Create Contact Custom Field

Creates a contact custom field in Constant Contact.

POST

Query

Field selectionChoose which fields should be included in the response. Learn more

string

Comma-separated response fields to include.

Body

Arguments

stringrequired

Custom field label shown in the Constant Contact UI.

stringrequired

Data value type for the custom field.

Uncommon arguments

object

Display and validation metadata object for the custom field.

array of object

Choices array for single_select or multi_select field types.

number

Datetime version for date fields (1 legacy string, 2 native date).

Try this request

Request

curl --request POST \
  --url "https://connect.mindcloud.co/v1/universal/constantContact/latest/actions/create-contact-custom-field" \
  --header "Authorization: Bearer $MINDCLOUD_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "connectionId": "$CONNECTION_ID",
  "label": "",
  "type": ""
}'

{
  "success": true,
  "data": [
    {
      "choices": [
        {}
      ],
      "createdAt": "2026-05-07T12:00:00.000Z",
      "customFieldId": "string",
      "label": "string",
      "metadata": {},
      "name": "Ava Chen",
      "type": "string",
      "updatedAt": "2026-05-07T12:00:00.000Z",
      "version": 1
    }
  ],
  "meta": {}
}

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