--- title: Note description: The API for interacting with the note applied to checkout. api_version: 2025-10 api_name: customer-account-ui-extensions source_url: html: >- https://shopify.dev/docs/api/customer-account-ui-extensions/latest/apis/order-status-api/note md: >- https://shopify.dev/docs/api/customer-account-ui-extensions/latest/apis/order-status-api/note.md --- # Note The API for interacting with the note applied to checkout. ## OrderStatusApi The API object provided to this and other `customer-account.order-status` extension targets. * note SubscribableSignalLike\ required A note left by the customer to the merchant, either in their cart or during checkout. ### SubscribableSignalLike Represents a read-only value managed on the main thread that an extension can subscribe to. Example: Checkout uses this to manage the state of an object and communicate state changes to extensions running in a sandboxed web worker. This interface is compatible with \[Preact's ReadonlySignal]\(https://github.com/preactjs/signals/blob/a023a132a81bd4ba4a0bebb8cbbeffbd8c8bbafc/packages/core/src/index.ts#L700-L709). Some fields are deprecated but still supported for backwards compatibility. In version 2025-10, \[\`StatefulRemoteSubscribable\`]\(https://github.com/Shopify/remote-dom/blob/03929aa8418a89d41d294005f219837582718df8/packages/async-subscription/src/types.ts#L17) was replaced with \`ReadonlySignalLike\`. Checkout will remove the old fields some time in the future. * current ```ts T ``` * destroy ```ts () => Promise ``` * subscribe ```ts (fn: (value: T) => void) => () => void ``` * value ```ts T ``` ```ts export interface SubscribableSignalLike extends ReadonlySignalLike { /** * @deprecated Use `.value` instead. */ readonly current: T; /** * @deprecated No longer needed. Use Preact Signal management instead. */ destroy(): Promise; } ```