---
title: "Create big segment import"
method: POST
path: "/api/v2/segments/{projectKey}/{environmentKey}/{segmentKey}/imports"
tags: ["Segments"]
---

# Create big segment import

`POST /api/v2/segments/{projectKey}/{environmentKey}/{segmentKey}/imports`

Start a new import process for a big segment. This is an import for a list-based segment that can include more than 15,000 entries.

## Path parameters

- `projectKey` string, string, required — The project key
- `environmentKey` string, string, required — The environment key
- `segmentKey` string, string, required — The segment key

## Response `204`

Import request submitted successfully

## Other responses

- `400` — Invalid request
- `401` — Invalid access token
- `404` — Invalid resource identifier
- `409` — Conflicting process
- `429` — Rate limited

---

[API](https://skmtc.dev/launchdarkly/apis/launchdarkly-rest-api.md) · [All operations](https://skmtc.dev/launchdarkly/apis/launchdarkly-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/launchdarkly/launchdarkly-rest-api/revisions/69c5c9aafe78/schema)