The Add/Edit Customer Additional Info window is where you fill in the details for customers. To access the Add/Edit Customer Additional Info window, click Info from the Edit Customer screen. Users with viewer-only privileges will be unable to edit this additional info. Opening Balance
Enter the opening balance of the customer if there is.Balance Due
This is the current total balance due for the customer.Oldest Date Due
This is the due date of the oldest invoice of the customer.Last Invoice
This is the date that the last invoice for the customer was created.