To solve the task in Bitrix

The problem is, the catalog is loaded treatment yml yakus (from the market), we have three types of prices with different margin on the base price (which is loaded from a yml file), now I noticed that when you change purchase price, on the website the prices are not changed in the item card in the directory are needed, if you go to the card and click save then the price on the website changed. It is necessary to solve a problem that would update the price.