---
title: "Create Portal Message"
method: POST
path: "/v1/subject-rights/requests/{requestId}/portal-messages"
tags: ["subjectRightsPortal"]
---

# Create Portal Message

`POST /v1/subject-rights/requests/{requestId}/portal-messages`

## Request

- Base URL: `https://api.osano.com`
- URL: `https://api.osano.com/v1/subject-rights/requests/{requestId}/portal-messages`
- Auth: API key in header `x-osano-api-key`
- TypeScript: <https://skmtc.dev/osano/apis/osano-api-reference/docs/v1/subject-rights/requests/:requestId/portal-messages/post.ts> (a function with typed inputs; its response is checked against the schema)

Create a new message for a specific request

## Path parameters

- `requestId` string, required

## Request body

- PortalMessage
  - `content` string, required

## Response `204`

Success

## Other responses

- `400`: Bad Request

## Changes

- **2026-05-12** `4fc37598750d`: 1 breaking, 1 warning
  - added the new path request parameter `requestId`
  - deleted the `query` request parameter `dsarId`

[Operation history](https://skmtc.dev/osano/apis/osano-api-reference/changes/v1/subject-rights/requests/:requestId/portal-messages/post.md)

---

[API](https://skmtc.dev/osano/apis/osano-api-reference.md) - [All operations](https://skmtc.dev/osano/apis/osano-api-reference/llms.txt) - [OpenAPI document](https://skmtc.dev/osano/apis/osano-api-reference/revisions/ac31099cf83e?raw)