# Waitlist.joined

URL: /business/events/Waitlist.joined · Id: `event:Waitlist.joined`

> Emitted each time a Waitlist is joined.

[Waitlist.join](/business/nouns/waitlist/join) emits `Waitlist.joined` when it completes on a [Waitlist](/business/nouns/waitlist).

| Property | Value |
| --- | --- |
| Emitted by | [Waitlist.join](/business/nouns/waitlist/join) |
| Noun | [Waitlist](/business/nouns/waitlist) |
| Wakes | None. |

### Payload
Each delivery is an [Event](/business/nouns/event) record. `data` holds what [Waitlist.join](/business/nouns/waitlist/join) returns.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | Yes | `Waitlist.joined`. |
| `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.lead` | [Lead](/business/nouns/lead) | Yes | The waiting Lead. |
| `data.waitlist` | [Waitlist](/business/nouns/waitlist) | Yes | The Waitlist joined. |
| `data.waitlist.invited` | `integer` | No | How many Leads have been invited. |
| `data.waitlist.rank` | `string` | No | The invite order: first come, best ICP fit, or most referrals first. |

### Example
```json
{
  "$id": "https://api.sb/patentpad.com/events/event_1",
  "$type": "Event",
  "name": "Waitlist.joined",
  "at": "2026-10-22T12:00:00Z",
  "data": {
    "lead": {
      "$id": "https://api.sb/patentpad.com/leads/lead_1",
      "$type": "Lead",
      "status": "new"
    },
    "waitlist": {
      "$id": "https://api.sb/patentpad.com/waitlists/waitlist_1",
      "$type": "Waitlist",
      "invited": 1,
      "rank": "signup"
    }
  },
  "seq": 1
}
```