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# Create draft invoice

> Create a draft invoice for a customer with lines. The draft is not booked. Inputs, cURL, Python and Node.js examples and an example response.

Source: https://cotlet.dev/docs/api/e-conomic/create_draft_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)

Create a draft invoice for a customer with lines. The draft is not booked.

e-conomic API: https://cotlet.dev/docs/api/e-conomic.md

`POST https://cotlet.dev/api/v1/e-conomic/customers/{customer_number}/draft-invoices`

Access: write.

Creates a draft with the customer, date, currency, payment terms, layout and lines. The recipient name and VAT zone are copied from the customer. The draft stays editable and is not booked, so it reaches no one and runs without asking first. Lines take a product number or a free text with quantity and unit price. Returns the draft number and net, VAT and gross totals.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `customer_number` | integer | yes | Customer number from list_customers or create_customer. |
| `date` | date | yes | Invoice date, YYYY-MM-DD. |
| `currency` | string | yes | Currency code, e.g. DKK. |
| `payment_terms_number` | integer | yes | Payment terms number from the customer. |
| `layout_number` | integer | yes | Layout number for the invoice. |
| `lines` | array | yes | Lines: product_number (optional), description, quantity, unit_price. |

## Request

**cURL**

```bash
curl -X POST https://cotlet.dev/api/v1/e-conomic/customers/14/draft-invoices \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"date":"2026-10-31","currency":"DKK","payment_terms_number":2,"layout_number":1,"lines":[{"description":"Consulting, October","quantity":10,"unit_price":95},{"description":"Workshop day","quantity":1,"unit_price":250}]}'
```

**Python**

```python
result = client.call("e-conomic", "create_draft_invoice", {"customer_number":14,"date":"2026-10-31","currency":"DKK","payment_terms_number":2,"layout_number":1,"lines":[{"description":"Consulting, October","quantity":10,"unit_price":95},{"description":"Workshop day","quantity":1,"unit_price":250}]})
```

**Node.js**

```js
const result = await cotlet.call('e-conomic', 'create_draft_invoice', {"customer_number":14,"date":"2026-10-31","currency":"DKK","payment_terms_number":2,"layout_number":1,"lines":[{"description":"Consulting, October","quantity":10,"unit_price":95},{"description":"Workshop day","quantity":1,"unit_price":250}]});
```

**CLI**

```bash
cotlet call e-conomic create_draft_invoice --data '{"customer_number":14,"date":"2026-10-31","currency":"DKK","payment_terms_number":2,"layout_number":1,"lines":[{"description":"Consulting, October","quantity":10,"unit_price":95},{"description":"Workshop day","quantity":1,"unit_price":250}]}'
```

## Example response

```json
{
  "draft_invoice_number": 118,
  "customer_number": 14,
  "date": "2026-10-31",
  "currency": "DKK",
  "lines": 2,
  "total_net": 1200,
  "total_vat": 300,
  "total_gross": 1500,
  "booked": false
}
```

Previous: [Create customer](https://cotlet.dev/docs/api/e-conomic/create_customer.md)
Next: [Book invoice](https://cotlet.dev/docs/api/e-conomic/book_invoice.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.