Brokers can open a three-party depository fund account. I'll bring my ID card and it will be ready in half an hour. By the way, I will handle the fixed investment at the brokerage counter to determine the next period and amount (some brokers can also make fixed investments online). In the future, as long as you have money in your securities account, you will automatically deduct it. But the money must be transferred from the bank to the securities account, and the money in the bank will not be used. So remember to transfer money in advance or put it into a securities account. There is no need to transfer money for the bank to make a fixed investment, but it seems that the procedure is more troublesome and it does not arrive on the same day (the brokerage transaction funds do not arrive on the same day).
Welcome questions.