# The promotion use model

Source: https://developers.swell.is/backend-api/promotion-uses/the-promotion-use-model

## Fields

- `id` (objectId): Unique identifier for the promotion use.
- `account_id` (objectId): ID of the customer's account.
- `account` (Account): Expandable link to the account that used the promotion.
- `date_created` (date, auto): Date and time the promotion use was created.
- `date_updated` (date, auto): Date and time the promotion use was last updated.
- `order` (Order): Expandable link to the order the promotion was applied to.
- `order_id` (objectId): ID of the order that used the promotion.
- `parent` (Promotion): Expandable link to the parent promotion.
- `parent_id` (objectId, required): ID of the parent promotion.
- `subscription` (Subscription): Expandable link to the subscription that spawned the promotion use, if applicable.
- `subscription_id` (objectId): ID of the subscription that spawned the promotion use, if applicable.

## Example response

```json
{
  "parent_id": "6285746dd0fc72001a6a2f4e",
  "account_id": "628fb3c90f42a10014f04787",
  "order_id": "62a09d0317f83f001975b491",
  "date_created": "2022-06-08T13:08:10.445Z",
  "id": "62a09f3a17f83f001975b4d1"
},
```