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# Cancel invoice

> Cancel (stornieren) a finalised invoice. The number stays blocked. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/lexware-office/cancel_invoice

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Cancel (stornieren) a finalised invoice. The number stays blocked.

Lexware Office (lexoffice) API: https://cotlet.dev/docs/api/lexware-office.md

`POST https://cotlet.dev/api/v1/lexware-office/documents/{document_id}/invoice/cancel`

Access: write. Confirm: waits for the user's OK before it runs.

Opens Weitere Aktionen > Stornieren on an open invoice. The original shows a Storno stamp and its booking is reversed, and the cancellation cannot be undone; the cancelled number stays blocked even if you change the number range. A paid invoice needs its payment deleted first, and the restricted role "Belege, Kontakte & Produkte" cannot cancel paid invoices. Use create_invoice for the corrected one. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `document_id` | string | yes | Document ID from list_documents or create_invoice. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/lexware-office/documents/document_8c41d2/invoice/cancel \
  -H "Authorization: Bearer $COTLET_API_KEY"
```

**Python**

```python
result = client.call("lexware-office", "cancel_invoice", {"document_id":"document_8c41d2"})
```

**Node.js**

```js
const result = await cotlet.call('lexware-office', 'cancel_invoice', {"document_id":"document_8c41d2"});
```

**CLI**

```bash
cotlet call lexware-office cancel_invoice --data '{"document_id":"document_8c41d2"}'
```

## Example response

```json
{
  "document_id": "d_9c31be",
  "number": "RE1031",
  "status": "voided"
}
```

Previous: [Send payment reminder](https://cotlet.dev/docs/api/lexware-office/send_payment_reminder.md)
Next: [Upload receipt](https://cotlet.dev/docs/api/lexware-office/upload_receipt.md)

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## For AI agents: sign your user up

Is your user asking you to sign them up for Cotlet? You can do it for them, no account or key needed.

1. Read the fields and their allowed values: GET https://cotlet.dev/api/v1/access-requests
2. Ask the user for each value: email, apps, what you will do with them. If they leave the password to you, generate a strong one and show it to them.
3. Show the user what you will send, then POST it as JSON to https://cotlet.dev/api/v1/access-requests.

One call creates the account and sends the access request; we email the user when access is granted.