Automatic payments can be convenient. A payment list makes it easier to see what will be collected and when.
Record the payee, the date or frequency, whether the amount changes and the account used. If the payment is set up through the merchant, save the location of its billing controls. If it is scheduled through your bank, note that separately.
Check upcoming payments against the account balance and any recent service changes. When you change a payment method, verify that the next bill uses the intended account. Keep confirmations from the provider with the record.
Further reading: CFPB explanation of automatic bank payments.