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

# Add variant serials

> Appends newline-separated serials to a variant. Set `remove_duplicates` to skip serials that are already in stock. Send an `Idempotency-Key` header to make a retry safe.



## OpenAPI

````yaml /openapi.json post /dev/v1/products/{id}/variants/{variantId}/serials
openapi: 3.0.3
info:
  title: Shoppex Developer API
  description: Mintlify-compatible Developer API reference for Shoppex.
  version: 1.0.0
  contact:
    name: Shoppex Support
    email: support@shoppex.io
    url: https://shoppex.io
servers:
  - url: https://api.shoppex.io
security:
  - bearerAuth: []
paths:
  /dev/v1/products/{id}/variants/{variantId}/serials:
    post:
      tags:
        - Products
      summary: Add variant serials
      description: >-
        Appends newline-separated serials to a variant. Set `remove_duplicates`
        to skip serials that are already in stock. Send an `Idempotency-Key`
        header to make a retry safe.
      operationId: postDevV1ProductsByIdVariantsByVariantIdSerials
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
        - name: variantId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
              example:
                serials: |-
                  ABC-123
                  XYZ-789
                remove_duplicates: true
      responses:
        '200':
          description: Response for status 200
          content:
            application/json:
              schema:
                type: object
                required:
                  - data
                properties:
                  data:
                    type: object
                    required:
                      - added_count
                    properties:
                      added_count:
                        type: number
                      duplicate_in_stock_count:
                        type: number
                      duplicate_used_count:
                        type: number
                    additionalProperties: true
                additionalProperties: true
                example:
                  data:
                    added_count: 2
        '401':
          description: Response for status 401
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
        '403':
          description: Response for status 403
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
        '404':
          description: Response for status 404
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
        '422':
          description: Response for status 422
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
        '429':
          description: Response for status 429
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
        '500':
          description: Response for status 500
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: object
                    required:
                      - code
                      - message
                      - doc_url
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      doc_url:
                        type: string
                      details:
                        type: array
                        items:
                          type: object
                          required:
                            - field
                            - message
                          properties:
                            field:
                              type: string
                            message:
                              type: string
                          additionalProperties: true
                      subcode:
                        type: string
                    additionalProperties: true
                additionalProperties: true
      deprecated: false
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: Use your Shoppex API key in the Authorization header.

````