HubSpot: Merge objects — objects merge Objects

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Operation hubspot.objects_merge_objects

Provider route: POST /crm/objects/2026-09/{objectType}/merge. Alter supplies the connection’s credentials and routing.

Call through Alter

Install @alter-ai/sdk @alter-ai/hubspot with npm, or alter-sdk-hubspot with pip. Supply your connected customer’s grant ID and the arguments described below.

import { App } from "@alter-ai/sdk";
import { HubSpotIntegration } from "@alter-ai/hubspot";

async function execute(input: Parameters<HubSpotIntegration["objects"]["mergeObjects"]>[0]) {
  const app = new App({ apiKey: process.env.ALTER_API_KEY! });
  try {
    const provider = new HubSpotIntegration(app, { grantId: process.env.PROVIDER_GRANT_ID! });
    const call = await provider.objects.mergeObjects(input);
    const result = await call.wait();
    return result.bodyJson();
  } finally {
    await app.close();
  }
}

import os
from alter_sdk import App
from alter_sdk_hubspot import HubSpotIntegration

async def execute(arguments):
    async with App(api_key=os.environ["ALTER_API_KEY"]) as app:
        provider = HubSpotIntegration(app, {"grant_id": os.environ["PROVIDER_GRANT_ID"]})
        call = await provider.objects.merge_objects(arguments)
        result = await call.wait()
        return result.body_json()

Input

Field	Type	Presence	Description and constraints
$	object	Root	Additional keys: not allowed
path	object	Required within parent	Additional keys: not allowed
path.objectType	string	Required within parent
body	Model	Required within parent	Expand Merge objects — leads merge — request body — body

Referenced models: Merge objects — leads merge — request body — body

Response

Response media type: application/json. The table describes the pinned successful response. Referenced models link to their complete fields.

Field	Type	Presence	Description and constraints
$	Model	Root	Expand Create — objects create Object — response body

Referenced models: Create — objects create Object — response body

Schemas

Merge objects — leads merge — request body — body

Field	Type	Presence	Description and constraints
$	object	Root	Input data for merging two records.
objectIdToMerge	string	Required within parent	The unique identifier of the object that will be merged into the primary object. This is a string.
primaryObjectId	string	Required within parent	The unique identifier of the primary object that will remain after the merge. This is a string.

Create — objects create Object — response body

Field	Type	Presence	Description and constraints
$	object	Root	A simple public object.
archived	boolean	Required within parent	A boolean indicating whether this object is archived.
archivedAt	string	Optional	The date and time when this object was archived, in ISO 8601 format. Format: date-time
createdAt	string	Required within parent	The date and time when this object was created, in ISO 8601 format. Format: date-time
id	string	Required within parent	The unique identifier for this object, represented as a string.
objectWriteTraceId	string	Optional	A string used to trace the write operations for this object.
properties	object	Required within parent	A map of property names to their corresponding values, where each value is a string. Additional keys: see wildcard field
properties.*	string	Additional keys
propertiesWithHistory	object	Optional	A map of property names to arrays of values with timestamps, showing the history of changes for each property. Additional keys: see wildcard field
propertiesWithHistory.*	array	Additional keys
propertiesWithHistory.*[]	Model	Each item	Expand Read — objects get Object — response body — properties With History value item
updatedAt	string	Required within parent	The date and time when this object was last updated, in ISO 8601 format. Format: date-time
url	string	Optional	A string representing the URL associated with this object.
warnings	array	Optional	An array of warnings related to this object, each containing a category, message, and context.
warnings[]	Model	Each item	Expand Read — objects get Object — response body — warnings item

Referenced models: Read — objects get Object — response body — warnings item, Read — objects get Object — response body — properties With History value item

Read — objects get Object — response body — warnings item

Field	Type	Presence	Description and constraints
$	object	Root	Represents a warning message related to a public object in HubSpot, providing details about the nature and context of the warning.
category	string	Required within parent	A string indicating the category of the warning.
context	object	Required within parent	An object providing additional context for the warning, with string values. Additional keys: see wildcard field
context.*	string	Additional keys
message	string	Required within parent	A string containing the warning message.

Read — objects get Object — response body — properties With History value item

Field	Type	Presence	Description and constraints
$	object	Root	Property model that includes timestamp.
sourceId	string	Optional	The identifier of the source from which the value originated. This is a string.
sourceLabel	string	Optional	A label describing the source of the value. This is a string.
sourceType	string	Required within parent	The type of source from which the value originated. This is a string.
timestamp	string	Required within parent	The date and time when the value was recorded, in ISO 8601 format. Format: date-time
updatedByUserId	JSON	Optional
updatedByUserId (anyOf 1)	integer	Alternative	The user ID of the person who last updated the value. This is an integer. Format: int32
updatedByUserId (anyOf 2)	string	Alternative	Pattern: ^-?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?$
value	string	Required within parent	The value associated with the timestamp. It is represented as a string.

Policy, approvals and errors

SDK function policy ID: hubspot.objects_merge_objects. Catalog operation: objects_merge_objects. Rules can name either ID; function rules distinguish managed calls and conservatively cover raw calls sharing the route. Existing grant permissions and policy rules apply. wait() returns an immediate result or waits for a required approval; it never approves the request itself. Persist the approval ID to resume after a restart.

Provider errors retain their response; JSON decoding raises ProviderAPIError for provider failures. ManagedOperationError identifies contract/input/retention errors. See error handling and provider-specific behavior. Sensitive input may be refused before approval storage. A decoding error never resubmits a write.

Required provider scopes: ["crm.objects.appointments.sensitive.write.v2", "crm.objects.appointments.write", "crm.objects.carts.write", "crm.objects.commercepayments.write", "crm.objects.companies.highly_sensitive.write.v2", "crm.objects.companies.sensitive.write.v2", "crm.objects.companies.write", "crm.objects.contacts.highly_sensitive.write.v2", "crm.objects.contacts.sensitive.write.v2", "crm.objects.contacts.write", "crm.objects.courses.write", "crm.objects.custom.highly_sensitive.write.v2", "crm.objects.custom.sensitive.write.v2", "crm.objects.custom.write", "crm.objects.deals.highly_sensitive.write.v2", "crm.objects.deals.sensitive.write.v2", "crm.objects.deals.write", "crm.objects.goals.write", "crm.objects.invoices.write", "crm.objects.leads.write", "crm.objects.line_items.write", "crm.objects.listings.write", "crm.objects.orders.write", "crm.objects.partner-clients.write", "crm.objects.partner-services.write", "crm.objects.products.write", "crm.objects.projects.highly_sensitive.write", "crm.objects.projects.sensitive.write", "crm.objects.projects.write", "crm.objects.quotes.write", "crm.objects.services.write", "crm.objects.subscriptions.write", "crm.objects.tickets.highly_sensitive.write", "crm.objects.tickets.sensitive.write", "crm.objects.users.write", "e-commerce", "oauth", "tickets", "tickets.highly_sensitive.v2", "tickets.sensitive.v2"]

Official provider source