---
title: "Changes to Send a message using an alphanumeric sender ID"
method: POST
path: "/messages/alphanumeric_sender_id"
---

# Changes to Send a message using an alphanumeric sender ID

`POST /messages/alphanumeric_sender_id`

> Every recorded change to this endpoint, newest first.
> 99 revisions in range; 1 not diffed.

## Timeline

Changed in 1 of 99 revisions.

- **2026-09-21** `d18924181c6e` — 2 warning, 3 info

## Changes

- **2026-09-21** `d18924181c6e` — 2 warning, 3 info
  - added the new `RCS` enum value to the `data/type` response property for the response status `200`
  - added the new `read` enum value to the `data/to/items/status` response property for the response status `200`
  - added the optional property `data/body` to the response with the `200` status
  - added the optional property `data/from/agent_id` to the response with the `200` status
  - added the optional property `data/from/agent_name` to the response with the `200` status

---

[Operation](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/docs/messages/alphanumeric_sender_id/post.md) · [API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) · [Page](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/messages/alphanumeric_sender_id/post)