> ## 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.

# Resend: Templates Update

> Update an existing template. Includes SDK V2 and CLI requests, input constraints, response fields, and Deepline credit cost.

Update an existing template.

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

## 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(
  'resend_templates_update',
  {
    "id": "id_123"
  },
);

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

### CLI

```bash theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
deepline run resend_templates_update --input '{
  "id": "id_123"
}'
```

## Example response

The SDK returns this shape at `result.toolResponse.raw`. The example values illustrate the response.

```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
{
  "data": {
    "id": "id_123",
    "object": "example"
  }
}
```

Use `deepline describe resend_templates_update --json` for the latest machine-readable contract.

## Input reference

Update an existing template

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `payload.id` | `string` | Yes | — | The Template ID or alias. |
| `payload.name` | `string` | No | — | The name of the template. |
| `payload.alias` | `string` | No | — | The alias of the template. |
| `payload.from` | `string` | No | — | Sender email address. To include a friendly name, use the format "Your Name ". |
| `payload.subject` | `string` | No | — | Email subject. |
| `payload.reply_to` | `array` | No | — | Reply-to email addresses. |
| `payload.html` | `string` | No | — | The HTML version of the template. |
| `payload.text` | `string` | No | — | The plain text version of the template. |
| `payload.variables` | `array` | No | — | — |

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

  ### Input JSON Schema

  ```json theme={"languages":{"custom":["/languages/deepline-prompt.json"]}}
  {
    "type": "object",
    "description": "Update an existing template",
    "properties": {
      "id": {
        "type": "string",
        "description": "The Template ID or alias."
      },
      "name": {
        "type": "string",
        "description": "The name of the template."
      },
      "alias": {
        "type": "string",
        "description": "The alias of the template."
      },
      "from": {
        "type": "string",
        "description": "Sender email address. To include a friendly name, use the format \"Your Name \"."
      },
      "subject": {
        "type": "string",
        "description": "Email subject."
      },
      "reply_to": {
        "type": "array",
        "description": "Reply-to email addresses.",
        "items": {
          "type": "string"
        }
      },
      "html": {
        "type": "string",
        "description": "The HTML version of the template."
      },
      "text": {
        "type": "string",
        "description": "The plain text version of the template."
      },
      "variables": {
        "type": "array",
        "items": {
          "type": "object",
          "properties": {
            "key": {
              "type": "string",
              "description": "The key of the variable."
            },
            "type": {
              "type": "string",
              "description": "The type of the variable.",
              "enum": [
                "string",
                "number",
                "boolean",
                "object",
                "list"
              ]
            },
            "fallback_value": {
              "description": "The fallback value of the variable.",
              "anyOf": [
                {
                  "type": "string"
                },
                {
                  "type": "number"
                },
                {
                  "type": "boolean"
                },
                {
                  "type": "object"
                },
                {
                  "type": "array",
                  "items": {}
                }
              ]
            }
          },
          "required": [
            "key",
            "type"
          ],
          "additionalProperties": false
        }
      }
    },
    "required": [
      "id"
    ],
    "additionalProperties": false
  }
  ```
</details>

## Output reference

Standard tool result payload.

| Name | Type | Required | Default | Details |
| - | - | - | - | - |
| `result.data` | `object` | Yes | — | Provider response payload. |
| `result.data.id` | `string` | No | — | The ID of the template. |
| `result.data.object` | `string` | No | — | The object type of the response. |
| `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": {
        "type": "object",
        "description": "Provider response payload.",
        "properties": {
          "id": {
            "type": "string",
            "description": "The ID of the template."
          },
          "object": {
            "type": "string",
            "description": "The object type of the response."
          }
        },
        "additionalProperties": false
      },
      "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

* [Connect integrations](https://deepline.com/docs/integrations.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)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.