# Prospect methods: engage

URL: /code/sdk/prospect/verbs · Id: `page:code/sdk/prospect/verbs`

> The Prospect Verbs engage as typed SDK methods, with inputs, result, refusals and an example.

Reference for [Prospect](/business/nouns/prospect), one group of [Prospect methods](/code/sdk/prospect).

### Prospect.engage
Engage records a Prospect’s first reply or raised hand and makes it a Lead that keeps its Acquisition. [Verb page](/business/nouns/prospect/engage?interface=sdk).

```ts
interface ProspectVerbs {
  engage(input: ProspectEngageInput, options?: SB.CallOptions): SB.Call<ProspectEngageOutput>
}
```

Emits [`Prospect.engaged`](/business/events/Prospect.engaged).

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `prospect` | [Prospect](/business/nouns/prospect) | Yes | The Prospect that replied or raised a hand. |
| `message` | [Message](/business/nouns/message) | No | The reply or Form submission that shows the engagement. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `lead` | [Lead](/business/nouns/lead) | Yes | The new Lead, with status `new` and the Prospect’s Acquisition. |
| `prospect` | [Prospect](/business/nouns/prospect) | Yes | The Prospect who engaged. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```ts
import { $ } from 'startup-builder'

const { lead, prospect } = await $.Prospect.engage({ prospect: 'prospect_S8bqJCxC9R' })
```