The fund deduction date for fixed investment is agreed between you and the bank, usually 1-25 days will work.
When you apply for fixed investment in the same month, you can also deduct the money in that month, but the deduction date must be greater than the date you open fixed investment.
For example, if you apply for fixed investment business today and the balance in the card is sufficient, you can set the deduction date as the 26th. If you set it as the 1st of each month, the payment will definitely not be deducted this month.
(It is recommended that you choose the monthly deduction date from 1 to 25, mainly to prevent the scheduled investment from being unable to be deducted during holidays.