Recurring Interval Scheduling - Send overdue emails at fixed intervals after due date passes (e.g., every 3 days) Dual Stop Conditions - Choose to stop after a maximum number of days OR a maximum number of emails, whichever comes first Flexible Day Limits - Configure maximum days after due date to continue sending (0 = unlimited) Email Count Limits - Configure maximum number of overdue emails to send per invoice (0 = unlimited) Daily Send Time Control - Set a specific time each day for all overdue emails to dispatch Email Subject Customization - Create custom subject lines with placeholder variables HTML Email Body Editor - Rich text editor with media buttons for professional formatting Dynamic Placeholders - Insert customer name, invoice number, amount due, dates, and days overdue Urgent