> Documentation index: [Saleor](/llms.txt) · [This section](/api-reference/checkout/llms.txt)
> Source: https://docs.saleor.io/api-reference/checkout/mutations/checkout-customer-note-update

# checkoutCustomerNoteUpdate Mutation

Updates customer note in the existing checkout object.

Added in Saleor 3.21

Triggers the following webhook events:

-   CHECKOUT\_UPDATED (async): A checkout was updated.

```graphql
checkoutCustomerNoteUpdate(
  customerNote: String!
  id: ID!
): CheckoutCustomerNoteUpdate
```

Details

```graphql
type CheckoutCustomerNoteUpdate {
  checkout: Checkout
  checkoutErrors: [CheckoutError!]! @deprecated
  errors: [CheckoutError!]!
}
```

<a id="arguments"></a>

### Arguments

<a id="customer-note"></a>

#### [`customerNote`](#customer-note) ● [`String!`](/api-reference/miscellaneous/scalars/string.md)

New customer note content.

<a id="id"></a>

#### [`id`](#id) ● [`ID!`](/api-reference/miscellaneous/scalars/id.md)

The checkout's ID.

<a id="type"></a>

### Type

<a id="checkoutcustomernoteupdate"></a>

#### [`CheckoutCustomerNoteUpdate`](/api-reference/checkout/objects/checkout-customer-note-update.md)

Updates customer note in the existing checkout object.

Added in Saleor 3.21

Triggers the following webhook events:

-   CHECKOUT\_UPDATED (async): A checkout was updated.