Change in purchase price

Tell me please. I have a purchase price of $ for each product. But we buy some goods in hryvnias. I made a separate step in the "update purchase price" process [file]21144[/file] [file]21145[/file] [file]21146[/file] There, the action "Set the purchase price of the product of the order from the last warehouse operation" is selected, but the price does not update, I tried other actions with updating the price, but nothing happened [file]21144[/file] [file]21145[/file] [file]21146[/file] [file]21144[/file] [file]21145[/file] [file]21146[/file] [file]21144[/file] [file]21145[/file] [file]21146[/file] [file]21144[/file] [file]21145[/file] [file]21146[/file]