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

# 割り当て 新しいFNSKU To Fba 補充指示

<Warning>
  このページはAIによって自動翻訳されています。API技術仕様は英語が正式です。不明点がある場合は[英語版](/api-reference/fbainstructionreplenish/assign-new-fnsku-to-fba-replenishment-instruction)を参照してください。
</Warning>

replenish 種別の指示アイテムに新しい FNSKU を割り当てます——元の FNSKU が無効になった場合（例：Amazon に再ラベル付けされた場合）に使用します。FNSKU のマッピングのみが変わり、元の指示とシップメントは変更されません。


## OpenAPI

````yaml post /api/Fba/FbaInstructionReplenish/assignNewFnsku
openapi: 3.1.0
info:
  title: Return Helper API
  description: API documentation for Return Helper — covering User and Public endpoints.
  version: 1.0.0
servers:
  - url: https://api.returnshelper.com/uat/user
    description: Sandbox — User API
  - url: https://api.returnshelper.com/uat/public
    description: Sandbox — Public API
  - url: https://api.returnhelpercentre.com/v1/user
    description: Production — User API
  - url: https://api.returnhelpercentre.com/v1/public
    description: Production — Public API
  - url: https://api.returnhelperchina.com/user
    description: Production — User API (China)
security:
  - ApiKey: []
    ApiToken: []
paths:
  /api/Fba/FbaInstructionReplenish/assignNewFnsku:
    post:
      tags:
        - FbaInstructionReplenish
      summary: Assign new FNSKU to FBA replenishment instruction
      operationId: ReturnUserApi_AssignNewFnsku
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UserAssignNewFnskuRequest'
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GeneralList_UserAssignNewFnskuReply'
        '401':
          description: >-
            Authentication failed. Returned when the `x-rr-apikey` or
            `x-rr-apitoken` header is missing or invalid. The body uses the
            standard `ApiResponse` envelope with `meta.error.message` describing
            the auth failure.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
      security:
        - ApiKey: []
          ApiToken: []
      servers:
        - url: https://api.returnshelper.com/uat/user
          description: Sandbox — User API
components:
  schemas:
    UserAssignNewFnskuRequest:
      type: object
      properties:
        fbaInstructionId:
          type: string
          format: uuid
          description: FBA instruction identifier
        assignNewFnskuPayloadList:
          type: array
          items:
            $ref: '#/components/schemas/UserAssignNewFnskuPayload'
          description: List of FNSKU reassignment pairs
      required:
        - fbaInstructionId
        - assignNewFnskuPayloadList
    GeneralList_UserAssignNewFnskuReply:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/UserAssignNewFnskuReply'
          description: Results of FNSKU assignments
    ApiResponse:
      type: object
      description: >-
        Universal response envelope. Successful responses include the business
        payload as additional top-level fields alongside `correlationId` and
        `meta`. Failed responses (auth errors, validation errors) only populate
        `correlationId` and `meta`, with `meta.errorCode` and `meta.error`
        describing the failure.
      properties:
        correlationId:
          type:
            - string
            - 'null'
          description: >-
            Unique correlation ID for tracing the request through Return Helper
            systems.
        meta:
          $ref: '#/components/schemas/ApiResponseMeta'
    UserAssignNewFnskuPayload:
      type: object
      properties:
        oldFnsku:
          type: string
          description: Current FNSKU to be replaced (converted to uppercase)
        newFnsku:
          type: string
          description: New FNSKU to assign (converted to uppercase)
      required:
        - oldFnsku
        - newFnsku
    UserAssignNewFnskuReply:
      type: object
      properties:
        fbaInstructionItemId:
          type: string
          format: uuid
        apiId:
          type: integer
          format: int32
        fbaInstructionId:
          type: string
          format: uuid
        fbaShipmentItemId:
          type: string
          format: uuid
        instructionItemQuantity:
          type: integer
          format: int32
        fnsku:
          type:
            - string
            - 'null'
        trackingNumber:
          type:
            - string
            - 'null'
        receivedNumber:
          type:
            - string
            - 'null'
        newFnsku:
          type:
            - string
            - 'null'
    ApiResponseMeta:
      type: object
      description: >-
        Application-level metadata for every API response. Inspect `status` and
        `errorCode` to detect soft-error responses (validation failures arrive
        as HTTP 200 with `meta.status: 400`).
      properties:
        status:
          type: integer
          description: >-
            Application-level status code. For successful operations this
            mirrors the HTTP status (e.g. 200). For validation failures it
            reports the logical status (e.g. 400) even though the wire HTTP
            status is 200.
        data:
          type: object
          additionalProperties:
            type: string
          description: Reserved free-form metadata key/value pairs. Usually empty.
        errorCode:
          type:
            - string
            - 'null'
          description: >-
            Machine-readable error code (e.g. `VALIDATION_FAILED`). Non-null
            only when the operation failed.
        error:
          type: object
          additionalProperties: true
          description: >-
            Field-level or message-level error detail keyed by request property
            name. Empty object on success.
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: x-rr-apikey
      description: Your API key
    ApiToken:
      type: apiKey
      in: header
      name: x-rr-apitoken
      description: Your API token — keep this private

````