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

---
id: 22d186a3-83cf-4610-a2c8-135986242e33
---

# Associate records (default)

> Create the default (most generic) association type between two object types

export const ScopesList = ({scopes = [], description = "This API requires one of the following scopes:"}) => {
  if (!scopes || scopes.length === 0) {
    return null;
  }
  const sortedScopes = scopes.sort((a, b) => a.localeCompare(b));
  return <div>
      <div className="text-sm mb-2">{description}</div>
      <div>
        {sortedScopes.map((scope, index) => <div key={index}>
            <code>
              <span className="text-xs">{scope}</span>
            </code>
          </div>)}
      </div>
    </div>;
};

export const SupportedProducts = ({marketing, sales, service, cms, data, commerce, crm, marketingLevel, salesLevel, serviceLevel, cmsLevel, dataLevel, commerceLevel, crmLevel}) => {
  const translations = {
    description: "Requires one of the following products or higher.",
    productNames: {
      marketing: "Marketing Hub",
      sales: "Sales Hub",
      service: "Service Hub",
      cms: "Content Hub",
      data: "Data Hub",
      commerce: "Revenue Hub",
      crm: "Smart CRM"
    },
    tiers: {
      free: "Free",
      starter: "Starter",
      professional: "Professional",
      enterprise: "Enterprise"
    }
  };
  const translateTier = tier => {
    if (!tier) return '';
    const lowerTier = tier.toLowerCase();
    return translations.tiers[lowerTier] || tier;
  };
  const products = [{
    name: marketing ? translations.productNames.marketing : '',
    level: translateTier(marketingLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/MarketingHub.svg",
    alt: "Marketing Hub"
  }, {
    name: sales ? translations.productNames.sales : '',
    level: translateTier(salesLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/SalesHub.svg",
    alt: "Sales Hub"
  }, {
    name: service ? translations.productNames.service : '',
    level: translateTier(serviceLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/ServiceHub.svg",
    alt: "Service Hub"
  }, {
    name: cms ? translations.productNames.cms : '',
    level: translateTier(cmsLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/ContentHub.svg",
    alt: "Content Hub"
  }, {
    name: data ? translations.productNames.data : '',
    level: translateTier(dataLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/DataHub.svg",
    alt: "Data Hub"
  }, {
    name: commerce ? translations.productNames.commerce : '',
    level: translateTier(commerceLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base/subscription_key_icons/commerce_icon.svg",
    alt: "Revenue Hub"
  }, {
    name: crm ? translations.productNames.crm : '',
    level: translateTier(crmLevel),
    icon: "https://www.hubspot.com/hubfs/Knowledge_Base_2023-24-25/developer/icons/SmartCRM.svg",
    alt: "Smart CRM"
  }].filter(product => product.name && product.level);
  if (products.length === 0) return null;
  return <div>
      <div className="text-sm mb-2">{translations.description}</div>
      <div className={`grid ${products.length === 1 ? 'grid-cols-1' : 'grid-cols-2'} gap-1.5`}>
        {products.map((product, index) => <div key={index} style={{
    display: 'flex',
    alignItems: 'center'
  }}>
            <img src={product.icon} alt={product.alt} className="w-3.5 h-3.5 mr-1.5 mt-2.5 mb-2.5 flex-shrink-0 align-middle" />
            <span className="font-medium mr-1 text-sm">{product.name} -</span>
            <span className="text-sm">{product.level}</span>
          </div>)}
      </div>
    </div>;
};

<AccordionGroup>
  <Accordion title="Supported products" defaultOpen="true" icon="cubes">
    <SupportedProducts marketing={true} sales={true} service={true} cms={true} marketingLevel="FREE" salesLevel="FREE" serviceLevel="FREE" cmsLevel="FREE" />
  </Accordion>

