1, time point. Before 15: 00, the subscription or redemption can be cancelled; After 15: 00, the application for subscription or redemption on the same day is irrevocable. Therefore, if you go back on your word after subscription (redemption), you must cancel the subscription or redemption before 15: 00.
This is different from stock trading. After the stock transaction is completed, it is not accepted. There is no deal for the purchase and redemption, and you can't go back on your word. You can only do the reverse operation the next day.
Comprehensive evaluation: concrete analysis of specific problems. Different fund companies will have subtle differences in dealing with these problems. So the best way is to call customer service and ask directly.