If the first deduction time is selected, the first deduction will be made according to the date you set. After that, the deduction time is from the first fund trading day of each month to the last fund trading day of this month, and the deduction is successful on the day when your account has sufficient funds, not on a specific day.
If you want to deduct money from 10 and buy a fund with a net value of 10, then deposit the money during the day on the 9th. If the amount in the card is insufficient, the deduction date will be postponed until the deduction is completed. If the default exceeds the maximum number of defaults (tentatively 3 times), that is, more than three deduction periods (three months), the fixed investment plan will be cancelled.