Need to End Date Supplier Banking Details, but don't know which End Date field to populate

We are using R12.1.3, and we had several suppliers that had new bank accounts created by mistake. We now want to end date these accounts, but we are a little confused as to which End Date we are suppose to populate.

If you look under Banking Details there is a place to put in an End Date, however if you click on the Update icon, and Click Show Bank Account Details you will see another End Date. Are we suppose to enter end dates for both, or do we only enter one end date and it is suppose to populate the other.