# UpdateCartLineChange ## Properties ### id? > `optional` **id**: `string` | `number` ### properties? > `optional` **properties**: `Record`<`string`, `any`> ### quantity > **quantity**: `number` ### sellingPlanIdentifier? > `optional` **sellingPlanIdentifier**: `string` | `number` ### variantId? > `optional` **variantId**: `string` | `number`