portal only shows the wrapper, list the deployment operations.
03Search for the innermost code — not 'DeploymentFailed'.

Azure CLI — list failed operations

az deployment operation group list \
  --resource-group <rg> \
  --name <deployment> \
  --query "[?properties.provisioningState=='Failed'].properties.statusMessage"