# POST /api/v1/o2c/deals/{deal_id}/create-order

> Convert a deal into a customer/project/draft order

- **Tag:** deals
- **Operation ID:** `create_order_from_deal_api_v1_o2c_deals__deal_id__create_order_post`

## Description

One-way handoff into Order-to-Cash (`CreateOrderFromDealService`): creates a customer if the deal has none yet, a project beneath it (unique per customer, case-insensitive), and a draft order pre-filled from the deal's estimates -- then freezes the deal by stamping `customer_id` / `project_id` / `order_id`. Atomic: any failure rolls back every write. Fails if the deal has already converted.

## Authentication

Bearer token in `Authorization` header.
Required header: `x-business-id: <business uuid>`.

## Parameters

- `deal_id` (path, string, required)

## Request body

Schema: `DealCreateOrderRequest`

- `project_name` (string · required) — Name for the new project created beneath the customer; must be unique (case-insensitively) among the customer's projects.
- `order_description` (string) — Order description. Defaults to the deal's name.

## Responses

### 201 — Successful Response

Schema: `SuccessEnvelope_DealCreateOrderResponse_`

- `success` (boolean)
- `message` (string)
- `code` (string)
- `data` (DealCreateOrderResponse)

### 400 — Bad Request - Invalid input

### 401 — Unauthorized - Authentication required

### 403 — Forbidden - Insufficient permissions

### 404 — Not Found - Resource does not exist

### 422 — Validation Error

Schema: `HTTPValidationError`

- `detail` (array · ValidationError) → `ValidationError`
  - `loc` (array · string | integer · required)
  - `msg` (string · required)
  - `type` (string · required)
  - `input` (object)
  - `ctx` (object)

## Code samples

### cURL

```bash
curl -X POST 'https://api.ondayzero.com/api/v1/o2c/deals/{deal_id}/create-order' \
  -H 'Authorization: Bearer dz_your_token' \
  -H 'x-business-id: YOUR_BUSINESS_ID' \
  -H 'Content-Type: application/json' \
  -d '{
  "project_name": "string"
}'
```

### JavaScript

```javascript
const response = await fetch('https://api.ondayzero.com/api/v1/o2c/deals/{deal_id}/create-order', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer dz_your_token',
    'x-business-id': 'YOUR_BUSINESS_ID',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "project_name": "string"
}),
});
const data = await response.json();
```

### Python

```python
import httpx

headers = {
    "Authorization": "Bearer dz_your_token",
    "x-business-id": "YOUR_BUSINESS_ID",
}

payload = {
  "project_name": "string"
}

response = httpx.post("https://api.ondayzero.com/api/v1/o2c/deals/{deal_id}/create-order", headers=headers, json=payload)
data = response.json()
```

## See also

- HTML version: https://www.ondayzero.com/docs/reference/deals/create-order-from-deal
- OpenAPI slice: https://www.ondayzero.com/docs/reference/deals/create-order-from-deal/openapi.json
- Other endpoints in **deals**: https://www.ondayzero.com/docs/reference/deals