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

# /2026-01/marketing-solutions/audience-segments/{audience-segment-id}/contact-list

> Delete all identifiers from a contact list audience-segment.



## OpenAPI

````yaml https://api.criteo.com/2026-01/marketingsolutions/open-api-specifications.json delete /2026-01/marketing-solutions/audience-segments/{audience-segment-id}/contact-list
openapi: 3.0.1
info:
  title: Criteo API
  description: Criteo API - MarketingSolutions
  version: 2026-01
servers:
  - url: https://api.criteo.com
security:
  - oauth: []
tags:
  - name: Advertiser
  - name: Analytics
  - name: Audience
  - name: Campaign
  - name: Creative
  - name: Gateway
  - name: Reco
paths:
  /2026-01/marketing-solutions/audience-segments/{audience-segment-id}/contact-list:
    parameters:
      - name: audience-segment-id
        in: path
        description: The id of the contact list audience-segment to amend
        required: true
        schema:
          type: string
          format: int32
    delete:
      tags:
        - Audience
      summary: >-
        /2026-01/marketing-solutions/audience-segments/{audience-segment-id}/contact-list
      description: Delete all identifiers from a contact list audience-segment.
      operationId: DeleteContactListByAudienceSegment
      responses:
        '200':
          description: The Contact List was emptied
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeleteAudienceContactListResponse'
              example:
                data:
                  id: '1'
                  type: AudienceContactlist
                errors: []
                warnings:
                  - traceId: 56ed4096-f96a-4944-8881-05468efe0ec9
                    type: deprecation
                    code: deprecated-field
                    instance: /audiences/314195
                    title: '''nbValidIds'' is deprecated'
                    detail: >-
                      The field 'nbValidIds' is deprecated please use
                      'nbValidIdentifiers
      security:
        - oauth:
            - MarketingSolutions_Audience_Manage
components:
  schemas:
    DeleteAudienceContactListResponse:
      required:
        - data
        - errors
        - warnings
      type: object
      properties:
        data:
          $ref: '#/components/schemas/BasicAudienceDefinition'
        errors:
          type: array
          items:
            $ref: '#/components/schemas/AudienceError'
        warnings:
          type: array
          items:
            $ref: '#/components/schemas/AudienceWarning'
      description: Response of a contactlist deletion
    BasicAudienceDefinition:
      required:
        - id
        - type
      type: object
      properties:
        attributes:
          $ref: '#/components/schemas/AudienceNameDescription'
        id:
          type: string
          description: the id of the entity type
        type:
          type: string
          description: the name of the entity type
      description: Common definition of an audience
    AudienceError:
      required:
        - code
        - instance
        - type
      type: object
      properties:
        code:
          type: string
          description: >-
            (REQUIRED) A machine-readable unique error code, expressed as a
            string value. The format used must be kebab-case.
        detail:
          type: string
          description: >-
            (RECOMMENDED) A human-readable explanation specific to this
            occurrence of the problem
          nullable: true
        instance:
          type: string
          description: >-
            (REQUIRED) A URI reference that identifies the specific occurrence
            of the problem
        source:
          type: object
          description: >-
            (OPTIONAL) A machine-readable structure to reference to the exact
            location(s) causing the error(s)
          nullable: true
        stackTrace:
          type: array
          items:
            type: string
          description: >-
            (NEVER IN PRODUCTION) A human-readable stacktrace produced by the
            implementation technology
          nullable: true
        title:
          type: string
          description: (RECOMMENDED) A short, human-readable summary of the problem type
          nullable: true
        traceId:
          type: string
          description: >-
            (REQUIRED) The Correlation ID provided by the Gateway. It is also a
            unique identifier for this particular occurrence of the problem.
          nullable: true
        type:
          enum:
            - access-control
            - authentication
            - authorization
            - availability
            - deprecation
            - quota
            - validation
          type: string
          description: (REQUIRED) The classification of the error
      description: Definition of an audience error
    AudienceWarning:
      required:
        - code
        - detail
        - instance
        - type
      type: object
      properties:
        code:
          type: string
          description: >-
            (REQUIRED) A machine-readable unique error code, expressed as a
            string value. The format used must be kebab-case.
        detail:
          type: string
          description: >-
            (REQUIRED) A human-readable explanation specific to this occurrence
            of the problem
        instance:
          type: string
          description: >-
            (REQUIRED) A URI reference that identifies the specific occurrence
            of the problem
        source:
          type: object
          description: >-
            (OPTIONAL) A machine-readable structure to reference to the exact
            location(s) causing the error(s)
          nullable: true
        stackTrace:
          type: array
          items:
            type: string
          description: >-
            (NEVER IN PRODUCTION) A human-readable stacktrace produced by the
            implementation technology
          nullable: true
        title:
          type: string
          description: (RECOMMENDED) A short, human-readable summary of the problem type
          nullable: true
        traceId:
          type: string
          description: >-
            (REQUIRED) The Correlation ID provided by the Gateway. It is also a
            unique identifier for this particular occurrence of the problem.
          nullable: true
        type:
          enum:
            - access-control
            - authentication
            - authorization
            - availability
            - deprecation
            - quota
            - validation
          type: string
          description: (REQUIRED) The classification of the error
      description: Definition of the warning
    AudienceNameDescription:
      type: object
      properties:
        description:
          type: string
          description: The description of the audience
          nullable: true
        name:
          type: string
          description: The name to designate the audience by
          nullable: true
      description: Description of an audience with name and detailed description
      nullable: true
  securitySchemes:
    oauth:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.criteo.com/oauth2/token
          scopes: {}
        authorizationCode:
          authorizationUrl: https://api.criteo.com/oauth2
          tokenUrl: https://api.criteo.com/oauth2/token
          scopes: {}

````