  <Accordion title="Required Scopes" icon="key">
    <ScopesList
      scopes={[
  'crm.objects.orders.read',
  'crm.objects.appointments.sensitive.read.v2',
  'crm.objects.contacts.highly_sensitive.read.v2',
  'crm.objects.companies.write',
  'crm.objects.custom.sensitive.read.v2',
  'crm.objects.users.read',
  'crm.objects.users.write',
  'crm.objects.commercepayments.write',
  'crm.objects.invoices.write',
  'crm.objects.contacts.highly_sensitive.write.v2',
  'crm.objects.carts.write',
  'crm.objects.appointments.write',
  'crm.objects.partner-services.read',
  'crm.objects.custom.write',
  'tickets',
  'crm.objects.deals.sensitive.write.v2',
  'crm.objects.deals.highly_sensitive.write.v2',
  'crm.objects.companies.highly_sensitive.write.v2',
  'tickets.sensitive.v2',
  'crm.objects.projects.highly_sensitive.read',
  'crm.objects.appointments.read',
  'crm.objects.appointments.sensitive.write.v2',
  'crm.objects.projects.sensitive.read',
  'crm.objects.projects.write',
  'media_bridge.read',
  'crm.objects.listings.read',
  'crm.objects.courses.write',
  'crm.objects.carts.read',
  'crm.objects.listings.write',
  'crm.objects.custom.read',
  'crm.objects.deals.read',
  'crm.objects.subscriptions.read',
  'crm.objects.companies.sensitive.read.v2',
  'crm.objects.companies.read',
  'crm.objects.custom.sensitive.write.v2',
  'crm.objects.deals.highly_sensitive.read.v2',
  'crm.objects.contacts.sensitive.write.v2',
  'crm.objects.companies.highly_sensitive.read.v2',
  'crm.objects.projects.highly_sensitive.write',
  'crm.objects.partner-services.write',
  'crm.objects.contacts.read',
  'crm.objects.services.write',
  'crm.objects.orders.write',
  'crm.objects.subscriptions.write',
  'crm.objects.commercepayments.read',
  'crm.objects.products.write',
  'crm.objects.custom.highly_sensitive.read.v2',
  'crm.objects.deals.write',
  'crm.objects.invoices.read',
  'e-commerce',
  'tickets.highly_sensitive.v2',
  'crm.objects.quotes.write',
  'crm.objects.leads.read',
  'crm.objects.leads.write',
  'crm.objects.custom.highly_sensitive.write.v2',
  'crm.objects.projects.sensitive.write',
  'crm.objects.deals.sensitive.read.v2',
  'crm.objects.goals.write',
  'crm.objects.companies.sensitive.write.v2',
  'crm.objects.projects.read',
  'crm.objects.contacts.write',
  'crm.objects.goals.read',
  'crm.objects.partner-clients.write',
  'crm.objects.line_items.read',
  'crm.objects.contacts.sensitive.read.v2',
  'crm.objects.line_items.write',
  'crm.objects.products.read',
  'crm.objects.courses.read',
  'crm.objects.quotes.read',
  'crm.objects.partner-clients.read',
  'crm.objects.services.read'
]}
    />
  </Accordion>
</AccordionGroup>


