---
title: "Changes to Create a custom property"
method: POST
path: "/contact-properties"
---

# Changes to Create a custom property

`POST /contact-properties`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 7 revisions.

- **2026-09-30** `4dc1e20989c8`: 15 warning
- **2026-09-29** `ef5b22b98333`: 4 breaking, 1 warning, 11 info

## Changes

- **2026-09-30** `4dc1e20989c8`: 15 warning
  - added the new `daily_limit_exceeded` enum value to the `anyOf[#/components/schemas/Error]/code` response property for the response status `403`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `400`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `401`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `409`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `429`
  - added the new `monthly_limit_exceeded` enum value to the `anyOf[#/components/schemas/Error]/code` response property for the response status `403`
  - added the new `monthly_limit_exceeded` enum value to the `code` response property for the response status `400`
  - added the new `monthly_limit_exceeded` enum value to the `code` response property for the response status `401`
  - added the new `monthly_limit_exceeded` enum value to the `code` response property for the response status `409`
  - added the new `monthly_limit_exceeded` enum value to the `code` response property for the response status `429`
  - added the new `send_limit_exceeded` enum value to the `anyOf[#/components/schemas/Error]/code` response property for the response status `403`
  - added the new `send_limit_exceeded` enum value to the `code` response property for the response status `400`
  - added the new `send_limit_exceeded` enum value to the `code` response property for the response status `401`
  - added the new `send_limit_exceeded` enum value to the `code` response property for the response status `409`
  - added the new `send_limit_exceeded` enum value to the `code` response property for the response status `429`
- **2026-09-29** `ef5b22b98333`: 4 breaking, 1 warning, 11 info
  - added the new required request property `label`
  - removed the enum value `string` of the request property `type`
  - the `name` request property's minLength was increased from `0` to `1`
  - removed the success response with the status `200`
  - the `name` request property's maxLength was set to `100`
  - added the new optional request property `options`
  - added the new optional request property `required`
  - the request property `type` became optional
  - added the new `select` enum value to the request property `type`
  - added the new `text` enum value to the request property `type`
  - added the non-success response with the status `400`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `409`
  - added the non-success response with the status `429`
  - added the success response with the status `201`

---

[Operation](https://skmtc.dev/poststack/apis/poststack-api/docs/contact-properties/post.md) - [API](https://skmtc.dev/poststack/apis/poststack-api.md) - [Page](https://skmtc.dev/poststack/apis/poststack-api/changes/contact-properties/post)