> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Lemlist: Post Campaigns Campaignid Leads Leadidoremail Interested

> Mark Lead as Interested in Campaign. Includes SDK V2 guidance, input constraints, response fields, and Deepline credit cost.

Mark Lead as Interested in Campaign.

<Info>
  Tool ID: `lemlist_post_campaigns_campaignid_leads_leadidoremail_interested`
</Info>

## Run this action

Use the TypeScript SDK for a single call. Put `ctx.tools.execute(...)` inside a Play when the call should be durable, scheduled, or run across a CSV.

```ts theme={null}
import { Deepline } from 'deepline';

const deepline = await Deepline.connect();
const result = await deepline.tools.execute(
  'lemlist_post_campaigns_campaignid_leads_leadidoremail_interested',
  {
    "campaignId": "campaign_123",
    "leadIdOrEmail": "jane.doe@example.com"
  },
);

console.log(result.toolResponse.raw);
```

### CLI

```bash theme={null}
deepline tools execute lemlist_post_campaigns_campaignid_leads_leadidoremail_interested --input '{
  "campaignId": "campaign_123",
  "leadIdOrEmail": "jane.doe@example.com"
}' --json
```

## Example response

The SDK exposes this shape at `result.toolResponse.raw`. Values below are representative.

```json theme={null}
{
  "data": {
    "firstName": "Jane",
    "lastName": "Doe",
    "companyName": "Example Corp"
  }
}
```

Use `deepline tools get lemlist_post_campaigns_campaignid_leads_leadidoremail_interested --json` for the latest machine-readable contract.

## Input reference

Mark Lead as Interested in Campaign

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `payload.campaignId` | `string` | Yes | — | The unique identifier of the campaign |
| `payload.leadIdOrEmail` | `string` | Yes | — | The unique identifier or email of the lead |

<details>
  <summary>Show raw input schema</summary>

  ### Input JSON Schema

  ```json theme={null}
  {
    "type": "object",
    "description": "Mark Lead as Interested in Campaign",
    "properties": {
      "campaignId": {
        "type": "string",
        "description": "The unique identifier of the campaign"
      },
      "leadIdOrEmail": {
        "type": "string",
        "description": "The unique identifier or email of the lead"
      }
    },
    "required": [
      "campaignId",
      "leadIdOrEmail"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Output reference

Standard tool result payload.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `result.data` | `object` | Yes | — | Provider response payload. |
| `result.data.firstName` | `string` | No | — | — |
| `result.data.lastName` | `string` | No | — | — |
| `result.data.companyName` | `string` | No | — | — |
| `result.data.jobTitle` | `string` | No | — | — |
| `result.data.companyDomain` | `string` | No | — | — |
| `result.data.email` | `string` | No | — | Format: `email`. |
| `result.data.preferredContactMethod` | `string` | No | — | — |
| `result.data.industry` | `string` | No | — | — |
| `result.data.Company name` | `string` | No | — | — |
| `result.data._id` | `string` | No | — | — |
| `result.data.isPaused` | `boolean` | No | — | — |
| `result.data.campaignId` | `string` | No | — | — |
| `result.data.contactId` | `string` | No | — | — |
| `result.data.emailStatus` | `string` | No | — | — |
| `result.meta` | `object` | No | — | Additional response metadata (status, paging). |

<details>
  <summary>Show raw output schema</summary>

  ### Output JSON Schema

  ```json theme={null}
  {
    "type": "object",
    "description": "Standard tool result payload.",
    "properties": {
      "data": {
        "type": "object",
        "description": "Provider response payload.",
        "properties": {
          "firstName": {
            "type": "string"
          },
          "lastName": {
            "type": "string"
          },
          "companyName": {
            "type": "string"
          },
          "jobTitle": {
            "type": "string"
          },
          "companyDomain": {
            "type": "string"
          },
          "email": {
            "type": "string",
            "format": "email"
          },
          "preferredContactMethod": {
            "type": "string"
          },
          "industry": {
            "type": "string"
          },
          "Company name": {
            "type": "string"
          },
          "_id": {
            "type": "string"
          },
          "isPaused": {
            "type": "boolean"
          },
          "campaignId": {
            "type": "string"
          },
          "contactId": {
            "type": "string"
          },
          "emailStatus": {
            "type": "string"
          }
        },
        "additionalProperties": {
          "type": "string"
        }
      },
      "meta": {
        "type": "object",
        "description": "Additional response metadata (status, paging).",
        "additionalProperties": true
      }
    },
    "required": [
      "data"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Deepline cost

* Pricing model: `fixed` (per call).
* Estimated Deepline credits: `0` per pricing unit.
* Provider-native pricing may still exist outside Deepline credit billing.

## Related documentation

* [Lemlist provider guide](/docs/providers/lemlist/guide)
* [SDK V2 quickstart](/docs/sdk-v2/quickstart)
* [SDK reference](/docs/sdk-v2/sdk-reference)
* [Run tools across a CSV](/docs/sdk-v2/batch-csv)


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