Functional growth As the name implies, functional growth is generally the addition of some kind of function to the product, thereby bringing about the growth or activity of users. Common sharing functions, giving red envelopes to users, inviting groups to enjoy low prices, etc., fall into this category. In previous years, doing a similar feature on its own generally led to decent growth. But now, sharing, giving red envelopes, grouping, haggling and so on are almost standard features of all p...