---
title: "Add subjects to a draft registration"
method: POST
path: "/draft_registrations/{draft_id}/relationships/subjects/"
tags: ["Draft Registrations", "Subjects"]
---

# Add subjects to a draft registration

`POST /draft_registrations/{draft_id}/relationships/subjects/`

Add one or more subjects to the draft registration by their identifiers.
This modifies the subjects relationship and does not affect the subject resource itself.

## Path parameters

- `draft_id` string, required

## Request body

- object
  - `data` object[], required
    - `type` string, required — The resource type; must be `subjects`.
    - `id` string, required — The unique ID of the subject to add.

## Response `204`

Subjects added successfully.

## Other responses

- `403` — Forbidden. You don't have permission to modify subjects.
- `404` — Draft registration not found.

---

[API](https://skmtc.net/osf/apis/osf-apiv2-documentation.md) · [All operations](https://skmtc.net/osf/apis/osf-apiv2-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/osf/osf-apiv2-documentation/versions/ca701048eb0d/schema)