Shipping carrier.
| Property | Type | Description | Required or Optional | Available Version |
|---|---|---|---|---|
| externalReference | String | Unique code, reference, or identifier for the shipping carrier used by external systems. | Optional | 63.0 |
| shippingCarrierMethods | ListConnectApi.ShippingCarrierMethodInputRepresentation | List of shipping carrier methods. | Required | 63.0 |