更新情報：ベンダー出荷API v1で個口ラベルの取得機能がサポートされました

The new GetShipmentLabels operation of the Vendor Shipments API v1 offers programmatic access to small parcel labels for vendors. This operation requires the Amazon Fulfillment Role.

For more information, refer to GetShipmentLabels in the Vendor Retail Procurement APIs v1 Use Case Guide.