> ## 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.

# Merge two objects with same type

> Merge two CRM objects of the same type into a single object. This operation is useful for consolidating duplicate records and ensuring data consistency. The request requires specifying the primary object and the object to be merged.

export const UserLevelAccessCallout = () => <div className="px-5 py-3.5 gap-3 flex flex-row">
    <div>
      <Icon icon="user" size={16} />
    </div>
    <div>
      Supports <a href="/docs/apps/developer-platform/build-apps/authentication/user-level-apps">user-level access</a>.
    </div>
  </div>;

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="ENTERPRISE" salesLevel="ENTERPRISE" serviceLevel="ENTERPRISE" cmsLevel="ENTERPRISE" />
  </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',
  'oauth',
  '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>

  <UserLevelAccessCallout />
</AccordionGroup>


## OpenAPI

````yaml specs/2026-09/crm-custom-objects-v2026-09.json POST /crm/objects/2026-09/{objectType}/merge
openapi: 3.0.1
info:
  title: Custom Objects
  description: Basepom for all HubSpot Projects
  version: 2026-09
  x-hubspot-product-tier-requirements:
    marketing: FREE
    sales: FREE
    service: FREE
    cms: FREE
    commerce: FREE
    crmHub: FREE
    dataHub: FREE
  x-hubspot-api-use-case: >-
    After creating a Cars custom object, you can create a record for each car,
    then associate it with the contact who bought it.
  x-hubspot-introduction: >-
    Use the objects API to create and manage records for an object. The
    endpoints can be used for objects included in all accounts, such as contacts
    and companies, as well as for custom objects in Enterprise accounts.
servers:
  - url: https://api.hubapi.com
security: []
tags:
  - name: Advanced
  - name: Basic
  - name: Batch
  - name: Search
paths:
  /crm/objects/2026-09/{objectType}/merge:
    post:
      tags:
        - Advanced
      summary: Merge objects
      description: >-
        Merge two CRM objects of the same type into a single object. This
        operation is useful for consolidating duplicate records and ensuring
        data consistency. The request requires specifying the primary object and
        the object to be merged.
      operationId: >-
        post-/crm/objects/2026-09/{objectType}/merge_/crm/objects/2026-09-beta/{objectType}/merge
      parameters:
        - name: objectType
          in: path
          description: >-
            The type of the CRM object to be merged, such as contacts,
            companies, or deals.
          required: true
          style: simple
          explode: false
          schema:
            type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PublicMergeInput'
        required: true
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SimplePublicObject'
        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.appointments.sensitive.read.v2
        - oauth2:
            - crm.objects.contacts.highly_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.calls.read
        - oauth2:
            - crm.objects.users.write
        - 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:
            - crm.objects.commercepayments.read
        - oauth2:
            - crm.objects.products.write
        - oauth2:
            - crm.objects.feedback_submissions.read
        - 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.projects.highly_sensitive.read
        - oauth2:
            - crm.objects.invoices.read
        - oauth2:
            - crm.objects.custom.write
        - oauth2:
            - tickets.sensitive.v2
        - oauth2:
            - crm.objects.deals.write
        - oauth2:
            - e-commerce
        - oauth2:
            - crm.objects.appointments.read
        - oauth2:
            - crm.objects.projects.read
        - oauth2:
            - crm.objects.companies.sensitive.write.v2
        - oauth2:
            - crm.objects.companies.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.deals.highly_sensitive.write.v2
        - oauth2:
            - crm.objects.custom.highly_sensitive.read.v2
        - oauth2:
            - crm.objects.goals.write
        - oauth2:
            - crm.objects.projects.sensitive.read
        - oauth2:
            - crm.objects.line_items.write
        - 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.projects.sensitive.write
        - oauth2:
            - crm.objects.deals.sensitive.read.v2
        - 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:
    PublicMergeInput:
      required:
        - objectIdToMerge
        - primaryObjectId
      type: object
      properties:
        objectIdToMerge:
          type: string
          description: >-
            The unique identifier of the object that will be merged into the
            primary object. This is a string.
        primaryObjectId:
          type: string
          description: >-
            The unique identifier of the primary object that will remain after
            the merge. This is a string.
      description: Input data for merging two records.
    SimplePublicObject:
      required:
        - archived
        - createdAt
        - id
        - properties
        - updatedAt
      type: object
      properties:
        archived:
          type: boolean
          description: A boolean indicating whether this object is archived.
        archivedAt:
          type: string
