How to enable the notifications to send emails to the residents whenever a invoice/receipt is posted against their unit?

How to enable the notifications to send emails to the residents whenever a invoice/receipt is posted against their unit?

 To send the emails to the residents whenever a invoice/receipt is posted against their unit, kindly follow the below steps:

Go to Income tracker>>Setup>>Notifications>>Check the check box: Send all Invoices, Reciepts, Payment Reminders to All Members Only Owners of the flat>>Save
Note: If this is not checked, only the Primary Contact & Care Taker of a flat will receive these emails when invoices are posted.