---
title: "Changes to Send a message"
method: POST
path: "/v3/messages"
---

# Changes to Send a message

`POST /v3/messages`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 104 revisions.

- **2026-10-16** `6c829543a93e`: 5 breaking, 1 warning, 17 info
- **2026-06-29** `39acec16c055`: 3 breaking, 2 info

## Changes

- **2026-10-16** `6c829543a93e`: 5 breaking, 1 warning, 17 info
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedMutationRequestBase, subschema #2: SentDmServicesEndpointsCustomerAPIv3MessagesRequestsSendMessageV3Request_Properties` to the request body `allOf` list
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiMeta` to the `meta` response property `oneOf` list for the response status `202`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiMeta` to the `meta` response property `oneOf` list for the response status `400`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiMeta` to the `meta` response property `oneOf` list for the response status `404`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiMeta` to the `meta` response property `oneOf` list for the response status `500`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3RequestsMutationRequestBase, subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties` from the request body `allOf` list
  - the endpoint scheme security `BearerAuth` was added to the API
  - added the non-success response with the status `429`
  - removed the non-success response with the status `402`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3MessagesResponsesSendMessageResponse` to the `data` response property `allOf` list for the response status `202`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiError` to the `error` response property `allOf` list for the response status `202`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiError` to the `error` response property `allOf` list for the response status `400`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiError` to the `error` response property `allOf` list for the response status `404`
  - added `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3SharedApiError` to the `error` response property `allOf` list for the response status `500`
  - removed `#/components/schemas/SentDmServicesCommonServicesMessagingContractsSendMessageV3Response` from the `data` response property `allOf` list for the response status `202`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiError` from the `error` response property `allOf` list for the response status `202`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiError` from the `error` response property `allOf` list for the response status `400`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiError` from the `error` response property `allOf` list for the response status `404`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiError` from the `error` response property `allOf` list for the response status `500`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiMeta` from the `meta` response property `oneOf` list for the response status `202`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiMeta` from the `meta` response property `oneOf` list for the response status `400`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiMeta` from the `meta` response property `oneOf` list for the response status `404`
  - removed `#/components/schemas/SentDmServicesEndpointsCustomerAPIv3ResponsesApiMeta` from the `meta` response property `oneOf` list for the response status `500`
- **2026-06-29** `39acec16c055`: 3 breaking, 2 info
  - added `#/components/schemas/SentDmServicesCommonServicesTemplatesContractsTemplateV3Ref` to the `allOf[subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties]/template` request property `allOf` list
  - removed `#/components/schemas/SentDmServicesCommonServicesTemplatesContractsTemplateV3Ref` from the `allOf[subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties]/template` request property `oneOf` list
  - the `allOf[subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties]/template` request property type changed from no type to `object`
  - added the new optional request property `allOf[subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties]/text`
  - the request property `allOf[subschema #2: SentDmServicesEndpointsCustomerAPIv3RequestsSendMessageV3Request_Properties]/template` became nullable

---

[Operation](https://skmtc.dev/sentdm/apis/sent-dm-api-v3/docs/v3/messages/post.md) - [API](https://skmtc.dev/sentdm/apis/sent-dm-api-v3.md) - [Page](https://skmtc.dev/sentdm/apis/sent-dm-api-v3/changes/v3/messages/post)