---
title: "Update task input"
method: PUT
path: "/v2/actor-tasks/{actorTaskId}/input"
tags: ["Actor tasks"]
---

# Update task input

`PUT /v2/actor-tasks/{actorTaskId}/input`

Updates the input of a task using values specified by an object passed as
JSON in the PUT payload.

If the object does not define a specific property, its value is not updated.

The response is the full task input as returned by the
[Get task input](#/reference/tasks/task-input-object/get-task-input) endpoint.

The request needs to specify the `Content-Type: application/json` HTTP
header!

When providing your API authentication token, we recommend using the
request's `Authorization` header, rather than the URL. ([More
info](#/introduction/authentication)).

## Path parameters

- `actorTaskId` string, required

## Request body

- object

## Response `200`

- object

## Other responses

- `400` — Bad request - invalid input parameters or request body.
- `401` — Unauthorized - authentication required or invalid token.
- `403` — Forbidden - insufficient permissions to perform this action.
- `404` — Not found - the requested resource does not exist.
- `405` — Method not allowed.
- `413` — Payload too large - the request body exceeds the size limit.
- `415` — Unsupported media type - the Content-Encoding of the request is not supported.
- `429` — Too many requests - rate limit exceeded.

## Changes

- **2026-08-28** `0a98d6a098a4` — 8 warning
  - added the new `cannot-publish-actor-task` enum value to the `error/type` response property for the response status `400`
  - added the new `cannot-publish-actor-task` enum value to the `error/type` response property for the response status `401`
  - added the new `cannot-publish-actor-task` enum value to the `error/type` response property for the response status `403`
  - added the new `cannot-publish-actor-task` enum value to the `error/type` response property for the response status `404`
  - …4 more
- **2026-07-26** `b94a8abdfff1` — 8 warning
  - added the new `cannot-monetize-without-payout-billing-info` enum value to the `error/type` response property for the response status `400`
  - added the new `cannot-monetize-without-payout-billing-info` enum value to the `error/type` response property for the response status `401`
  - added the new `cannot-monetize-without-payout-billing-info` enum value to the `error/type` response property for the response status `403`
  - added the new `cannot-monetize-without-payout-billing-info` enum value to the `error/type` response property for the response status `404`
  - …4 more

[Change history](https://skmtc.dev/apify/apis/apify-api/changes/v2/actor-tasks/:actorTaskId/input/put.md)

---

[API](https://skmtc.dev/apify/apis/apify-api.md) · [All operations](https://skmtc.dev/apify/apis/apify-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/apify/apify-api/revisions/0a98d6a098a4/schema)