A valid ReceiptDeliveryResponse

Operation was canceled.

The request is invalid, and subsequent calls will continue to fail; do not repeat the call.

An invalid bearer token has been provided. The call may be repeated if the provided bearer token is updated.

The request is invalid, and contains request data in an unsupported format. This call may be repeated if the content is changed to a supported format.

The request processing failed with an unknown error, and the processing state of the operation is indeterminate. Do not repeat the call without additional analysis.

The device does not have the ability to respond to the requested operation; do not repeat the call.

The device is not available because it is currently servicing another call. This can be repeated at a later time, or cancel may be called to end the current operation.

The Device did not respond in a timely manner. This can be repeated at a later time.