On the day of your Standing order transfer, the bank systems shall check your bank account.
If your funds will be sufficient, the transfer will be executed. If not, bank systems will be checking your account for 10 more days after the payment date. If your funds will be still insufficient for the payment, standing order will not be paid.
Important: your Standing order agreement will not be terminated because of insufficient funds for the payment. Next payment day that you’ve set yourself, bank systems will be checking your account again to make the transfer.