---
title: "Changes to Send a single send transactional email asynchronously."
method: POST
path: "/marketing/transactional/2026-03/single-email/send"
---

# Changes to Send a single send transactional email asynchronously.

`POST /marketing/transactional/2026-03/single-email/send`

> Every recorded change to this operation, newest first.
> 14 revisions in range; 1 not diffed, 2 could not be searched.

## Timeline

Changed in 3 of 14 revisions.

- **2026-05-07** `24a387456830`: 1 warning
- **2026-04-08** `b0d8bc008db9`: 1 info
- **2026-03-25** `62586336cea2`: 1 info

## Changes

- **2026-05-07** `24a387456830`: 1 warning
  - added the new `CONTACT_VIEW_PERMISSION` enum value to the `sendResult` response property for the response status `200`
- **2026-04-08** `b0d8bc008db9`: 1 info
  - api operation id `post-/marketing/transactional/2026-03/single-email/send_sendEmail` removed and replaced with `post-/marketing/transactional/2026-03/single-email/send`
- **2026-03-25** `62586336cea2`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/hubspot/apis/hubspot-api-specification/docs/marketing/transactional/2026-03/single-email/send/post.md) - [API](https://skmtc.dev/hubspot/apis/hubspot-api-specification.md) - [Page](https://skmtc.dev/hubspot/apis/hubspot-api-specification/changes/marketing/transactional/2026-03/single-email/send/post)