How to enable auto send overdue emails to your customer?

1. Go to My Biztory2. Click the "Email" column.3. Set the Payment Overdue Email column to "Yes" for enabling the auto-send overdue emails, for the Payment Overdue Options column can select Number of days in the first box and the dropdown can select "On Due Date", "Day(s) before due date" and "Day(s) after due date".
4. Click "Save".