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

# Cancel Loyalty Program Voucher

> ### Cancel Voucher

Cancels an voucher within a loyalty program. Only vouchers in 'DRAFT' or 'LIVE' status can be canceled.

- **Path Parameters**:
    - `programId`: UUID of the loyalty program
    - `voucherId`: UUID of the voucher

- **Returns**:
    - Voucher details as a JSON object after status update.



## OpenAPI

````yaml https://api.loyalty.dog/openapi.json post /v2/loyalty/programs/{programId}/vouchers/{voucherId}/cancel
openapi: 3.1.0
info:
  title: LoyaltyDog
  description: >-

    Welcome to the LoyaltyDog API! This API provides access to our loyalty
    program features, allowing you to integrate with various platforms and
    manage your loyalty data.


    Want to query LoyaltyDog via an AI assistant (Claude, Cursor, Windsurf)? See
    the [MCP Integration guide](https://loyaltydog.ai/playground#mcp).
        
  termsOfService: https://loyalty.dog/loyalty-program-terms-service
  contact:
    name: LoyaltyDog Support
    url: https://loyalty.dog/contact-us
    email: support@loyalty.dog
  version: 1.0.1
servers:
  - url: https://api.loyalty.dog
    description: Production
security:
  - bearerAuth: []
paths:
  /v2/loyalty/programs/{programId}/vouchers/{voucherId}/cancel:
    post:
      tags:
        - Loyalty
      summary: Cancel Loyalty Program Voucher
      description: >-
        ### Cancel Voucher


        Cancels an voucher within a loyalty program. Only vouchers in 'DRAFT' or
        'LIVE' status can be canceled.


        - **Path Parameters**:
            - `programId`: UUID of the loyalty program
            - `voucherId`: UUID of the voucher

        - **Returns**:
            - Voucher details as a JSON object after status update.
      operationId: >-
        cancel_loyalty_program_voucher_v2_loyalty_programs__programId__vouchers__voucherId__cancel_post
      parameters:
        - name: programId
          in: path
          required: true
          schema:
            anyOf:
              - $ref: '#/components/schemas/PydanticObjectId'
              - type: string
            title: Programid
        - name: voucherId
          in: path
          required: true
          schema:
            anyOf:
              - $ref: '#/components/schemas/PydanticObjectId'
              - type: string
            title: Voucherid
        - name: authorization
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: Authorization
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    PydanticObjectId:
      type: string
      maxLength: 24
      minLength: 24
      pattern: ^[0-9a-f]{24}$
      example: 5eb7cf5a86d9755df3a6c593
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: JWT access token obtained from POST /v2/token.

````