--- title: "Changes to Send transactional or marketing email" method: POST path: "/transactional/send" --- # Changes to Send transactional or marketing email `POST /transactional/send` > Every recorded change to this operation, newest first. ## Timeline Changed in 15 of 150 revisions. - **2026-10-16** `db3873ca3d4d`: 12 info - **2026-09-08** `f1d8cfd9faaf`: 1 breaking, 9 info - **2026-08-19** `ba3a29c6eb33`: 10 info - **2026-08-16** `6fd2903b91ce`: 4 info - **2026-08-13** `fc5624c7d57a`: 1 info - **2026-08-02** `36f92fc0caa2`: 4 breaking - **2026-07-28** `4d1e8971ce8a`: 1 info - **2026-07-22** `06219e920c39`: 2 info - **2026-07-20** `f2220557701a`: 1 info - **2026-07-16** `d7ea66dede72`: 6 info - **2026-06-26** `b6ed7c5f90bc`: 2 info - **2026-06-12** `f9a826460811`: 1 warning - **2026-05-20** `1139fdf1ac6b`: 2 info - **2026-05-13** `9a89cb9ec599`: 6 warning - **2026-05-05** `5449b620579f`: 1 info ## Changes - **2026-10-16** `db3873ca3d4d`: 12 info - added the new optional request property `headers` - added the new optional request property `trackAs` - added the optional property `anyOf[subschema #1: Slug-based response]/ignoredHeaders` to the response with the `200` status - added the optional property `anyOf[subschema #2: Direct content response]/ignoredHeaders` to the response with the `200` status - added the optional property `anyOf[subschema #2: Direct content response]/transactional` to the response with the `200` status - added the optional property `issues` to the response with the `400` status - added the optional property `issues` to the response with the `401` status - added the optional property `issues` to the response with the `404` status - added the optional property `issues` to the response with the `409` status - added the optional property `issues` to the response with the `429` status - added the optional property `issues` to the response with the `500` status - added the optional property `issues` to the response with the `503` status - **2026-09-08** `f1d8cfd9faaf`: 1 breaking, 9 info - the `to/oneOf[subschema #2]/` request property's minItems was increased to `1` - added the new optional request property `fromEmail` - added the new optional request property `fromName` - added the new optional request property `replyProfileId` - added the new optional request property `replyToName` - added the new optional request property `senderProfileId` - the `clickTracking` request property default value `true` was removed - the `openTracking` request property default value `true` was removed - added `subschema #1: Slug-based response, subschema #2: Direct content response` to the response body `anyOf` list for the response status `200` - removed `subschema #1: Slug-based response, subschema #2: Direct content response` from the response body `oneOf` list for the response status `200` - **2026-08-19** `ba3a29c6eb33`: 10 info - added the new optional `header` request parameter `Idempotency-Key` - added the non-success response with the status `409` - added the non-success response with the status `429` - added the non-success response with the status `503` - added the optional property `oneOf[subschema #1: Slug-based response]/idempotentReplay` to the response with the `200` status - added the optional property `oneOf[subschema #2: Direct content response]/idempotentReplay` to the response with the `200` status - added the optional property `retryable` to the response with the `400` status - added the optional property `retryable` to the response with the `401` status - added the optional property `retryable` to the response with the `404` status - added the optional property `retryable` to the response with the `500` status - **2026-08-16** `6fd2903b91ce`: 4 info - added the optional property `code` to the response with the `400` status - added the optional property `code` to the response with the `401` status - added the optional property `code` to the response with the `404` status - added the optional property `code` to the response with the `500` status - **2026-08-13** `fc5624c7d57a`: 1 info - added the new optional request property `attachments/items/contentId` - **2026-08-02** `36f92fc0caa2`: 4 breaking - the response property `success` became optional for the status `400` - the response property `success` became optional for the status `401` - the response property `success` became optional for the status `404` - the response property `success` became optional for the status `500` - **2026-07-28** `4d1e8971ce8a`: 1 info - added the new optional request property `trackingSettings` - **2026-07-22** `06219e920c39`: 2 info - added the optional property `oneOf[subschema #1: Slug-based response]/emailType` to the response with the `200` status - added the optional property `oneOf[subschema #2: Direct content response]/emailType` to the response with the `200` status - **2026-07-20** `f2220557701a`: 1 info - added the new optional request property `emailType` - **2026-07-16** `d7ea66dede72`: 6 info - added the new optional request property `html` - added the new optional request property `templateId` - added the optional property `oneOf[subschema #1: Slug-based response]/emailSendId` to the response with the `200` status - added the optional property `oneOf[subschema #2: Direct content response]/emailSendId` to the response with the `200` status - response property `oneOf[subschema #1: Slug-based response]/jobId` deprecated - response property `oneOf[subschema #2: Direct content response]/jobId` deprecated - **2026-06-26** `b6ed7c5f90bc`: 2 info - added the optional property `oneOf[subschema #1: Slug-based response]/diagnostics` to the response with the `200` status - added the optional property `oneOf[subschema #2: Direct content response]/diagnostics` to the response with the `200` status - **2026-06-12** `f9a826460811`: 1 warning - the `subscriberExternalId` request property's maxLength was set to `255` - **2026-05-20** `1139fdf1ac6b`: 2 info - added the new optional request property `bcc` - added the new optional request property `cc` - **2026-05-13** `9a89cb9ec599`: 6 warning - removed the request property `bcc` - removed the request property `cc` - removed the optional property `oneOf[subschema #1: Slug-based response]/bcc` from the response with the `200` status - removed the optional property `oneOf[subschema #1: Slug-based response]/cc` from the response with the `200` status - removed the optional property `oneOf[subschema #2: Direct content response]/bcc` from the response with the `200` status - removed the optional property `oneOf[subschema #2: Direct content response]/cc` from the response with the `200` status - **2026-05-05** `5449b620579f`: 1 info - added the new optional request property `subscriberExternalId` --- [Operation](https://skmtc.dev/sequenzy/apis/sequenzy-api/docs/transactional/send/post.md) - [API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) - [Page](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/transactional/send/post)