---
title: "Delete subscriber by external ID"
method: DELETE
path: "/subscribers/external"
tags: ["Subscribers"]
---

# Delete subscriber by external ID

`DELETE /subscribers/external`

Deletes a subscriber by their customer-owned external ID.

## Query parameters

- `externalId` string, required

## Response `200`

Subscriber deleted

- object
  - `success` boolean
  - `deleted` boolean

## Other responses

- `400` — Missing external ID
- `401` — Unauthorized
- `404` — Subscriber not found

## Changes

- **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
- **2026-08-02** `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`
- **2026-06-29** `34f108902017` — 1 info
  - added the non-success response with the status `401`
- **2026-05-05** `5449b620579f` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/subscribers/external/delete.md)

---

[API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) · [All operations](https://skmtc.dev/sequenzy/apis/sequenzy-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sequenzy/sequenzy-api/revisions/6fd2903b91ce/schema)