---
title: "POST /projects/{project}/zones/{zone}/instanceGroupManagers/{instanceGroupManager}/setTargetPools"
method: POST
path: "/projects/{project}/zones/{zone}/instanceGroupManagers/{instanceGroupManager}/setTargetPools"
tags: ["instanceGroupManagers"]
---

# POST /projects/{project}/zones/{zone}/instanceGroupManagers/{instanceGroupManager}/setTargetPools

`POST /projects/{project}/zones/{zone}/instanceGroupManagers/{instanceGroupManager}/setTargetPools`

Modifies the target pools to which all instances in this managed instance
group are assigned. The target pools automatically apply to all of the
instances in the managed instance group. This operation is markedDONE when you make the request even if the instances have not
yet been added to their target pools. The change might take some time to
apply to all of the instances in the group depending on the size of the
group.

## Path parameters

- `project` string, required
- `zone` string, required
- `instanceGroupManager` string, required

## Query parameters

- `requestId` string

## Request body

- InstanceGroupManagersSetTargetPoolsRequest
  - `targetPools` string[] — The list of target pool URLs that instances in this managed instance group belong to. The managed instance group applies these target pools to all of the instances in the group. Existing instances and new instances in the group all receive these target pool settings.
  - `fingerprint` string, byte — The fingerprint of the target pools information. Use this optional property to prevent conflicts when multiple users change the target pools settings concurrently. Obtain the fingerprint with theinstanceGroupManagers.get method. Then, include the fingerprint in your request to ensure that you do not overwrite changes that were applied from another concurrent request.

## Response `200`

Successful response

---

[API](https://skmtc.net/google/apis/compute.md) · [All operations](https://skmtc.net/google/apis/compute/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/google/compute/revisions/6120ed8969d4/schema)