# Newsletter.sent

URL: /business/events/Newsletter.sent · Id: `event:Newsletter.sent`

> Emitted each time a Newsletter is sent.

[Newsletter.send](/business/nouns/newsletter/send) emits `Newsletter.sent` when it completes on a [Newsletter](/business/nouns/newsletter).

| Property | Value |
| --- | --- |
| Emitted by | [Newsletter.send](/business/nouns/newsletter/send) |
| Noun | [Newsletter](/business/nouns/newsletter) |
| Wakes | None. |

### Payload
Each delivery is an [Event](/business/nouns/event) record. `data` holds what [Newsletter.send](/business/nouns/newsletter/send) returns.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | Yes | `Newsletter.sent`. |
| `at` | `datetime` | Yes | When it happened. |
| `seq` | `integer` | No | Its position in the namespace, one more than the Event before; any seq is a cursor into the history. |
| `data` | `json` | Yes | The Thing as the Action left it. |
| `data.newsletter` | [Newsletter](/business/nouns/newsletter) | Yes | The Newsletter, with the issue in its archive. |
| `data.newsletter.name` | `string` | Yes | What subscribers see it called. |
| `data.newsletter.from` | [Mailbox](/business/nouns/mailbox) | Yes | The broadcast Mailbox each issue sends from. |
| `data.newsletter.topic` | `string` | No | The topic a Contact subscribes to, recorded with their Consent. |
| `data.newsletter.subscribers` | `integer` | No | Contacts subscribed now, counted from their Consent. |
| `data.newsletter.offer` | [Offer](/business/nouns/offer) | No | The Offer whose Subscription unlocks paid issues and the archive. |

### Example
```json
{
  "$id": "https://api.sb/leaseline.app/events/evt_txKCjohuKn",
  "$type": "Event",
  "name": "Newsletter.sent",
  "at": "2026-10-22T12:00:00Z",
  "data": {
    "newsletter": {
      "$id": "https://api.sb/leaseline.app/newsletters/newsletter_FLjN3aQujc",
      "$type": "Newsletter",
      "name": "Leaseline notes",
      "from": "mailbox_93HvOnR17L",
      "topic": "product-updates",
      "subscribers": 1,
      "offer": "offer_2hzYe1ERo0"
    }
  },
  "seq": 378
}
```