In your personal switch status under the heading "Payment partner" you can easily see at any time which payment partners have already been informed about your switch and which ones you may still need to inform (e.g. online payment partners such as Netflix, PayPal etc.).
The check as to whether your payment partners are already debiting your new bank details can be initiated using the "Connect bank account" button. By linking your account, you can then see at a glance whether a payment partner is already debiting your new account.