# CartDiscountCodesUpdatePayload

Payload returned by the cartDiscountCodesUpdate mutation. This type contains the updated cart and any errors that occurred during the discount codes update operation.

## Type Definition

```graphql
type CartDiscountCodesUpdatePayload {
  cart: Cart
  userErrors: [UserError]!
}
```

## Fields

| Field | Type | Description |
|-------|------|-------------|
| cart | Cart | The updated cart |
| userErrors | [UserError]! | List of errors that occurred during cart discount codes update |

## Relationships

CartDiscountCodesUpdatePayload is returned by the `cartDiscountCodesUpdate` mutation. It contains a reference to the updated Cart object and includes UserError objects that detail any validation or processing errors that occurred during the discount code update operation.

## Example

```graphql
mutation UpdateCartDiscountCodes($cartId: String!, $discountCodes: [String!]!) {
  cartDiscountCodesUpdate(cartId: $cartId, discountCodes: $discountCodes) {
    cart {
      id
      lines(first: 10) {
        edges {
          node {
            id
            quantity
          }
        }
      }
    }
    userErrors {
      field
      message
    }
  }
}
```

## Implements

This type does not implement any interfaces.

## Related Types

- [Cart](/reference/storefront/v1/objects/cart)
- [UserError](/reference/storefront/v1/objects/user-error)