As a cashier, how will I get to know if a Promotion is available for the products scanned?

As a cashier, how will I get to know if a Promotion is available for the products scanned?

When you scan a product on the Web Register, that qualifies for a Promotional Discount, a notification prompt appears with the message “A Promotion is available for this sale. See Details.” Clicking on “See Details” lists all the Promotions that this product falls under.