# Create department

Create a new department within an organization.

Creates a new department in the specified organization. You can optionally place it under an existing parent department to build a hierarchy. The department name must be unique within the organization.

#### Path Parameters

**`organization_id`** string required

The unique identifier of the organization (format: `org_*`).

#### Request Body

**`name`** string required

The name of the department. Must be between 1 and 255 characters.

**`description`** string optional

A description of the department's purpose and responsibilities.

**`parent_id`** string | null optional

The ID of the parent department (format: `dept_*`). If omitted or `null`, the department is created as a top-level department.

## Returns

The newly created department object with a `201 Created` status code.

Request

```bash cURL
curl -X POST https://api.aitronos.com/v1/organizations/org_xyz789/departments \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Backend",
    "description": "Backend engineering team",
    "parent_id": "dept_abc123"
  }'
```


```python Python SDK
from aitronos import Aitronos

client = Aitronos(api_key="your-api-key")

# Department endpoints coming to SDK soon
# result = client.departments.create(
#     organization_id="org_xyz789",
#     name="Backend",
#     description="Backend engineering team",
#     parent_id="dept_abc123",
# )
```


```python Python
import requests

org_id = "org_xyz789"
url = f"https://api.aitronos.com/v1/organizations/{org_id}/departments"
headers = {
    "Authorization": "Bearer YOUR_ACCESS_TOKEN",
    "Content-Type": "application/json",
}
data = {
    "name": "Backend",
    "description": "Backend engineering team",
    "parent_id": "dept_abc123",
}

response = requests.post(url, headers=headers, json=data)
department = response.json()
print(department)
```


```javascript JavaScript
const orgId = "org_xyz789";

const response = await fetch(
  `https://api.aitronos.com/v1/organizations/${orgId}/departments`,
  {
    method: "POST",
    headers: {
      "Authorization": `Bearer ${accessToken}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      name: "Backend",
      description: "Backend engineering team",
      parent_id: "dept_abc123",
    }),
  }
);

const department = await response.json();
console.log(department);
```

Response

```json 201 Created
{
  "id": "dept_def456",
  "name": "Backend",
  "description": "Backend engineering team",
  "parent_id": "dept_abc123",
  "path": "/dept_abc123/dept_def456",
  "depth": 1,
  "organization_id": "org_xyz789",
  "member_count": 0,
  "is_active": true,
  "is_default": false,
  "color": null,
  "created_by": "usr_owner1",
  "created_at": "2025-01-16T14:30:00Z"
}
```


```json 409 Error
{
  "success": false,
  "error": {
    "code": "DEPARTMENT_NAME_CONFLICT",
    "message": "A department with this name already exists in the organization.",
    "system_message": "Department name conflict",
    "type": "client_error",
    "status": 409,
    "details": { "name": "Backend" },
    "trace_id": "abc-123-def",
    "timestamp": "2025-11-02T08:21:45Z"
  }
}
```

## Related Resources

- [Get Department Tree](/docs/api-reference/departments/tree)
- [List Departments](/docs/api-reference/departments/list)
- [Retrieve Department](/docs/api-reference/departments/retrieve)
- [Update Department](/docs/api-reference/departments/update)
- [Reparent Department](/docs/api-reference/departments/reparent)
- [Delete Department](/docs/api-reference/departments/delete)
- [List Department Members](/docs/api-reference/departments/list-members)
- [Add Department Member](/docs/api-reference/departments/add-member)
- [Remove Department Member](/docs/api-reference/departments/remove-member)
- [Department Object](/docs/api-reference/objects/department-object)