## OpenAPI

````yaml specs/2026-03/crm-associations-v2026-03.json POST /crm/associations/2026-03/{fromObjectType}/{toObjectType}/batch/associate/default
openapi: 3.0.1
info:
  title: Associations
  description: Basepom for all HubSpot Projects
  version: 2026-03
  x-hubspot-product-tier-requirements:
    marketing: FREE
    sales: FREE
    service: FREE
    cms: FREE
    commerce: FREE
    crmHub: FREE
    dataHub: FREE
  x-hubspot-api-use-case: >-
    When an existing contact has moved to a new company, update their associated
    company to keep your CRM up to date.
  x-hubspot-introduction: >-
    Use the associations API to create, retrieve, update, or delete associations
    between records, or between records and activities. 
servers:
  - url: https://api.hubapi.com
security: []
tags:
  - name: Basic
  - name: Batch
  - name: Search
paths:
  /crm/associations/2026-03/{fromObjectType}/{toObjectType}/batch/associate/default:
    post:
      tags:
        - Batch
      summary: ' Create Default Associations'
      description: >-
        Create the default (most generic) association type between two object
        types
      operationId: >-
        post-/crm/associations/2026-03/{fromObjectType}/{toObjectType}/batch/associate/default_/crm/associations/2025-09/{fromObjectType}/{toObjectType}/batch/associate/default
      parameters:
        - name: fromObjectType
          in: path
          required: true
          style: simple
          explode: false
          schema:
            type: string
        - name: toObjectType
          in: path
          required: true
          style: simple
          explode: false
          schema:
            type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/BatchInputPublicDefaultAssociationMultiPost'
        required: true
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BatchResponsePublicDefaultAssociation'
        default:
          $ref: '#/components/responses/Error'
          description: ''
      security:
        - oauth2:
            - crm.objects.deals.read
        - oauth2:
            - crm.objects.subscriptions.read
        - oauth2:
            - crm.objects.services.read
        - oauth2:
            - crm.objects.tickets.sensitive.read
        - oauth2:
            - crm.objects.orders.read
        - oauth2:
            - crm.objects.listings.write
        - oauth2:
            - crm.objects.custom.read
        - oauth2:
            - crm.objects.companies.write
        - oauth2:
            - crm.objects.tasks.read
        - oauth2:
            - crm.objects.custom.sensitive.write.v2
        - oauth2:
            - crm.objects.custom.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.companies.read
        - oauth2:
            - crm.objects.contacts.highly_sensitive.read.v2
        - oauth2:
            - crm.objects.appointments.sensitive.read.v2
        - oauth2:
            - crm.objects.tickets.highly_sensitive.read
        - oauth2:
            - crm.objects.companies.sensitive.read.v2
        - oauth2:
            - crm.objects.tickets.sensitive.write
        - oauth2:
            - media_bridge.read
        - oauth2:
            - crm.objects.deals.highly_sensitive.read.v2
        - oauth2:
            - crm.objects.contacts.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.companies.highly_sensitive.read.v2
        - oauth2:
            - crm.objects.commercepayments.write
        - oauth2:
            - crm.objects.invoices.write
        - oauth2:
            - crm.objects.contacts.sensitive.write.v2
        - oauth2:
            - crm.objects.users.write
        - oauth2:
            - crm.objects.calls.read
        - oauth2:
            - crm.objects.meetings.read
        - oauth2:
            - crm.objects.custom.sensitive.read.v2
        - oauth2:
            - crm.objects.users.read
        - oauth2:
            - crm.objects.partner-services.read
        - oauth2:
            - crm.objects.orders.write
        - oauth2:
            - crm.objects.partner-services.write
        - oauth2:
            - crm.objects.appointments.write
        - oauth2:
            - crm.objects.projects.highly_sensitive.write
        - oauth2:
            - crm.objects.carts.write
        - oauth2:
            - crm.objects.tickets.highly_sensitive.write
        - oauth2:
            - tickets
        - oauth2:
            - crm.objects.commercepayments.read
        - oauth2:
            - crm.objects.products.write
        - oauth2:
            - crm.objects.services.write
        - oauth2:
            - crm.objects.subscriptions.write
        - oauth2:
            - crm.objects.deals.sensitive.write.v2
        - oauth2:
            - crm.objects.contacts.read
        - oauth2:
            - crm.objects.appointments.sensitive.write.v2
        - oauth2:
            - crm.objects.invoices.read
        - oauth2:
            - crm.objects.projects.highly_sensitive.read
        - oauth2:
            - tickets.sensitive.v2
        - oauth2:
            - crm.objects.custom.write
        - oauth2:
            - crm.objects.deals.write
        - oauth2:
            - e-commerce
        - oauth2:
            - crm.objects.appointments.read
        - oauth2:
            - crm.objects.companies.sensitive.write.v2
        - oauth2:
            - crm.objects.projects.read
        - oauth2:
            - crm.objects.deals.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.custom.highly_sensitive.read.v2
        - oauth2:
            - crm.objects.companies.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.goals.write
        - oauth2:
            - crm.objects.line_items.write
        - oauth2:
            - crm.objects.projects.sensitive.read
        - oauth2:
            - crm.objects.contacts.write
        - oauth2:
            - crm.objects.goals.read
        - oauth2:
            - crm.objects.line_items.read
        - oauth2:
            - crm.objects.partner-clients.write
        - oauth2:
            - crm.objects.projects.write
        - oauth2:
            - crm.objects.deals.sensitive.read.v2
        - oauth2:
            - crm.objects.projects.sensitive.write
        - oauth2:
            - crm.objects.quotes.write
        - oauth2:
            - tickets.highly_sensitive.v2
        - oauth2:
            - crm.objects.leads.read
        - oauth2:
