--- title: Raise price and inventory event updates slug: commerce-connect-13/docs/raise-price-and-inventory-event-updates docTags: createdAt: 2026-07-23T09:44:48.000Z --- Events are raised when changes are made to prices and inventories, which trigger the indexing of updated content. ## Price updated event from custom price service The default price service, PriceServiceDatabase, raises an event when a price is changed. This lets *EPiServer.Find.Commerce* re-index the variant content with updated prices. Modify a custom price service to re-index variant contents when a price is updated. 1. Add a dependency to Mediachase.Commerce.Engine.Events.CatalogKeyEventBroadcaster in the service. 2. Call OnPriceUpdated(priceValues, new PriceUpdateEventArgs(catalogKeys)) on the CatalogKeyEventBroadcaster instance when a price has been added, updated or removed. catalogKeys is an IEnumerable\ that works as a reference to variants to which the prices belong. ## Inventory updated event from custom inventory service The default inventory service, InventoryDatabase, raises an event when an inventory is changed. This makes it possible for [EPiServer.Find.Commerce](https://world.optimizely.com/blogs/Jonas-Bergqvist/Dates/2015/11/new-version-of-episerver-find-commerce/) to re-index variant content with updated inventory information. A custom inventory service needs to be modified to make it possible to reindex variant contents when an inventory is updated. 1. Add a dependency to Mediachase.Commerce.Engine.Events.CatalogKeyEventBroadcaster in the service. 2. Call OnInventoryUpdated(inventory, new InventoryUpdateEventArgs(catalogKeys)) on the CatalogKeyEventBroadcaster instance when an inventory is added/updated/removed. The catalogKeys is an IEnumerable\ that works as a reference to the variants to which the inventories belong. If the inventory is deleted, the event has an empty list of inventory, and a list of catalogkeys of deleted inventory.