> ## 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: Add Sequence Step

> Add an email, LinkedIn or other step to a Lemlist campaign sequence, with its delay, subject and message. Includes SDK V2 examples, schemas, and cost.

Add an email, LinkedIn or other step to a Lemlist campaign sequence, with its delay, subject and message.

> [!NOTE]
>
> Tool ID: `lemlist_add_sequence_step`

## Run this action

Use the TypeScript SDK for one call. Use `ctx.tools.execute(...)` inside a Play for durable calls, scheduled calls, or CSV processing.

```ts theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
import { Deepline } from 'deepline';

const deepline = await Deepline.connect();
const result = await deepline.tools.execute(
  'lemlist_add_sequence_step',
  {
    "sequence_id": "sequence_123",
    "type": "email"
  },
);

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

### CLI

```bash theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
deepline tools execute lemlist_add_sequence_step --input '{
  "sequence_id": "sequence_123",
  "type": "email"
}' --json
```

## Example response

The static output schema lacks the details for a reliable example. Use `deepline describe lemlist_add_sequence_step --json` for the complete live contract.

## Input reference

Add a step to a Lemlist sequence.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `payload.sequence_id` | `string` | Yes | — | Sequence ID (e.g. seq\_abc123) Minimum length: 1. |
| `payload.type` | `"email" \| "linkedinInvite" \| "linkedinSend" \| "linkedinVisit" \| "manual" \| "phone" \| "api" \| "whatsappMessage" \| "conditional" \| "sendToAnotherCampaign"` | Yes | — | Step type. email/linkedinSend/linkedinInvite require message. email also requires subject. conditional requires conditionKey + delayType. Allowed: `email`, `linkedinInvite`, `linkedinSend`, `linkedinVisit`, `manual`, `phone`, `api`, `whatsappMessage`, `conditional`, `sendToAnotherCampaign`. |
| `payload.delay` | `integer` | No | — | Delay before this step executes, in DAYS (never seconds or hours). Non-conditional steps: 0 = immediate, max 90. Conditional steps with delayType "within": number of days to wait for the condition, max 1500. Passing a seconds value (e.g. 259200) will exceed Lemlist's 1500-day limit. Minimum: 0. |
| `payload.delayType` | `"waitUntil" \| "within"` | No | — | Delay type for conditional steps. "waitUntil" pauses until the condition is met. "within" waits up to `delay` DAYS (not seconds) for the condition. Allowed: `waitUntil`, `within`. |
| `payload.subject` | `string` | No | — | Email subject line. Required for email steps. |
| `payload.message` | `string` | No | — | Message content (HTML for email, plain text for LinkedIn). Required for email, linkedinSend, and linkedinInvite steps. |
| `payload.index` | `integer` | No | — | Position in sequence (-1 or higher) Minimum: -1. |
| `payload.conditionKey` | `string` | No | — | Condition key for conditional steps (e.g. linkedinInviteAccepted, emailsOpened, emailsClicked). Required for conditional steps. |
| `payload.conditions` | `array` | No | — | Conditions array - only present in responses. Lemlist auto-generates condition branches. do not send in requests. |

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

  ### Input JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "description": "Add a step to a Lemlist sequence.",
    "properties": {
      "sequence_id": {
        "type": "string",
        "description": "Sequence ID (e.g. seq_abc123)",
        "minLength": 1
      },
      "type": {
        "type": "string",
        "description": "Step type. email/linkedinSend/linkedinInvite require message; email also requires subject; conditional requires conditionKey + delayType.",
        "enum": [
          "email",
          "linkedinInvite",
          "linkedinSend",
          "linkedinVisit",
          "manual",
          "phone",
          "api",
          "whatsappMessage",
          "conditional",
          "sendToAnotherCampaign"
        ]
      },
      "delay": {
        "type": "integer",
        "description": "Delay before this step executes, in DAYS (never seconds or hours). Non-conditional steps: 0 = immediate, max 90. Conditional steps with delayType \"within\": number of days to wait for the condition, max 1500. Passing a seconds value (e.g. 259200) will exceed Lemlist's 1500-day limit.",
        "minimum": 0
      },
      "delayType": {
        "type": "string",
        "description": "Delay type for conditional steps. \"waitUntil\" pauses until the condition is met. \"within\" waits up to `delay` DAYS (not seconds) for the condition.",
        "enum": [
          "waitUntil",
          "within"
        ]
      },
      "subject": {
        "type": "string",
        "description": "Email subject line. Required for email steps.",
        "allowsTemplatePlaceholders": true
      },
      "message": {
        "type": "string",
        "description": "Message content (HTML for email, plain text for LinkedIn). Required for email, linkedinSend, and linkedinInvite steps.",
        "allowsTemplatePlaceholders": true
      },
      "index": {
        "type": "integer",
        "description": "Position in sequence (-1 or higher)",
        "minimum": -1
      },
      "conditionKey": {
        "type": "string",
        "description": "Condition key for conditional steps (e.g. linkedinInviteAccepted, emailsOpened, emailsClicked). Required for conditional steps."
      },
      "conditions": {
        "type": "array",
        "description": "Conditions array - only present in responses. Lemlist auto-generates condition branches; do not send in requests.",
        "items": {
          "type": "object",
          "properties": {
            "key": {
              "type": "string",
              "description": "Condition key"
            },
            "label": {
              "type": "string",
              "description": "Display label"
            },
            "delay": {
              "type": "number",
              "description": "Delay for this condition branch"
            },
            "delayType": {
              "type": "string",
              "description": "Wait type",
              "enum": [
                "waitUntil",
                "within"
              ]
            },
            "sequenceId": {
              "type": "string",
              "description": "Sequence ID for this branch"
            },
            "fallback": {
              "type": "boolean",
              "description": "True if fallback/else branch"
            }
          },
          "additionalProperties": false
        }
      }
    },
    "required": [
      "sequence_id",
      "type"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Output reference

Standard tool result payload.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `result.data` | `unknown` | Yes | — | Provider response payload. |
| `result.meta` | `object` | No | — | Additional response metadata (status, paging). |

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

  ### Output JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "description": "Standard tool result payload.",
    "properties": {
      "data": {
        "description": "Provider response payload."
      },
      "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](https://deepline.com/docs/providers/lemlist/guide.md)
* [SDK V2 quickstart](https://deepline.com/docs/sdk-v2/quickstart.md)
* [SDK reference](https://deepline.com/docs/sdk-v2/sdk-reference.md)
* [Run tools across a CSV](https://deepline.com/docs/sdk-v2/batch-csv.md)


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