---
title: "Cancel an existing appointment using its unique identifier"
method: PATCH
path: "/v3/diary/{shortName}/appointment/{appointmentID}/cancel"
tags: ["DiaryController"]
---

# Cancel an existing appointment using its unique identifier

`PATCH /v3/diary/{shortName}/appointment/{appointmentID}/cancel`

## Path parameters

- `shortName` string, required
- `appointmentID` string, required

## Response `200`

OK

- string

---

[API](https://skmtc.net/letmc/apis/agentos-api-v3-diary-call-group.md) · [All operations](https://skmtc.net/letmc/apis/agentos-api-v3-diary-call-group/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/letmc/agentos-api-v3-diary-call-group/revisions/9e518bf9a2f6/schema)