---
title: "Changes to Send a Message"
method: POST
path: "/v3/grants/{grant_id}/messages/send"
---

# Changes to Send a Message

`POST /v3/grants/{grant_id}/messages/send`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 16 revisions.

- **2026-09-29** `a669a04b02ba`: 2 breaking, 2 info
- **2026-09-26** `763d6b969cd7`: 1 info

## Changes

- **2026-09-29** `a669a04b02ba`: 2 breaking, 2 info
  - removed the required property `grant_id` from the response with the `200` status
  - removed the required property `grant_id` from the response with the `202` status
  - added the optional property `data/send_at` to the response with the `200` status
  - added the optional property `data/send_at` to the response with the `202` status
- **2026-09-26** `763d6b969cd7`: 1 info
  - added the optional property `error/provider_error` to the response with the `429` status

---

[Operation](https://skmtc.dev/nylas/apis/nylas-api/docs/v3/grants/:grant_id/messages/send/post.md) - [API](https://skmtc.dev/nylas/apis/nylas-api.md) - [Page](https://skmtc.dev/nylas/apis/nylas-api/changes/v3/grants/:grant_id/messages/send/post)