The “Show notice on the cart page” feature allows you to display a notice associated with a specific product on the cart page when the user adds that product to their cart. This can be useful for providing additional/missed information or promotions related to the product.
For example, if the product has a special promotion or discount associated with it, the store manager can display a notice with a coupon code on the cart page, which the user can then use at the time of checkout.
This will ensure your customers know all the offers and promotions right after adding products to their cart, easily available on the checkout page.