---
title: "Check-in registered guests to classes"
method: PUT
path: "/classes/{class_id}/registrations/{registration_id}/sign_in"
---

# Check-in registered guests to classes

`PUT /classes/{class_id}/registrations/{registration_id}/sign_in`

## Request

- Base URL: `https://api.zenoti.com`
- URL: `https://api.zenoti.com/classes/{class_id}/registrations/{registration_id}/sign_in`
- Auth: none required
- TypeScript: <https://skmtc.dev/zenoti/apis/zenoti-authentication/docs/classes/:class_id/registrations/:registration_id/sign_in/put.ts> (a function with typed inputs; its response is checked against the schema)

Use this API to check-in registered guests to the classes.

You must specify class_id and registration_id to check-in the guest to the class.

## Path parameters

- `class_id` integer, required
- `registration_id` integer, required

## Response `200`

200

- object
  - `error` unknown

## Other responses

- `400`: 400

---

[API](https://skmtc.dev/zenoti/apis/zenoti-authentication.md) - [All operations](https://skmtc.dev/zenoti/apis/zenoti-authentication/llms.txt) - [OpenAPI document](https://skmtc.dev/zenoti/apis/zenoti-authentication/revisions/e628f892391a?raw)