ReadonlyactionOptional ReadonlyexternalValue to set.
If externalPrice is not given and the priceMode is ExternalPrice, the external price is unset and the priceMode is set to Platform.
To set the money value in high precision, use [HighPrecisionMoneyDraft](ctp:api:type:HighPrecisionMoneyDraft).
Optional Readonlylineid of the LineItem to update. Either lineItemId or lineItemKey is required.
Optional Readonlylinekey of the LineItem to update. Either lineItemId or lineItemKey is required.
Sets the LineItem
priceand changes thepriceModetoExternalPriceLineItemPriceMode.