---
updatedAt: 2025-09-24T20:45:30.000Z
agentTools:
  projectIndex: https://docs.smartsurvey.io/v1/llms.txt
---

# contactlists/customcolumns

Insert a new email contact list that has custom columns.

# OpenAPI definition

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "api-settings",
    "version": "1"
  },
  "servers": [
    {
      "url": "https://api.smartsurvey.io/v1"
    }
  ],
  "components": {
    "securitySchemes": {
      "sec0": {
        "type": "http",
        "scheme": "basic"
      }
    }
  },
  "security": [
    {
      "sec0": []
    }
  ],
  "paths": {
    "/contactlists/customcolumns": {
      "post": {
        "summary": "contactlists/customcolumns",
        "description": "Insert a new email contact list that has custom columns.",
        "operationId": "contactlists-1",
        "parameters": [
          {
            "name": "title",
            "in": "query",
            "description": "The name of the contact list",
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "customcolumns",
            "in": "query",
            "description": "the names of the custom columns, as a comma-seperated list. Example: region,product_code,order_date",
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "200",
            "content": {
              "application/json": {
                "examples": {
                  "Result": {
                    "value": "{\n    \"id\": 12345,\n    \"type\": \"email\",\n    \"title\": \"New Contact List\",\n    \"date_created\": \"2017-11-08T15:58:31Z\",\n    \"contacts\": 0,\n  \"custom_columns\": [\n    \"region\",\n    \"product_code\",\n    \"order_date\"\n    \"href\": \"https://api.smartsurvey.io/v1/contactlists/12345\"\n}"
                  }
                }
              }
            }
          }
        },
        "deprecated": false
      }
    }
  },
  "x-readme": {
    "headers": [],
    "explorer-enabled": true,
    "proxy-enabled": true
  },
  "x-readme-fauxas": true
}
```