---
title: "mark chat messages as seen (blue ticks)"
method: POST
path: "/instances/{id}/client/action/send-seen"
tags: ["chat"]
---

# mark chat messages as seen (blue ticks)

`POST /instances/{id}/client/action/send-seen`

Mark all messages in a chat as seen (read). This will show blue ticks (double check marks) to the sender only if both parties have read receipts enabled in their privacy settings. If read receipts are disabled by either party, the messages will be marked as delivered (gray ticks) instead.

## Path parameters

- `id` integer, required

## Request body

- object
  - `chatId` string, required — Chat ID <countrycode_short><usernumber>@c.us or @g.us for groups

## Response `200`

Successfully marked chat messages as seen

- object
  - `data` object
    - `seenSend` boolean — Indicates if the seen status was successfully sent
  - `links` object
    - `self` string
  - `status` 'success' | 'error'

## Other responses

- `401` — Unauthorized — invalid or missing bearer token
- `403` — Forbidden — insufficient permissions or account blocked
- `404` — Not found — instance does not exist or does not belong to you
- `409` — Conflict — instance is not ready
- `422` — Validation error — invalid or missing request parameters
- `429` — Too many requests — rate limit exceeded

---

[API](https://skmtc.net/waapi/apis/waapi-api.md) · [All operations](https://skmtc.net/waapi/apis/waapi-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/waapi/waapi-api/versions/1e2cc7c12090/schema)