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## Carts API documents the is\_custom\_price line item field

The Carts (V3) API reference now documents the `is_custom_price` property returned on cart line items.

* **`is_custom_price`** — a boolean on physical and digital line items that indicates whether the item's price was overridden with a custom value using the `list_price` field.

For details, see the [Get a cart](/developer/api-reference/rest/admin/management/carts/carts-single/get-cart) endpoint reference.