# Create Subitem — monday

> Create a subitem nested under an existing item. Use when the row belongs to a parent item; use Create Item for a top-level row. Set Board ID (the parent item's board), Parent Item ID and Item Name. Gotcha: subitems live on a separate…

- Key: `monday-create-subitem`
- Type: Action (Write)
- Version: 0.1.9
- App: monday (`monday`) — https://pipedream.com/apps/monday.md
- This page (HTML): https://pipedream.com/apps/monday/actions/create-subitem
- Hints: open-world
- Source: https://github.com/PipedreamHQ/pipedream/blob/master/components/monday/actions/create-subitem/create-subitem.mjs

## Description

Create a subitem nested under an existing item. Use when the row belongs to a parent item; use **Create Item** for a top-level row. Set `Board ID` (the parent item's board), `Parent Item ID` and `Item Name`. Gotcha: subitems live on a separate subitems board, so `Column Values` must use that board's column IDs — run **List Columns** against the subitems board, not the board selected here. Example: Item Name `Draft copy`, Column Values `{ "status": "Done" }`. Returns the new subitem's ID as a string. [See the documentation](https://developer.monday.com/api-reference/reference/subitems#create-a-subitem)

## Props

| Prop | Type | Required | Description |
|---|---|---|---|
| `boardId` | `string` | Yes | The board to act on, as a board ID (e.g. 2419687965). Use List Board ID Options to look up a board ID by name. Options are loaded from the connected account. |
| `parentItemId` | `string` | Yes | Select a parent item or provide an item ID Options are loaded from the connected account. |
| `itemName` | `string` | Yes | The new subitem's name |
| `columnValues` | `object` | No | The subitem column values to set, as column ID → value pairs. Example: { "status": "Done", "date4": "2026-09-02" }. These are the columns of the parent item's subitems board, which is a separate board from the one selected above — run List Columns against that subitems board to discover its column IDs. See the Column types reference for the value each column type expects |

## Run it

**MCP**

```ts
import { Client } from "@modelcontextprotocol/sdk/client/index.js"
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js"
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const accessToken = await pd.rawAccessToken

const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": process.env.PIPEDREAM_PROJECT_ID!,
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "monday",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
  name: "monday-create-subitem",
  arguments: {
    boardId: "Board ID",
    parentItemId: "Item ID",
  },
})
```

**TypeScript**

```ts
import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const result = await pd.actions.run({
  id: "monday-create-subitem",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    monday: { authProvisionId: "apn_xxxxxxx" },
    boardId: "Board ID",
    parentItemId: "Item ID",
  },
})

console.log(result)
```

**cURL**

```bash
curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
  -H "Content-Type: application/json" \
  -H "X-PD-Environment: production" \
  -H "Authorization: Bearer {access_token}" \
  -d '{
    "external_user_id": "{external_user_id}",
    "id": "monday-create-subitem",
    "configured_props": {
      "monday": { "authProvisionId": "apn_xxxxxxx" },
      "boardId": "Board ID",
      "parentItemId": "Item ID"
    }
  }'
```

---

- App: https://pipedream.com/apps/monday.md · All apps: https://pipedream.com/apps