            - crm.objects.leads.write
        - oauth2:
            - crm.objects.carts.read
        - oauth2:
            - crm.objects.emails.read
        - oauth2:
            - crm.objects.quotes.read
        - oauth2:
            - crm.objects.courses.write
        - oauth2:
            - crm.objects.partner-clients.read
        - oauth2:
            - crm.objects.notes.read
        - oauth2:
            - crm.objects.courses.read
        - oauth2:
            - crm.objects.listings.read
        - oauth2:
            - crm.objects.contacts.sensitive.read.v2
        - oauth2:
            - crm.objects.products.read
components:
  schemas:
    BatchInputPublicDefaultAssociationMultiPost:
      required:
        - inputs
      type: object
      properties:
        inputs:
          type: array
          items:
            $ref: '#/components/schemas/PublicDefaultAssociationMultiPost'
    BatchResponsePublicDefaultAssociation:
      required:
        - completedAt
        - results
        - startedAt
        - status
      type: object
      properties:
        completedAt:
          type: string
          description: >-
            The timestamp when the batch process was completed, in ISO 8601
            format.
          format: date-time
        errors:
          type: array
          items:
            $ref: '#/components/schemas/StandardError'
        links:
          type: object
          additionalProperties:
            type: string
          description: An object containing relevant links related to the batch request.
        numErrors:
          type: integer
          description: The number of errors encountered during the batch processing.
          format: int32
        requestedAt:
          type: string
          description: >-
            The timestamp when the batch process was initiated, in ISO 8601
            format.
          format: date-time
        results:
          type: array
          items:
            $ref: '#/components/schemas/PublicDefaultAssociation'
        startedAt:
          type: string
          description: >-
            The timestamp when the batch process began execution, in ISO 8601
            format.
          format: date-time
        status:
          type: string
          description: >-
            The status of the batch processing request: "PENDING", "PROCESSING",
            "CANCELLED", or "COMPLETE".
          enum:
            - CANCELED
            - COMPLETE
            - PENDING
            - PROCESSING
      description: >-
        The response returned after performing a batch operation on
        associations.
    PublicDefaultAssociationMultiPost:
      required:
        - from
        - to
      type: object
      properties:
        from:
          $ref: '#/components/schemas/PublicObjectId'
        to:
          $ref: '#/components/schemas/PublicObjectId'
    StandardError:
      required:
        - category
        - context
        - errors
        - links
        - message
        - status
      type: object
      properties:
        category:
          type: string
          description: The main category of the error.
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Additional context-specific information related to the error.
        errors:
          type: array
          description: The detailed error objects.
          items:
            $ref: '#/components/schemas/ErrorDetail'
        id:
          type: string
          description: A unique ID for the error instance.
        links:
          type: object
          additionalProperties:
            type: string
          description: >-
            URLs linking to documentation or resources associated with the
            error.
        message:
          type: string
          description: >-
            A human-readable string describing the error and possible
            remediation steps.
        status:
          type: string
          description: The HTTP status code associated with the error.
        subCategory:
          type: object
          properties: {}
          description: A more specific error category within each main category.
      description: >-
        Represents a standard error response in the HubSpot API, providing
        detailed information about an error that occurred during an API request.
    PublicDefaultAssociation:
      required:
        - associationSpec
        - from
        - to
      type: object
      properties:
        associationSpec:
          $ref: '#/components/schemas/AssociationSpec'
        from:
          $ref: '#/components/schemas/PublicObjectId'
        to:
          $ref: '#/components/schemas/PublicObjectId'
    Error:
      required:
        - category
        - correlationId
        - message
      type: object
      properties:
        category:
          type: string
          description: The error category
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Context about the error condition
          example: >-
            {invalidPropertyName=[propertyValue], missingScopes=[scope1,
            scope2]}
        correlationId:
          type: string
          description: >-
            A unique identifier for the request. Include this value with any
            error reports or support tickets
          format: uuid
          example: aeb5f871-7f07-4993-9211-075dc63e7cbf
        errors:
          type: array
          description: further information about the error
          items:
            $ref: '#/components/schemas/ErrorDetail'
        links:
          type: object
          additionalProperties:
            type: string
          description: >-
            A map of link names to associated URIs containing documentation
            about the error or recommended remediation steps
        message:
          type: string
          description: >-
            A human readable message describing the error along with remediation
            steps where appropriate
          example: An error occurred
        subCategory:
          type: string
          description: >-
            A specific category that contains more specific detail about the
            error
      description: >-
        Represents an error response returned by the API when an operation
        fails. This component is used in various endpoints to provide detailed
