# POST /api/v1/notifications/{notification_id}/seen

> Mark notification as seen

- **Tag:** notifications
- **Operation ID:** `mark_seen_api_v1_notifications__notification_id__seen_post`

## Description

Manually mark a notification as seen

## Authentication

Bearer token in `Authorization` header.
Required header: `x-business-id: <business uuid>`.

## Parameters

- `notification_id` (path, string, required)

## Responses

### 201 — Successful Response

Schema: `NotificationResponse`

- `id` (string · required)
- `recipient_kind` (RecipientKindEnum · required) → `RecipientKindEnum`
- `recipient_id` (string · required)
- `scope_business_id` (string)
- `scope_firm_id` (string)
- `source` (NotificationSourceEnum · required) → `NotificationSourceEnum`
- `topic` (NotificationTopicEnum · required) → `NotificationTopicEnum`
- `severity` (NotificationSeverityEnum · required) → `NotificationSeverityEnum`
- `status` (NotificationStatusEnum · required) → `NotificationStatusEnum`
- `snoozed_until` (string · date-time)
- `pinned` (boolean)
- `title` (string · required)
- `body` (string)
- `action_label` (string)
- `action_url` (string)
- `has_action` (boolean)
- `attachments` (array · object)
- `entity_type` (string)
- `entity_id` (string)
- `channels` (object)
- `is_virtual` (boolean)
- `expires_at` (string · date-time)
- `metadata` (object)
- `created_at` (string · date-time · required)
- `updated_at` (string · date-time · required)
- `status_changed_at` (string · date-time · required)

### 400 — Bad Request - Invalid input

### 401 — Unauthorized - Authentication required

### 403 — Forbidden - Insufficient permissions

### 404 — Not Found - Resource does not exist

### 422 — Validation Error

Schema: `HTTPValidationError`

- `detail` (array · ValidationError) → `ValidationError`
  - `loc` (array · string | integer · required)
  - `msg` (string · required)
  - `type` (string · required)
  - `input` (object)
  - `ctx` (object)

## Code samples

### cURL

```bash
curl -X POST 'https://api.ondayzero.com/api/v1/notifications/{notification_id}/seen' \
  -H 'Authorization: Bearer dz_your_token' \
  -H 'x-business-id: YOUR_BUSINESS_ID'
```

### JavaScript

```javascript
const response = await fetch('https://api.ondayzero.com/api/v1/notifications/{notification_id}/seen', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer dz_your_token',
    'x-business-id': 'YOUR_BUSINESS_ID',
  },
});
const data = await response.json();
```

### Python

```python
import httpx

headers = {
    "Authorization": "Bearer dz_your_token",
    "x-business-id": "YOUR_BUSINESS_ID",
}

response = httpx.post("https://api.ondayzero.com/api/v1/notifications/{notification_id}/seen", headers=headers)
data = response.json()
```

## See also

- HTML version: https://www.ondayzero.com/docs/reference/notifications/mark-seen
- OpenAPI slice: https://www.ondayzero.com/docs/reference/notifications/mark-seen/openapi.json
- Other endpoints in **notifications**: https://www.ondayzero.com/docs/reference/notifications