# Void Label This endpoint allows voiding label by providing either shipment_no or platform_uk_id. Only one parameter is required to uniquely identify a shipment. Endpoint: POST /api/shipment/void_label Version: v2 Security: BearerAuth ## Request fields (application/json): - `shipment_no` (string) Unique identifier of the created shipment. Example: 1222243159 - `platform_uk_id` (string) A unique identifier provided by the calling party (e.g., the caller’s order number). Each platform_uk_id must correspond to exactly one shipment and cannot be reused across multiple shipments. Example: "platformUkId175377917713" ## Response 200 fields (application/json): - `code` (string) Example: "ok" - `msg` (string) Example: "ok" - `data` (object) Example: {}