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# Import a supplier invoice

> Upload a supplier invoice PDF with its date, due date and amounts. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/pennylane/import_supplier_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)

Upload a supplier invoice PDF with its date, due date and amounts.

Pennylane API: https://cotlet.dev/docs/api/pennylane.md

`POST https://cotlet.dev/api/v1/pennylane/suppliers/{supplier_id}/invoice`

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

Uploads the PDF and creates the supplier invoice, which then appears under Invoicing > Supplier Invoices and posts entries to the Purchases journal. Only PDF files work, up to 100 MB. Pennylane rejects a PDF that already exists in the account, so importing the same file twice fails. Amounts are strings and the lines must add up to the total. It books an expense in your accounts, so it asks for your OK. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `file_url` | string | yes | HTTPS link to the PDF, or a PDF sent with the request. |
| `supplier_id` | integer | yes | Supplier ID from list_suppliers. |
| `date` | date | yes | Invoice date printed on the PDF. |
| `deadline` | date | yes | Payment due date. |
| `amount_before_tax` | string | yes | Total before tax, e.g. 62.00. |
| `tax` | string | yes | Total tax, e.g. 12.40. |
| `amount` | string | yes | Total including tax; must equal amount_before_tax plus tax. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/pennylane/suppliers/1/invoice \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"file_url":"https://example.com","date":"2026-10-01","deadline":"2026-10-01","amount_before_tax":"amount before tax","tax":"tax","amount":"amount"}'
```

**Python**

```python
result = client.call("pennylane", "import_supplier_invoice", {"file_url":"https://example.com","supplier_id":1,"date":"2026-10-01","deadline":"2026-10-01","amount_before_tax":"amount before tax","tax":"tax","amount":"amount"})
```

**Node.js**

```js
const result = await cotlet.call('pennylane', 'import_supplier_invoice', {"file_url":"https://example.com","supplier_id":1,"date":"2026-10-01","deadline":"2026-10-01","amount_before_tax":"amount before tax","tax":"tax","amount":"amount"});
```

**CLI**

```bash
cotlet call pennylane import_supplier_invoice --data '{"file_url":"https://example.com","supplier_id":1,"date":"2026-10-01","deadline":"2026-10-01","amount_before_tax":"amount before tax","tax":"tax","amount":"amount"}'
```

## Example response

```json
{
  "invoice_id": 90455,
  "supplier": {
    "supplier_id": 612,
    "name": "OVH SAS"
  },
  "date": "2026-10-01",
  "deadline": "2026-10-31",
  "amount_before_tax": "62.00",
  "tax": "12.40",
  "amount": "74.40",
  "currency": "EUR"
}
```

Previous: [Send a customer invoice](https://cotlet.dev/docs/api/pennylane/send_customer_invoice.md)
Next: [Categorise a bank transaction](https://cotlet.dev/docs/api/pennylane/categorise_transaction.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.