ReadonlyactionOptional Readonlycustomid of the CustomLineItem to update. Either customLineItemId or customLineItemKey is required.
Optional Readonlycustomkey of the CustomLineItem to update. Either customLineItemId or customLineItemKey is required.
Optional ReadonlyexternalValue to set. If empty, any existing value is removed.
Optional Readonlyshippingkey of the ShippingMethod used for this Custom Line Item.
This is required for Carts with Multiple ShippingMode.
Can be used if the Cart has the
ExternalAmountTaxMode.