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This strategy defines how we handle the situation where an item exists in an Order, and then later on another is added but in the meantime the price of the ProductVariant has changed.

By default, the latest price will be used. Any price changes resulting from using a newer price will be reflected in the GraphQL OrderLine.unitPrice[WithTax]ChangeSinceAdded field.


This is configured via the orderOptions.changedPriceHandlingStrategy property of your VendureConfig.

interface ChangedPriceHandlingStrategy extends InjectableStrategy {
ctx: RequestContext,
current: PriceCalculationResult,
orderLine: OrderLine,
order: Order,
): PriceCalculationResult | Promise<PriceCalculationResult>;


This method is called when adding to or adjusting OrderLines, if the latest price (as determined by the ProductVariant price, potentially modified by the configured

OrderItemPriceCalculationStrategy) differs from the initial price at the time that the OrderLine was created.