Task: to reduce the cost of sending SMS with discounts, since most of the customers attracted in this way ignored them.
Uplift modeling was carried out on CatBoost classifiers, which indicated potential 10-30% of customers whose mailing lists potentially increased the company's profit. When it came to evaluating the result of selective mailing, it turned out that the conversion to the purchase of discount goods has improved twice! And the cost of mailing has almost tripled.