Once a payment has been applied it cannot be updated without deleting and re-entering the payment - triggering another email to go to the customer. An email to the customer may be warranted if the amount or the payment type is updated, but wouldn't be warranted if it's only the Deposit Date or Notes that require updating.

Deposit Date is not always known at the time of Payment Entry. To make Deposit Date more meaningful we need to be able to update it once we know what it is (after the Payment has been applied).

And, Notes may require updating post entry when an anomaly needs to be reported to the accountant.

In addition, Payment Notes aren't displayed once a payment has been entered. It would be nice to be able to see the Notes online rather than having to download payments to see them.