---
title: "Changes to Create a custom attribute"
method: POST
path: "/custom-attributes"
---

# Changes to Create a custom attribute

`POST /custom-attributes`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `31e7bd6f37e9`: 12 breaking, 38 info

## Changes

- **2026-11-03** `31e7bd6f37e9`: 12 breaking, 38 info
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_ONLY]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_ONLY]/type` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_TIME]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_TIME]/type` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_MULTI_SELECT]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_MULTI_SELECT]/type` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_NUMBER]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_NUMBER]/type` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_SINGLE_SELECT]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_SINGLE_SELECT]/type` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_TEXT]/name` became required
  - the request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_TEXT]/type` became required
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_ONLY]/read_only`
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_DATE_TIME]/read_only`
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_MULTI_SELECT]/read_only`
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_NUMBER]/read_only`
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_SINGLE_SELECT]/read_only`
  - added the new optional request property `oneOf[#/components/schemas/CREATE_CONTACT_ATTRIBUTE_TEXT]/read_only`
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_ONLY]/read_only` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_TIME]/read_only` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_MULTI_SELECT]/read_only` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_NUMBER]/read_only` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_SINGLE_SELECT]/read_only` to the response with the `200` status
  - added the optional property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_TEXT]/read_only` to the response with the `200` status
  - the response property `errors` became required for the status `401`
  - the response property `errors` became required for the status `403`
  - the response property `errors` became required for the status `404`
  - the response property `errors` became required for the status `500`
  - the response property `errors/items/status_code` became required for the status `401`
  - the response property `errors/items/status_code` became required for the status `403`
  - the response property `errors/items/status_code` became required for the status `404`
  - the response property `errors/items/status_code` became required for the status `500`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_ONLY]/id` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_ONLY]/name` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_TIME]/id` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_DATE_TIME]/name` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_MULTI_SELECT]/id` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_MULTI_SELECT]/name` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_MULTI_SELECT]/option_values` became required for the status `200`
  - the response property `oneOf[#/components/schemas/CONTACT_ATTRIBUTE_RESPONSE_MULTI_SELECT]/option_values/items/id` became required for the status `200`
  - …10 more

---

[Operation](https://skmtc.dev/superchat/apis/superchat-api/docs/custom-attributes/post.md) - [API](https://skmtc.dev/superchat/apis/superchat-api.md) - [Page](https://skmtc.dev/superchat/apis/superchat-api/changes/custom-attributes/post)