---
title: "Update a property definition"
method: PATCH
path: "/data_stream_property_definitions/{id}"
---

# Update a property definition

`PATCH /data_stream_property_definitions/{id}`

Update the name or optional flag of a property definition.

## Path parameters

- `id` string, required

## Request body

- object
  - `name` string
  - `optional` boolean

## Response `200`

Property definition updated

- RecordPropertyDefinition
  - `id` integer
  - `key` string, required
  - `name` string, required
  - `type` 'number' | 'date' | 'datetime' | 'string' | 'boolean', required
  - `optional` boolean
  - `data_stream_key` string, required — Must match an existing DataStream.key

---

[API](https://skmtc.net/endclose/apis/end-close-api.md) · [All operations](https://skmtc.net/endclose/apis/end-close-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/endclose/end-close-api/revisions/613ceff68dc7/schema)