Command: order.setStaticDiscountValue

Updates the value of an existing static discount

Body

discountId	uuid The static discount to update
isPercentage	boolean (optional) Whether the Value should be treated as a percentage. If true, Value should be a factor (e.g. 0.1 = 10%).
value	number The value of the manual discount. If IsPercentage is true, this should be a factor (e.g. 0.1 = 10%). For non-percentage discounts, this will be treated as including Tax or not depending on the Order's TaxIncluded setting.