Update Contact

https://mailchimp.com/audiences/{audience_id}/contacts/{contact_id}

Update an existing omni-channel contact.

Access Token Required: API Key

Path Parameters

audience_idstringrequired

The unique ID for the audience.

contact_idstringrequired

The unique id for the contact.

Query Params

merge_field_validation_modestring

Defines how merge field validation is handled. When set to `ignore_required_checks`, the API does not raise an error if required merge fields are missing from the request. When set to `strict`, the API enforces validation and returns an error if any required merge field is not provided. If this setting is omitted, `strict` is applied by default.

data_modestring

Indicates the data processing mode. In `historical` mode, contact data changes do not trigger automations or webhooks. In `live mode`, such changes do trigger them.

Responses

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

Language

CredentialsAPI KEY

API Key

Enter token below to save for later

cURL Request

1curl --request PATCH \
2     --url 'https://mailchimp.com/audiences/{audience_id}/contacts/{contact_id}' \
3     --header 'accept: application/json' \
4     --header 'content-type: application/json'

Response

1{
2  "success": true,
3  "data": {
4    "id": "abc123",
5    "created_at": "2025-01-01T00:00:00Z"
6  }
7}

PATCH