> ## 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.

# /2025-01/retail-media/line-items/{line-item-id}/bid-multipliers

> Updates the bid multipliers for a given line item



## OpenAPI

````yaml https://api.criteo.com/2025-01/retailmedia/open-api-specifications.json put /2025-01/retail-media/line-items/{line-item-id}/bid-multipliers
openapi: 3.0.1
info:
  title: Criteo API
  description: Criteo API - RetailMedia
  version: 2025-01
servers:
  - url: https://api.criteo.com
security:
  - oauth: []
tags:
  - name: Accounts
  - name: Analytics
  - name: Audience
  - name: Balance
  - name: Campaign
  - name: Gateway
paths:
  /2025-01/retail-media/line-items/{line-item-id}/bid-multipliers:
    put:
      tags:
        - Campaign
      summary: /2025-01/retail-media/line-items/{line-item-id}/bid-multipliers
      description: Updates the bid multipliers for a given line item
      operationId: UpdateBidMultipliersByLineItemId
      parameters:
        - name: line-item-id
          in: path
          description: LineItemId for bid multiplier retrieval
          required: true
          schema:
            type: string
      requestBody:
        description: New Bid Multipliers to be set
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LineItemBidMultipliersV2Request'
        required: true
        x-bodyName: request
      responses:
        '200':
          description: BidMultipliers Updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LineItemBidMultipliersV2Response'
      security:
        - oauth:
            - RetailMedia_Campaign_Manage
components:
  schemas:
    LineItemBidMultipliersV2Request:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/ResourceOfLineItemBidMultipliersV2'
      description: >-
        A top-level object that encapsulates a Criteo API request for a single
        entity
      nullable: true
    LineItemBidMultipliersV2Response:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/ResourceOfLineItemBidMultipliersV2'
        errors:
          type: array
          items:
            $ref: '#/components/schemas/CommonProblem'
          nullable: true
          readOnly: true
        warnings:
          type: array
          items:
            $ref: '#/components/schemas/CommonProblem'
          nullable: true
          readOnly: true
      description: >-
        A top-level object that encapsulates a Criteo API response for a single
        entity
      nullable: true
    ResourceOfLineItemBidMultipliersV2:
      type: object
      properties:
        attributes:
          $ref: '#/components/schemas/LineItemBidMultipliersV2'
        id:
          type: string
          description: Id of the entity
          nullable: true
        type:
          type: string
          description: Canonical type name of the entity
          nullable: true
      description: A class that represents a domain entity exposed by an API
      nullable: true
    CommonProblem:
      type: object
      properties:
        code:
          type: string
          description: A machine-readable error code, expressed as a string value.
          nullable: true
        detail:
          type: string
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem
          nullable: true
        instance:
          type: string
          description: A URI that identifies the specific occurrence of the problem.
          nullable: true
        source:
          type: object
          additionalProperties:
            type: string
          description: >-
            A machine-readable structure to reference to the exact location(s)
            causing the error(s)
          nullable: true
        stackTrace:
          type: string
          nullable: true
        title:
          type: string
          description: A short human-readable description of the problem type
          nullable: true
        traceId:
          type: string
          description: The request correlation ID this problem comes from.
          nullable: true
        traceIdentifier:
          type: string
          description: >-
            The request correlation ID this problem comes from. (deprecated, use
            traceId instead)
          nullable: true
        type:
          enum:
            - unknown
            - access-control
            - authentication
            - authorization
            - availability
            - deprecation
            - quota
            - validation
          type: string
          description: The problem's category.
          nullable: true
      description: Common problem object.
    LineItemBidMultipliersV2:
      type: object
      properties:
        category:
          type: number
          description: Categories Page Type Bid Multiplier
          format: double
          nullable: true
        categoryMenu:
          type: number
          description: CategoryMenu Page Type Bid Multiplier
          format: double
          nullable: true
        checkout:
          type: number
          description: Checkout Page Type Bid Multiplier
          format: double
          nullable: true
        confirmation:
          type: number
          description: Confirmation Page Type Bid Multiplier
          format: double
          nullable: true
        deals:
          type: number
          description: Deals Page Type Bid Multiplier
          format: double
          nullable: true
        favorites:
          type: number
          description: Favorites Page Type Bid Multiplier
          format: double
          nullable: true
        home:
          type: number
          description: Home Page Type Bid Multiplier
          format: double
          nullable: true
        id:
          type: string
          nullable: true
        merchandising:
          type: number
          description: Merchandising Page Type Bid Multiplier
          format: double
          nullable: true
        productDetail:
          type: number
          description: ProductDetail Page Type Bid Multiplier
          format: double
          nullable: true
        search:
          type: number
          description: Search Page Type Bid Multiplier
          format: double
          nullable: true
        searchBar:
          type: number
          description: SearchBar Page Type Bid Multiplier
          format: double
          nullable: true
      description: The Bid Multiplier Entity of a LineItem
      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: {}

````