List custom fields

GET

/api/custom-fields

Retrieve every custom field defined for your account, oldest first.

Request

None

Responses

🟢200

application/json

Custom fields retrieved

Bodyapplication/json

🟠401Unauthorized

🟠403EmailNotVerified

Response Example

200 - Success

{
    "customFields": [
        {
            "id": "01JA2Z3NDEKTSV4RRFFQ69G5FA",
            "key": "latest_destination",
            "label": "Latest Destination",
            "dataType": "text",
            "mergeTag": "{{customFields.latest_destination}}",
            "createdAt": "2026-10-07T10:00:00.000Z",
            "updatedAt": "2026-10-07T10:00:00.000Z"
        }
    ]
}

Modified at 2026-10-08 06:32:45

Delete a tag

Create a custom field