---
title: "Post an exact Kevin-approved support ticket reply"
method: POST
path: "/support/tickets/{ref}/reply"
---

# Post an exact Kevin-approved support ticket reply

`POST /support/tickets/{ref}/reply`

## Request

- Base URL: `https://sendinel.ai/api/v1`
- URL: `https://sendinel.ai/api/v1/support/tickets/{ref}/reply`
- Auth: one of:
  - HTTP bearer
  - OAuth 2 (authorization code, authorization URL `https://sendinel.ai/oauth/authorize`, token URL `https://sendinel.ai/oauth/token`)

Platform-admin principal and admin scope only. The SHA-256 hash must match the exact body. An audit row is written before the comment; a failed insert gets a failure audit. No email or automatic status change. Resolved or closed tickets require explicit reopen.

## Path parameters

- `ref` string, required

## Request body

- object
  - `body` string, required
  - `approval_ref` string, required
  - `body_sha256` string, required
  - `reopen` boolean

## Response `201`

Comment posted

## Other responses

- `403`: Not available to tenant principals
- `409`: Resolved or closed ticket requires reopen
- `422`: Missing input or exact-text hash mismatch
- `429`: Organization hourly reply limit exceeded
- `503`: Audit write failed; no comment was posted

---

[API](https://skmtc.dev/sendinel/apis/sendinel-api.md) · [All operations](https://skmtc.dev/sendinel/apis/sendinel-api/llms.txt) · [OpenAPI document](https://skmtc.dev/sendinel/apis/sendinel-api/revisions/01f916b0c916?raw)