---
title: "Updates the properties of the specified Pool."
method: PATCH
path: "/pools/{poolId}"
tags: ["Pools"]
---

# Updates the properties of the specified Pool.

`PATCH /pools/{poolId}`

This only replaces the Pool properties specified in the request. For example,
if the Pool has a StartTask associated with it, and a request does not specify
a StartTask element, then the Pool keeps the existing StartTask.

## Path parameters

- `poolId` string, required

## Query parameters

- `api-version` string, required
- `timeOut` integer

## Headers

- `client-request-id` string
- `return-client-request-id` boolean
- `ocp-date` string, date-time-rfc7231
- `If-Modified-Since` string, date-time-rfc7231
- `If-Unmodified-Since` string, date-time-rfc7231
- `If-Match` string
- `If-None-Match` string

## Response `200`

The request has succeeded.

## Other responses

- `default` — An unexpected error response.

## Changes

- **2026-07-13** `8427acd8fd77` — 1 warning, 2 info
  - deleted the `query` request parameter `timeout`
  - api operation id `Pool_Patch` removed and replaced with `Pools_UpdatePool`
  - added the new optional `query` request parameter `timeOut`

[Change history](https://skmtc.dev/azure/apis/batch-batch/changes/pools/:poolId/patch.md)

---

[API](https://skmtc.dev/azure/apis/batch-batch.md) · [All operations](https://skmtc.dev/azure/apis/batch-batch/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/azure/batch-batch/revisions/8427acd8fd77/schema)