          description: The date and time when this object was archived, in ISO 8601 format.
          format: date-time
        createdAt:
          type: string
          description: The date and time when this object was created, in ISO 8601 format.
          format: date-time
        id:
          type: string
          description: The unique identifier for this object, represented as a string.
        objectWriteTraceId:
          type: string
          description: A string used to trace the write operations for this object.
        properties:
          type: object
          additionalProperties:
            type: string
          description: >-
            A map of property names to their corresponding values, where each
            value is a string.
        propertiesWithHistory:
          type: object
          additionalProperties:
            type: array
            items:
              $ref: '#/components/schemas/ValueWithTimestamp'
          description: >-
            A map of property names to arrays of values with timestamps, showing
            the history of changes for each property.
        updatedAt:
          type: string
          description: >-
            The date and time when this object was last updated, in ISO 8601
            format.
          format: date-time
        url:
          type: string
          description: A string representing the URL associated with this object.
        warnings:
          type: array
          description: >-
            An array of warnings related to this object, each containing a
            category, message, and context.
          items:
            $ref: '#/components/schemas/PublicObjectWarning'
      description: A simple public object.
    ValueWithTimestamp:
      required:
        - sourceType
        - timestamp
        - value
      type: object
      properties:
        sourceId:
          type: string
          description: >-
            The identifier of the source from which the value originated. This
            is a string.
        sourceLabel:
          type: string
          description: A label describing the source of the value. This is a string.
        sourceType:
          type: string
          description: >-
            The type of source from which the value originated. This is a
            string.
        timestamp:
          type: string
          description: The date and time when the value was recorded, in ISO 8601 format.
          format: date-time
        updatedByUserId:
          type: integer
          description: >-
            The user ID of the person who last updated the value. This is an
            integer.
          format: int32
        value:
          type: string
          description: >-
            The value associated with the timestamp. It is represented as a
            string.
      description: Property model that includes timestamp.
    PublicObjectWarning:
      required:
        - category
        - context
        - message
      type: object
      properties:
        category:
          type: string
          description: A string indicating the category of the warning.
        context:
          type: object
          additionalProperties:
            type: string
          description: >-
            An object providing additional context for the warning, with string
            values.
        message:
          type: string
          description: A string containing the warning message.
      description: >-
        Represents a warning message related to a public object in HubSpot,
        providing details about the nature and context of the warning.
    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, represented as an object with
            additional properties that are arrays of strings.
          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. It is formatted as a UUID.
          format: uuid
          example: aeb5f871-7f07-4993-9211-075dc63e7cbf
        errors:
          type: array
          description: >-
            Further information about the error, represented as an array of
            ErrorDetail objects.
          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
    ErrorDetail:
      required:
        - message
      type: object
      properties:
        code:
          type: string
          description: The status code associated with the error detail. This is a string.
        context:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
          description: >-
            Context about the error condition, represented as an object with
            additional properties that are arrays of strings.
          example: '{missingScopes=[scope1, scope2]}'
        in:
          type: string
          description: >-
            The name of the field or parameter in which the error was found.
            This is a string.
        message:
          type: string
          description: >-
            A human readable message describing the error along with remediation
            steps where appropriate. This is a string.
        subCategory:
          type: string
          description: >-
            A specific category that contains more specific detail about the
            error. This is a string.
      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.
  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.feedback_submissions.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: ''
            tickets.highly_sensitive.v2: ''
            tickets.sensitive.v2: ''

````