If the change pass has a daily limit, if it is sold out, the investors' extra funds can only be converted into other products the next day to continue their investment. For example, change money has signed a fund scale of 1 million with a fund company. After buying it for 1 million, the system will show that the quota has been sold out, but investors can switch to other funds to continue investing and still enjoy the interest of the money fund.

There are many funds that can be docked with change money. When the quota of product A is used up, investors can convert it into product B and continue to invest.