Defines the product redeemed as a reward.
| Name | Type | Description |
|---|---|---|
| id | String | Campaign unique ID. |
| balance | Integer | Points available for reward redemption. This is calculated as follows: `balance` = `points` - `expired_points` - `subtracted_points` - `redemption.redeemed_points`. |
| type | String | Defines the type of the campaign. |