Redemptions
Redeem Stackable Discounts
## How API returns calculated discounts and order amounts in the response
In the table below, you can see the logic the API follows to calculate discounts and amounts:
| **Field** | **Calculation** | **Description** |
|:---|:---|:---|
| amount | N/A | This field shows the order amount before applying any discount |
| total_amount | `total_amount` = `amount` - `total_discount_amount` | This field shows the order amount after applying all the discounts |
| discount_amount | `discount_amount` = `previous_discount_amount` + `applied_discount_amount` | This field sums up all order-level discounts up to and including the specific discount being calculated for the stacked redemption. |
| items_discount_amount | sum(items, i => i.discount_amount) | This field sums up all product-specific discounts |
| total_discount_amount | `total_discount_amount` = `discount_amount` + `items_discount_amount` | This field sums up all order-level and all product-specific discounts |
| applied_discount_amount | N/A | This field shows the order-level discount applied in a particular request |
| items_applied_discount_amount | sum(items, i => i.applied_discount_amount) | This field sums up all product-specific discounts applied in a particular request |
| total_applied_discount_amount | `total_applied_discount_amount` = `applied_discount_amount` + `items_applied_discount_amount` | This field sums up all order-level and all product-specific discounts applied in a particular request |
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> 📘 Rollbacks
>
> You can't roll back a child redemption. When you call rollback on a stacked redemption, all child redemptions will be rolled back. You need to refer to a parent redemption ID in your <!-- [rollback request](OpenAPI.json/paths/~1redemptions~1{parentRedemptionId}~1rollbacks/post) -->[rollback request](ref:rollback-stacked-redemptions).
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> 📘 Also available on client-side
>
> This method is also accessible through public keys which you can use in client-side apps: mobile and web browser apps. Go to the dedicated [endpoint](ref:redeem-stacked-discounts-client-side) to learn more.
> - Use `X-Client-Application-Id` as the application ID header.
> - Use `X-Client-Token` as the appliction secret key header.
> - Use client-side base URL.
> - Use an `origin` header for your custom domain.