# POST /sending/identities/{identityId}/default

Part of the SendHeron REST API. Base URL: `https://api.sendheron.com/api/v1`

Make this the workspace default sender.

```http
POST https://api.sendheron.com/api/v1/sending/identities/{identityId}/default
Authorization: Bearer <YOUR_API_KEY>
```

**Required scopes:** `sending:write`

**Success status:** `201`

**Rate limit:** 100/min per key, counted against the organization's WRITE ceiling (400/min).

**Path parameters**

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `identityId` | uuid | yes | Sender identity UUID. |

> The default is what every send that names no sender of its own uses, sequences and campaigns included. Exactly one identity per workspace is the default.


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Rate limits: 100/min per key, counted against the organization's WRITE ceiling (400/min). Both windows are one minute; there is no hourly or daily quota.