Resource type handler error codes - Extension development for CloudFormation
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Resource type handler error codes

One of the following error codes MUST be returned from the handler whenever there is a progress event with an operation status of FAILED.

  • AccessDenied

    The customer has insufficient permissions to perform this request.

    Type: Terminal

  • AlreadyExists

    The specified resource already existed before the execution of this handler. This error is applicable to create handlers only.

    Type: Terminal

  • GeneralServiceException

    The downstream service generated an error that doesn't map to any other handler error code.

    Type: Terminal

  • InternalFailure

    An unexpected error occurred within the handler.

    Type: Terminal

  • InvalidCredentials

    The credentials provided by the user are invalid.

    Type: Terminal

  • InvalidRequest

    Invalid input from the user has generated a generic exception.

    Type: Terminal

  • NetworkFailure

    The request couldn't be completed due to networking issues, such as a failure to receive a response from the server.

    Type: Retriable

  • NotFound

    The specified resource doesn't exist, or is in a terminal, inoperable, and irrecoverable state.

    Type: Terminal

  • NotStabilized

    The downstream resource failed to complete all of its ready-state checks.

    Type: Terminal

  • NotUpdatable

    The user has requested an update to a property defined in the resource type schema as a create-only property. This error is applicable to update handlers only.

    Type: Terminal

  • ResourceConflict

    The resource is temporarily unavailable to be acted upon. For example, if the resource is currently undergoing an operation and can't be acted upon until that operation is finished.

    Type: Retriable

  • ServiceInternalError

    The downstream service returned an internal error, typically with a 5XX HTTP Status code.

    Type: Retriable

  • ServiceLimitExceeded

    A non-transient resource limit was reached on the service side.

    Type: Terminal

  • Throttling

    The request was throttled by a downstream service.

    Type: Retriable