---
title: "Bulk create custom fields"
method: POST
path: "/v4/bulk/custom_fields"
tags: ["Custom Fields"]
---

# Bulk create custom fields

`POST /v4/bulk/custom_fields`

See "[Bulk & async processing](#bulk-amp-async-processing)" for more information.

## Request body

- object
  - `custom_fields` object[], required
    - `label` string, required
  - `callback_url` string, nullable

## Response `200`

Creates the custom_fields synchronously when 100 or less custom fields are requested

- object
  - `custom_fields` object[], required
    - `id` integer, required
    - `label` string, required
    - `key` string, required
    - `name` string, required
    - `created_at` string, required
  - `failures` unknown[], required
    - unknown

## Other responses

- `202` — Creates or updates custom_fields asynchronously when more than 100 custom fields are requested
- `401` — Returns a 401 if the token and/or account cannot be authenticated
- `413` — Returns a 413 when the size of the request would exceed the account's data limit for enqueued bulk requests
- `422` — Returns a 422 when `custom_fields` is empty or not an array

---

[API](https://skmtc.net/kit/apis/kit-api.md) · [All operations](https://skmtc.net/kit/apis/kit-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/kit/kit-api/revisions/0df0c90d12da/schema)