ReadonlyactionOptional ReadonlycustomOptional Readonlycustomkey of the CustomLineItem to update. Either customLineItemId or customLineItemKey is required.
Optional ReadonlyfieldsObject containing the Custom Fields fields for the CustomLineItem.
Required if at least one Custom Field is defined as required in the `fieldDefinitions` of the referenced [Type](ctp:api:type:Type).
Optional ReadonlytypeDefines the Type that extends the CustomLineItem with Custom Fields. If absent, any existing Type and Custom Fields are removed from the CustomLineItem.
idof the CustomLineItem to update. EithercustomLineItemIdorcustomLineItemKeyis required.