---
title: "Changes to Get subscriber by external ID"
method: GET
path: "/subscribers/external"
---

# Changes to Get subscriber by external ID

`GET /subscribers/external`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 13 of 149 revisions.

- **2026-10-16** `db3873ca3d4d`: 4 info
- **2026-09-08** `f1d8cfd9faaf`: 1 warning, 3 info
- **2026-08-19** `ba3a29c6eb33`: 4 info
- **2026-08-18** `8fbabe82a04d`: 2 info
- **2026-08-16** `6fd2903b91ce`: 3 info
- **2026-08-10** `16ad4f8e3d97`: 1 info
- **2026-08-04** `aa6181241c7f`: 3 info
- **2026-08-02** `36f92fc0caa2`: 3 breaking
- **2026-07-31** `6a6a58564a5e`: 1 breaking
- **2026-07-10** `1b0d5fa83cd8`: 2 info
- **2026-06-29** `34f108902017`: 2 info
- **2026-06-19** `fd494fa7e64d`: 4 info
- **2026-05-05** `5449b620579f`: 1 info

## Changes

- **2026-10-16** `db3873ca3d4d`: 4 info
  - 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 `503` status
- **2026-09-08** `f1d8cfd9faaf`: 1 warning, 3 info
  - added the new `undefined` enum value to the `subscriber/allOf[subschema #2]/activity/items/engagementQuality` response property for the response status `200`
  - added the optional property `subscriber/allOf[#/components/schemas/Subscriber]/phoneCountry` to the response with the `200` status
  - removed `#/components/schemas/SubscriberEmailStats` from the `subscriber/allOf[subschema #2]/emailStats` response property `allOf` list for the response status `200`
  - added `subschema #1, subschema #2` to the `subscriber/allOf[subschema #2]/emailStats` response property `anyOf` list for the response status `200`
- **2026-08-19** `ba3a29c6eb33`: 4 info
  - 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 `503` status
- **2026-08-18** `8fbabe82a04d`: 2 info
  - added the non-success response with the status `503`
  - added the optional property `subscriber/allOf[#/components/schemas/Subscriber]/timezone` to the response with the `200` status
- **2026-08-16** `6fd2903b91ce`: 3 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
- **2026-08-10** `16ad4f8e3d97`: 1 info
  - added the optional property `subscriber/allOf[#/components/schemas/Subscriber]/unsubscribedAt` to the response with the `200` status
- **2026-08-04** `aa6181241c7f`: 3 info
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/smsErrorCode` to the response with the `200` status
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/smsSegments` to the response with the `200` status
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/smsSendId` to the response with the `200` status
- **2026-08-02** `36f92fc0caa2`: 3 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`
- **2026-07-31** `6a6a58564a5e`: 1 breaking
  - the response property `subscriber/allOf[#/components/schemas/Subscriber]/email` became nullable for the status `200`
- **2026-07-10** `1b0d5fa83cd8`: 2 info
  - added the optional property `subscriber/allOf[#/components/schemas/Subscriber]/phone` to the response with the `200` status
  - added the optional property `subscriber/allOf[#/components/schemas/Subscriber]/smsStatus` to the response with the `200` status
- **2026-06-29** `34f108902017`: 2 info
  - added the non-success response with the status `401`
  - added the optional property `subscriber/allOf[subschema #2]/notes` to the response with the `200` status
- **2026-06-19** `fd494fa7e64d`: 4 info
  - added the new optional `query` request parameter `includeMachineEngagement`
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/classificationReasons` to the response with the `200` status
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/engagementQuality` to the response with the `200` status
  - added the optional property `subscriber/allOf[subschema #2]/activity/items/machine` to the response with the `200` status
- **2026-05-05** `5449b620579f`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/sequenzy/apis/sequenzy-api/docs/subscribers/external/get.md) - [API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) - [Page](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/subscribers/external/get)