Following steps to be followed in case of society decides to send all invoices, Receipts, payment reminders emails to all member of the flat (both Owner & Tenant):
Step 1: Go to Income tracker >>Setup >> Notification
Step 2: Enable the checkbox for "Send all Invoices, Receipts, Payment Reminders to for "All members" or "Only Owners "of the flat" as per your requirement >> Save Changes.