Does Meituan have to buy food and win new users?

There are two kinds of products: new group and special group. The new group must invite new users who have not placed an order, while the special group does not restrict users' participation, and both new and old users can participate.

If the group assembling fails, the corresponding order will be cancelled automatically, and the order money will also be returned, and the qualification for sending or assembling the group will be returned. If the team is successful, the order cannot be cancelled.