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PUT
/
crm
/
v4
/
objects
/
{objectType}
/
{objectId}
/
associations
/
{toObjectType}
/
{toObjectId}
Create
curl --request PUT \
  --url https://api.hubapi.com/crm/v4/objects/{objectType}/{objectId}/associations/{toObjectType}/{toObjectId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "associationCategory": "HUBSPOT_DEFINED",
    "associationTypeId": 123
  }
]
'
{
  "createdResourceId": "<string>",
  "entity": {
    "fromObjectId": "<string>",
    "fromObjectTypeId": "<string>",
    "labels": [
      "<string>"
    ],
    "toObjectId": "<string>",
    "toObjectTypeId": "<string>"
  },
  "location": "<string>"
}

Supported products

Requires one of the following products or higher.
Marketing HubMarketing Hub -Free
Sales HubSales Hub -Free
Service HubService Hub -Free
Content HubContent Hub -Free
Data HubData Hub -Free

Authorizations

​
Authorization
string
header
required

The access token received from the authorization server in the OAuth 2.0 flow.

Path Parameters

​
objectId
string
required

The unique identifier for the source object in the association to be created.

​
objectType
string
required

Specifies the type of the source object in the association to be created.

​
toObjectId
string
required

The unique identifier for the target object in the association to be created.

​
toObjectType
string
required

Specifies the type of the target object in the association to be created.

Body

application/json
​
associationCategory
enum<string>
required

The category of the association, such as "HUBSPOT_DEFINED".

Available options:
HUBSPOT_DEFINED,
INTEGRATOR_DEFINED,
USER_DEFINED
​
associationTypeId
integer<int32>
required

The ID representing the specific type of association.

Response

successful operation

​
createdResourceId
string
required

The unique identifier of the newly created resource.

​
entity
object
required
​
location
string

The URL location of the newly created resource.

Last modified on December 16, 2025