> ## Documentation Index
> Fetch the complete documentation index at: https://openapidocs.flexforwardship.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> API and documentation updates

# Changelog

All notable changes to the Flex Forward API and documentation are listed here in reverse chronological order.

***

## June 2026

### Added

* **Endpoint:** `GET /couriers` — list courier codes available to your account. Use a returned `code` value as `courier` when creating labels or listing courier products.

***

## May 2026

### Added

* **Endpoint:** `GET /products` — list available shipping products for a courier. Use the returned product codes when creating labels.
* **Authentication:** API key + token header authentication (`x-rr-apikey` / `x-rr-apitoken`) supported as an alternative to bearer token authentication.
* **Endpoint:** `GET /labels/{id}` — now accepts comma-separated identifiers (label UUIDs or customer order numbers) for batch retrieval. Missing or failed labels are omitted from the response.
* **Response:** `GET /labels/{id}` response now includes `customerOrderNumber` field.

### Changed

* **Breaking:** `shipperAccountId` removed from the label creation request. The field is not required in the `service` object.
* **API spec:** Enriched with detailed descriptions, examples, and operation IDs across all endpoints.
* **Documentation:** Improved quickstart guide, request samples, and general fixes.

***

## v1.0.0

Initial public release of the Flex Forward API and developer documentation.

### Added

* **Endpoints:** `POST /labels` (create shipping label), `GET /labels/{id}` (retrieve label document URL), `GET /tracking/{id}` (retrieve shipment tracking)
* **Production courier:** YunExpress with global cross-border e-commerce shipping lanes
* **Idempotency:** Built-in duplicate prevention for label creation via `idempotencyKey`
* **Unified tracking:** Normalized status tags (`Pending`, `InfoReceived`, `InTransit`, `Delivered`, `Exception`, `Cancelled`, `Unknown`) and structured checkpoint format across all couriers
* **Authentication:** Bearer token authentication with separate tokens for production and development environments
* **Documentation:** Quickstart guide, authentication reference, error handling guide, idempotency and retry patterns, environment details, core concepts, versioning policy, and FAQ