# Validate shipment (returns domain validation errors without mutating state)

Returns cancelled member manifests and per-manifest validation results (duplicated tracks, non-existing tracks, deactivated tracks) without modifying the shipment.

Endpoint: GET /integration/rest/api/v1/shipment/{shipmentExternalId}/validate
Version: v0
Security: X-AUTH-KEY

## Path parameters:

  - `shipmentExternalId` (string, required)
    Shipment external identifier or uuid.
    Example: "SHIP-2024-001"

## Response 200 fields (*/*):

  - `canceledManifests` (array)
    Manifests that are in CANCELLED status while still attached to the shipment.

  - `canceledManifests.uuid` (string)
    Internal manifest identifier (uuid).

  - `canceledManifests.externalIdentifier` (string)
    Caller-assigned manifest external identifier, if any.

  - `canceledManifests.manifestStatus` (string)
    Current manifest status.
    Enum: "PLANNED", "TO_DO", "IN_PROGRESS", "COMPLETED", "CANCELLED"

  - `manifestValidations` (array)
    Per-manifest validation results (duplicated tracks, non-existing tracks, deactivated tracks) for each non-cancelled attached manifest.

  - `manifestValidations.duplicatedTracks` (array)
    List of duplicated track issues (same asset added multiple times to the manifest).

  - `manifestValidations.duplicatedTracks.trackIdentifier` (string)
    Business identifier of the duplicated track.

  - `manifestValidations.duplicatedTracks.addedToManifests` (array)
    List of manifest identifiers where this track is already present.

  - `manifestValidations.nonExistingTracks` (array)
    Asset identifiers that could not be found.

  - `manifestValidations.deactivatedTracks` (array)
    Asset identifiers that are deactivated and cannot be added.

## Response 403 fields (*/*):

  - `code` (string)
    Error code

  - `message` (string)
    Error message

  - `timeStamp` (integer)
    Timestamp

  - `correlationId` (string)
    Correlation id

## Response 404 fields (*/*):

  - `code` (string)
    Error code

  - `message` (string)
    Error message

  - `timeStamp` (integer)
    Timestamp

  - `correlationId` (string)
    Correlation id

## Response 500 fields (*/*):

  - `code` (string)
    Error code

  - `message` (string)
    Error message

  - `timeStamp` (integer)
    Timestamp

  - `correlationId` (string)
    Correlation id