---
title: "Changes to ✨ Bulk assign users to tasks"
method: POST
path: "/api/projects/{id}/tasks/assignees"
---

# Changes to ✨ Bulk assign users to tasks

`POST /api/projects/{id}/tasks/assignees`

> Every recorded change to this endpoint, newest first.
> 98 revisions in range; 1 not diffed.

## Timeline

Changed in 5 of 98 revisions.

- **2026-08-18** `6adc11ca4fec` — 1 info
- **2026-08-07** `e1ba2ecdbabb` — 3 breaking, 2 warning, 3 info
- **2026-07-27** `b9100d884b0b` — 1 info
- **2026-07-07** `0edb4e1e9592` — 1 info
- **2026-05-18** `c80722dcb684` — 2 info

## Changes

- **2026-08-18** `6adc11ca4fec` — 1 info
  - added the optional property `task_ids` to the response with the `201` status
- **2026-08-07** `e1ba2ecdbabb` — 3 breaking, 2 warning, 3 info
  - request body became required
  - added `#/components/schemas/PrepareParamsFiltersRequest` to the `filters` request property `allOf` list
  - the `filters` request property type/format changed from `object`/`` to ``/``
  - removed the request property `filters/conjunction`
  - removed the request property `filters/items`
  - added the media type `application/x-www-form-urlencoded` to the request body
  - added the media type `multipart/form-data` to the request body
  - the request property `filters` became nullable
- **2026-07-27** `b9100d884b0b` — 1 info
  - added the new optional request property `filters/items/items/child_filters`
- **2026-07-07** `0edb4e1e9592` — 1 info
  - api operation id `api_projects_tasks_assignees_create` removed and replaced with `api_projects_tasks_assignees_bulk_create`
- **2026-05-18** `c80722dcb684` — 2 info
  - added the new `in_list` enum value to the request property `filters/items/items/operator`
  - added the new `not_in_list` enum value to the request property `filters/items/items/operator`

---

[Operation](https://skmtc.dev/humansignal/apis/label-studio-api/docs/api/projects/:id/tasks/assignees/post.md) · [API](https://skmtc.dev/humansignal/apis/label-studio-api.md) · [Page](https://skmtc.dev/humansignal/apis/label-studio-api/changes/api/projects/:id/tasks/assignees/post)