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# Cancel sales invoice

> Cancels a submitted sales invoice and reverses its ledger entries. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/erpnext/cancel_sales_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)

Cancels a submitted sales invoice and reverses its ledger entries.

ERPNext API: https://cotlet.dev/docs/api/erpnext.md

`POST https://cotlet.dev/api/v1/erpnext/sales-invoice/cancel`

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

Moves a submitted Sales Invoice to cancelled (docstatus 2) and reverses its ledger effects. ERPNext's guide says to handle linked payments, returns and stock transactions first; the call returns ERPNext's error if something still links to the invoice. A cancelled invoice cannot be edited, so create a new draft to replace it. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `invoice` | string | yes | Sales Invoice ID from list_sales_invoices or create_sales_invoice. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/erpnext/sales-invoice/cancel \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"invoice":"invoice"}'
```

**Python**

```python
result = client.call("erpnext", "cancel_sales_invoice", {"invoice":"invoice"})
```

**Node.js**

```js
const result = await cotlet.call('erpnext', 'cancel_sales_invoice', {"invoice":"invoice"});
```

**CLI**

```bash
cotlet call erpnext cancel_sales_invoice --data '{"invoice":"invoice"}'
```

## Example response

```json
{
  "invoice": "ACC-SINV-2026-00042",
  "status": "Cancelled",
  "docstatus": 2
}
```

Previous: [Submit payment entry](https://cotlet.dev/docs/api/erpnext/submit_payment_entry.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.