Bulk Update Shipping Service
Updates the shipping service for multiple shipments in a single request. The requested_shipping_service_id corresponds to the service_level.id value returned by the Get Shipping Methods endpoint.
Updates the shipping service for multiple shipments in a single request. The requested_shipping_service_id corresponds to the service_level.id value returned by the Get Shipping Methods endpoint.
Authentication using Personal Access Token (PAT) token
Per-shipment results of the bulk operation