        information about the error encountered.
      example:
        message: Invalid input (details will vary based on the error)
        correlationId: aeb5f871-7f07-4993-9211-075dc63e7cbf
        category: VALIDATION_ERROR
        links:
          knowledge-base: https://www.hubspot.com/products/service/knowledge-base
    PublicObjectId:
      required:
        - id
      type: object
      properties:
        id:
          type: string
          description: ID of the object
      description: Contains the Id of a Public Object
    ErrorDetail:
      required:
        - message
      type: object
      properties:
        code:
          type: string
          description: The status code associated with the error detail
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: Context about the error condition
          example: '{missingScopes=[scope1, scope2]}'
        in:
          type: string
          description: The name of the field or parameter in which the error was found.
        message:
          type: string
          description: >-
            A human readable message describing the error along with remediation
            steps where appropriate
        subCategory:
          type: string
          description: >-
            A specific category that contains more specific detail about the
            error
      description: >-
        Represents detailed information about an error that occurred in the API.
        This component is used to provide additional context and specifics about
        errors, typically as part of an error response.
    AssociationSpec:
      required:
        - associationCategory
        - associationTypeId
      type: object
      properties:
        associationCategory:
          type: string
          description: The category of the association, such as "HUBSPOT_DEFINED".
          enum:
            - HUBSPOT_DEFINED
            - INTEGRATOR_DEFINED
            - USER_DEFINED
            - WORK
        associationTypeId:
          type: integer
          description: The ID representing the specific type of association.
          format: int32
      description: >-
        Defines the type, direction, and details of the relationship between two
        CRM objects.
  responses:
    Error:
      description: An error occurred.
      content:
        '*/*':
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://app.hubspot.com/oauth/authorize
          tokenUrl: https://api.hubapi.com/oauth/v1/token
          scopes:
            crm.objects.appointments.read: ''
            crm.objects.appointments.sensitive.read.v2: ''
            crm.objects.appointments.sensitive.write.v2: ''
            crm.objects.appointments.write: ''
            crm.objects.calls.read: ''
            crm.objects.carts.read: ''
            crm.objects.carts.write: ''
            crm.objects.commercepayments.read: ''
            crm.objects.commercepayments.write: ''
            crm.objects.companies.highly_sensitive.read.v2: ''
            crm.objects.companies.highly_sensitive.write.v2: ''
            crm.objects.companies.read: ''
            crm.objects.companies.sensitive.read.v2: ''
            crm.objects.companies.sensitive.write.v2: ''
            crm.objects.companies.write: ''
            crm.objects.contacts.highly_sensitive.read.v2: ''
            crm.objects.contacts.highly_sensitive.write.v2: ''
            crm.objects.contacts.read: ''
            crm.objects.contacts.sensitive.read.v2: ''
            crm.objects.contacts.sensitive.write.v2: ''
            crm.objects.contacts.write: ''
            crm.objects.courses.read: ''
            crm.objects.courses.write: ''
            crm.objects.custom.highly_sensitive.read.v2: ''
            crm.objects.custom.highly_sensitive.write.v2: ''
            crm.objects.custom.read: ''
            crm.objects.custom.sensitive.read.v2: ''
            crm.objects.custom.sensitive.write.v2: ''
            crm.objects.custom.write: ''
            crm.objects.deals.highly_sensitive.read.v2: ''
            crm.objects.deals.highly_sensitive.write.v2: ''
            crm.objects.deals.read: ''
            crm.objects.deals.sensitive.read.v2: ''
            crm.objects.deals.sensitive.write.v2: ''
            crm.objects.deals.write: ''
            crm.objects.emails.read: ''
            crm.objects.goals.read: ''
            crm.objects.goals.write: ''
            crm.objects.invoices.read: ''
            crm.objects.invoices.write: ''
            crm.objects.leads.read: ''
            crm.objects.leads.write: ''
            crm.objects.line_items.read: ''
            crm.objects.line_items.write: ''
            crm.objects.listings.read: ''
            crm.objects.listings.write: ''
            crm.objects.meetings.read: ''
            crm.objects.notes.read: ''
            crm.objects.orders.read: ''
            crm.objects.orders.write: ''
            crm.objects.partner-clients.read: ''
            crm.objects.partner-clients.write: ''
            crm.objects.partner-services.read: ''
            crm.objects.partner-services.write: ''
            crm.objects.products.read: ''
            crm.objects.products.write: ''
            crm.objects.projects.highly_sensitive.read: ''
            crm.objects.projects.highly_sensitive.write: ''
            crm.objects.projects.read: ''
            crm.objects.projects.sensitive.read: ''
            crm.objects.projects.sensitive.write: ''
            crm.objects.projects.write: ''
            crm.objects.quotes.read: ''
            crm.objects.quotes.write: ''
            crm.objects.services.read: ''
            crm.objects.services.write: ''
            crm.objects.subscriptions.read: ''
            crm.objects.subscriptions.write: ''
            crm.objects.tasks.read: ''
            crm.objects.tickets.highly_sensitive.read: ''
            crm.objects.tickets.highly_sensitive.write: ''
            crm.objects.tickets.sensitive.read: ''
            crm.objects.tickets.sensitive.write: ''
            crm.objects.users.read: ''
            crm.objects.users.write: ''
            e-commerce: ''
            media_bridge.read: ''
            oauth: ''
            tickets: ''
            tickets.highly_sensitive.v2: ''
            tickets.sensitive.v2: ''

````