---
title: "Get username case-sensitivity conflicts"
method: GET
path: "/api/sign-in-exp/username-policy/case-sensitivity-conflicts"
tags: ["Sign-in experience"]
---

# Get username case-sensitivity conflicts

`GET /api/sign-in-exp/username-policy/case-sensitivity-conflicts`

List groups of usernames that collide when compared case-insensitively (i.e. usernames that would clash if the tenant switched to a case-insensitive username policy), with the total group count and a capped sample. Useful for surfacing conflicts before disabling case sensitivity.

## Query parameters

- `limit` number, required

## Response `200`

The total number of case-insensitive username collision groups and a sample of them.

- object
  - `totalConflicts` number, required
  - `samples` object[], required
    - `usernameLower` string, required
    - `userIds` string[], required

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden

---

[API](https://skmtc.net/logto/apis/logto-api-references.md) · [All operations](https://skmtc.net/logto/apis/logto-api-references/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/logto/logto-api-references/revisions/0287c6a59eba/schema)