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PUT
/
crm
/
objects
/
2026-03
/
{objectType}
/
{objectId}
/
associations
/
{toObjectType}
/
{toObjectId}
cURL
curl --request PUT \
  --url https://api.hubapi.com/crm/objects/2026-03/{objectType}/{objectId}/associations/{toObjectType}/{toObjectId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "associationCategory": "HUBSPOT_DEFINED",
    "associationTypeId": 123
  }
]
'
{
  "fromObjectId": "<string>",
  "fromObjectTypeId": "<string>",
  "labels": [
    "<string>"
  ],
  "toObjectId": "<string>",
  "toObjectTypeId": "<string>"
}

Supported products

Authorizations

​
Authorization
string
header
required

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

Path Parameters

​
objectId
string
required
​
objectType
string
required
​
toObjectId
string
required
​
toObjectType
string
required

Body

application/json
​
associationCategory
enum<string>
required

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

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

The ID representing the specific type of association.

Response

successful operation

The relationship descriptors applicable between two object types.

​
fromObjectId
string
required

Source unique ID of the object.

​
fromObjectTypeId
string
required

Source object type.

​
labels
string[]
required
​
toObjectId
string
required

Target unique ID of the object.

​
toObjectTypeId
string
required

Target object type.

Last modified on March 30, 2026